DRAFT UGANDA STANDARD  
  DUS 249-3 
First Edition  
2013 -02-dd 
 
 
 Reference number  
DUS 249-3: 2013 
© UNBS 2013   
  
Engine Oils  — Performance Classification  — Part 3: 
Specific ation for Compression - ignition  (diesel)  engine s 
 DUS 249-3: 2013  
ii © UNBS 2013  – All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard does not purport to include all neces sary provisions of a contract. Users are 
responsible for its correct application  
© UNBS 200 7  
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The Executive Director  
Uganda National Bureau of Standards  
P.O. Box 6329  
Kampala  
Uganda  
Tel: 256 41 4 505 995  
Fax: 256 41 4 286 123  
E-mail: unbs@infocom.co.ug  
Web: www.unbs.go.ug  DUS 249-3:2013  
© UNBS 2013  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
Introduction  ................................ ................................ ................................ ................................ .........................  v 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Conformance  ................................ ................................ ............................. Error! Bookmark not defined.  
3 Normative references  ................................ ................................ ................................ ............................  1 
4 Terms and definitions  ................................ ................................ ................................ ...........................  3 
5 Symbols (and abbreviated terms)  ................................ ................................ ................................ ........  3 
6 Clause  ................................ ................................ ................................ ......... Error! Bookmark not defined.  
6.1 Subclause (level  1) ................................ ................................ .................... Error! Bookmark not defined.  
6.1.1 Subclause (level  2) ................................ ................................ .................... Error! Bookmark not defined.  
6.1.2 Subclause (level  2) ................................ ................................ .................... Error! Bookmark not defined.  
6.2 Subclause (lev el 1) ................................ ................................ .................... Error! Bookmark not defined.  
7 Clause  ................................ ................................ ................................ ......... Error! Bookmark not defined.  
8 Special  ................................ ................................ ................................ ................................ ....................  8 
Annex  A (normative)   Annex title  ................................ ................................ ........... Error! Bookmark not defined.  
A.1 General  ................................ ................................ ................................ .......Error! Bookmark not defined.  
A.2 Clause  ................................ ................................ ................................ ......... Error! Bookmark not defined.  
A.2.1 Subclause (level  1) ................................ ................................ .................... Error! Bookmark not defined.  
A.2.2 Subclause (level  1) ................................ ................................ .................... Error! Bookmark not defined.  
A.3 Clause  ................................ ................................ ................................ ......... Error! Bookmark not defined.  
Annex  B (informative)   Which styles correspond to which element  — Quick reference guide  .................  17 
Bibliography  ................................ ................................ ................................ ................................ ......................  21 
 DUS 249-3: 2013  
iv © UNBS 2013  – All rights reserved  
 Foreword  
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade , Industry and 
Cooperatives established under Cap 327 , of the Laws of Uganda.   UNBS is mandated to co -ordinate the 
elaboration of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on  TBT/SPS Agreements of the World Trade Organisation (WTO).  
The work of preparing Uganda Standards is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of represen tatives of 
consumers, traders, academicians, manufacturers, government and other stakeholders.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments. The committee reviews the co mments before recommending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council.  
Committee membership  DUS 249-3:2013  
© UNBS 2013  – All rights reserved  v 
 Introduction  
Due to the technological advances  that have occurred since the publishment of US 249:2000/  EAS 159, it has 
become necessary to keep abreast with such changes, hence the revision of this standard.  
It has become necessary to sub -divide this standard into four  parts.   
US 249 -1:2013 informs about the current engine oil categories per classificat ion. 
US 249 -2:2013 specifies requirements for engine oil as used in gasoline engines and  
US 249 -3: 2013 specifies requirements for engine oil as used in diesel engines.  
US 249 - 4: 2013 specifies requirements for engine oil as used gasoline engines for fou r –stroke - cycle 
motorcycles and associated drive trains  
In addition to the above US series, US ISO 13738 specifies requirements for two - stroke cycle gasoline engine 
oils (Categories EGB, EGC & EGC)engines.  
 
 DRAFT UGANDA STANDARD  DUS 249-3: 2013  
 
© UNBS 2013  – All rights  reserved  1 
 Engine Oils  — Performance Classifications  — Part 3: 
Specific ation for Compression Ignition  (diesel)  engine s 
1 Scope  
This  part of US 249 specifies requirements  and test methods  for engine oils suitable for use in heavy duty 
naturally aspirated, turbo -charged or super -charg ed compression -ignition e ngines, meeting or exceeding API 
Service Category CH -4 or equivalent ACEA performance categor ies. 
2 Normative references  
The following referenced documents are indispensable for the application of this document. For dated 
references, only the edition cited  applies. For undated references, the latest edition of the referenced 
document (including any amendments) applies.  
ASTM D 92, Standard test method for flash and fire points by Cleveland open cup tester.  
ASTM D 97, Standard test method for pour point of pe troleum products.  
ASTM D 445, Standard test method for kinematic viscosity of transparent and opaque liquids (the  calculation 
of dynamic viscosity).  
ASTM D874  Standard Test Method for Sulfated Ash from Lubricating Oils and Additives  
ASTM D 892, Standard te st method for foaming characteristics of lubricating oils.  
ASTM D 2270, Standard practice for calculating viscosity index from kinematic viscosity at 40 and  100 °C.  
ASTM D 4057, Standard practice for manual sampling of petroleum and petroleum products.  
ASTM D 4177, Standard practice for automatic sampling of petroleum and petroleum products.  
ASTM D 4485, Standard specification of engine oils.  
ASTM D 4683, Standard test method for measuring viscosity at high shear rate and high  temperature by 
tapered bearing  simulator.  
ASTM D 4684, Standard test method for determination of yield stress and apparent viscosity of  engine oils at 
low temperature.  
ASTM D 4951, Standard test method for determination of additive elements in lubricating oils by  inductively 
coupled pl asma atomic emission spectrometry.  
ASTM D 5133, Standard test method for low temperature, low shear rate, viscosity/temperature  dependence 
of lubricating oils using a temperature -scanning technique.  
ASTM D 5185, Standard test method for determination of ad ditive elements, wear metals, and  contaminants 
in used lubricating oils and determination of selected elements in base oils by  inductively coupled plasma 
atomic emission spectrometry (ICP -AEC).   
2 © UNBS 2013  – All rights reserved  
 ASTM D 5293, Standard test method for apparent viscosity of en gine oils between -5 and -35°C  using the 
cold-cranking simulator.  
ASTM D 5481, Standard test methods for measuring apparent viscosity at high -temperature and  high-shear 
rate by multicell capillary viscometer . 
ASTM D 5800, Standard test method for evaporati on loss of lubricating oils by the Noack method.  
ASTM D5966  Standard Test Method for Evaluation of Engine Oils for Roller Follower Wear in Light -Duty 
Diesel Engine  
ASTM D5967  Standard Test Method for Evaluation of Diesel Engine Oils in T -8 Diesel Engine  
ASTM D 6082, Standard test method for high temperature foaming characteristics of lubricating oils  
ASTM D6278  Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel 
Injector Apparatus  
ASTM D 6335, Standard test method f or determination of high temperature deposits by thermooxidation  
engine oil simulation test.  
ASTM D6483  Standard Test Method for Evaluation of Diesel Engine Oils in T -9 Diesel Engine  
ASTM D6594  Standard Test Method for Evaluation of Corrosiveness of Diesel  Engine Oil at 135 °C  
ASTM D6750  Standard Test Methods for Evaluation of Engine Oils in a High -Speed, Single -Cylinder Diesel 
Engine —1K Procedure (0.4% Fuel Sulfur) and 1N Procedure (0.04% Fuel Sulfur)  
ASTM D 6794, Standard test method for measuring the eff ect on filterability of engine oils after  treatment with 
various amounts of water and a long (6 -h) heating time.  
ASTM D6681  tandard Test Method for Evaluation of Engine Oils in a High Speed, Single -Cylinder Diesel 
Engine —Caterpillar 1P Test Procedure ASTM D  6922, Standard test method for the determination of 
homogeneity and miscibility in  automotive engine oils.  
ASTM D6838  Standard Test Method for Cummins M11 High Soot Test  
ASTM D6894  Standard Test Method for Evaluation of Aeration Resistance of Engine Oils in Direct -Injected 
Turbocharged Automotive Diesel Engine  
ASTM D7320  Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIG, Spark -
Ignition Engine  
ASTM D7422  Standard Test Method for Evaluation of Diesel Engine Oils in T -12 Exhau st Gas Recirculation 
Diesel Engine  
ASTM D7468  Standard Test Method for Cummins ISM Test  
ASTM E29  Standard Practice for Using Significant Digits in Test Data to Determine Conformance with 
Specifications  
US 249 -1 Engine Oil - Performance Classification - Part 1- General  
US 249 -2 Engine Oil - Performance Classification - Part 3- Specification for Spark  Ignition  (petrol)  Engines  
US 249 -4  Engine Oil - Performance Classification - Part 4: Specification for internal combustion engine oils 
used in four –stroke - cycle mo torcycle gasoline engines and associated drive trains  DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  3 
 US ISO 13738 Lubricants, industrial Oils and related products (Class L) - Classification - Part 15: Family E 
(Internal Combustion engine Oils) - Specification for two - stroke -cycle gasoline engine oils (C ategories EGB, 
EGC & EGC)  
ASTM E178  Standard Practice for Dealing With Outlying Observations  
3 Terms and definitions  and abbreviations  
3.1 Terms and definitions  
For the purposes of this standard, the following terms and definitions  in addition to those in US 249 -1, shall  
apply  
3.1.1 
additives  
chemical compounds added to lubricating oil to improve the performance characteristics of the oil.  
3.2 Abbreviations  
For the purposes of this standard, the following abbreviations in addition to those indicated in US 249-1, shall 
apply:  
3.2.1  
EELQMS  
European Engine Lubricants Quality Management System.  
3.2.2  
EOLCS  
Engine Oil Licensing  and Certification S ystem  
4 Requirements  
4.1 General  requirements  
4.1.1  Lubricants la belled or used as compression  ignition engine oil s must have a performance not lower 
than that defined by  API CH -4 and/or equivalent ACEA B 1, E4 or C1. 
API Categories CI - 4, CJ -4 and/ or ACEA B3, B4, B 5, C2, C3,  C4, E4, E6, E7 and E9 which exceed the 
performanc e requirements of CH -4 also meet the require ments of this standard.  
4.1.2  The engine  oil shall consist of acceptable petroleum products, or of acceptable synthetically prepared 
products, or of a combination of these two types of products, compounded in all cases, with such functional 
additives, for example, detergents, dispersants, oxidation inhibitors and corrosion inhibitors as are necessary 
to enable it to comply with the other requirements of this standard.  
4.1.3 Stability  
When tested in accordance with ASTM D 6922 , the engine oil shall remain cl ear and homogeneous, and shall 
show no evidence of separation of components and no evidence of colour change.  
4.1.4 Compatibility  
When tested in accordance with ASTM D 6922 , the engine oil shall be compatible with other oils of the same 
viscosity grade tha t comply with the requirements of this standard.   
4 © UNBS 2013  – All rights reserved  
 4.1.5  Licenses  
4.1.5.1  API Categories  
All products licensed under  API shall be listed in API EOLCS licensee directory ( www.api.org ) and shall bear 
appropriate labeling as described in 5.2.  
4.1.5.2  ACEA Cate gories  
All products licensed under ACEA  shall be justified with a signed EELQMS oil marketers‘ Letter of 
Conformance.  
Note:  check www.atiel.o rg for details  
4.2 Grade requirements  
4.2.1 The grade of the oil sh all be  as ag reed upon by the supplier and purchaser  and shall be one of those 
given in table 1, or a multigrade that is a combination of any one of the winter grades and any one of the 
normal grades given in table 1, for example, 15W -40. 
4.2.2 Except in the case of a multigrade oil, the requirements of the relevant properties listed in column 1 of 
table 1 shall comply with the appropriate requirements given in column 2 to column 9 of table 1. In the case of 
a multigrade oil, the values of these properties shall be as f ollows:  
a) low temperature dynamic cranking viscosity (apparent viscosity): not exceeding the maximum 
specified for the appropriate winter grade;  
b) low temperature dynamic pumping viscosity (borderline pumping temperature): not exceeding the 
maximum specified f or the appropriate winter grade;  
c) kinematic viscosity at 100 °C: in the range specified for the appropriate normal grade;  
d) high temperature high shear viscosity: as given in table 1;  
e) viscosity index: maximum value not limited;  
f) pour point: not exceeding the m aximum specified for the appropriate winter grade; and  
g) flash point: at least the minimum specified for the appropriate winter grade.  
  
6 © UNBS 2013  – All rights reserved  
  
Table 1:  Grade requirements (in accordance with SAE J300)  
 
 1 2 3 4 5 6 7 8 9 10 
Grade  10W 15W 20W 25W 20 30 40 50 Test method  
Property  Requirements  
Low temperature  
dynamic cran king 
viscosity mPa.s, max.  7 000 at -25 °C  7 000 at -20 °C  9 500 at -15 
°C 13 000 at -10°C  - - - - ASTM D5293  
 
Low temperature  
dynamic cranking  
viscosity mPa.s, max.  60 000 at -30 
°C 60 000 at -25 °C  60 000 at -20 
°C 60 000 at -15°C      ASTM D4684  
Kinema tic viscosity at  
100 °C, mm 2/s 
Min 
Max.   
 
4.1 
  
 
5.6  
 
5.6  
 
9.3  
 
5.6 
<9.3  
 
9.3 
<12.5   
 
12.5 
<16.3   
 
16.3 
<21.9  ASTM D445  
 
High temperature high  
shear (HTHS) viscosity at  
150 °C, 10 6mPa·s, min.   
2.9 for 10W -
40a  
3.7 for 5W -40a  
3.7 for 10W -
40a  
3.7 for 25W-40a  
2.6  
2.9  
3.7 3.7  ASTM  
D4683  or ASTM 
D 5481  
Viscosity index, min.  95 95 95 95 95 95 95 95 ASTM D2270  
Pour point, °C , max.  -30 -21 -21 -18 -21 -18 -9 -9 ASTM D97  
Flash point, °C, min.  204 210 213 213 213 218 224 232 ASTM D92  
aThis requirement  is applicable for the grades shown only.  DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  7 
 4.3 Performance Requirements in the Laboratory tests  
Engine oils shall conform to API CH -4 laboratory tests as indicated in table 2. Where applicable, they shall 
also conform to requirements in tables 3, 4 or 5.  
4.3.1  API Class CH -4 
All engine oils licensed  as API - CH-4 shall conform to laboratory requirements as indicated in table 2.  
Table 2:  Performance requirements of Class CH-4 of engine oils in labo ratory (bench) tests.  
Test method  Property  Value 
SAE Grade  
0W- XX 5W- XX 10W- 30 15W- 40 
Modified ASTM D 
4684 using  
Mini-Rotary 
viscometer  
(MRV) T10 or 
T10A  Used oil 
pumpability at  
20 °C and at -25 
°C, mPa·s,  
max. 60,000 
TEOST, ASTM D 
6335  Total deposit, mg, 
max. 60 
ASTM D 5133  Gelation index, 
max 12 
ASTM D 5800, or 
IP 421  Evaporative mass 
loss after 1 h  
at  250 °C, %, 
max. 22 22 22 20 
ASTM D 4683  High temperature 
shear (HTHS)  
viscosity a at 150 oC 
and 
106mPa·s, mm 2/s, 
min. - 2.6 for XW -20a 2.9 for XW -30a 3.7 
ASTM D 92  Flash point, °C, 
min. 200 200 200 - 
ASTM D 4951  
ASTM D 5185  Phosphorus 
content, % (by  
mass fraction), 
max. 0.10 
EOFT, ASTM D 
6794  Filterability, % flow 
reduction,  
max. 50 
ASTM D 892  
ASTM D 6082 b Foaming tendency, 
mL initial  
foam/mL after 
setting, max.  Sequence  
I II III High Temp  
10/0 50/0 10/0 200/50  
a   This requirement is applicable for the grades shown only.  
b
 This method shall be used for sequence IV requirement only.  
  
8 © UNBS 2013  – All rights reserved  
 4.3.2   ACEA Categories  
4.3.2.1  ACEA B1  
All eng ine oils licensed  as ACEA B1  in addition to meeting requirements stipulated is 4.3.1  above , shall 
conform to the laboratory requirements as indicated in table  3. 
Table 3: Performance requirements of ACEA B1 engine oils in laboratory (bench) tests.  
1  2 3 4 6 
Requirement  Properties and unit  Limits  Test methods  
SAE Grade  
xW- 20 xW- 30 xW- 40  
Shear stability, ,  100°C viscosity after 
30 cycles, mm2/s ≥ 5.6 ≥ 9.3 ≥ 12.0 ASTM D 6278  
Viscosity at high 
temperature and 
high shear rate,  viscosity at 150 °C 
and 106 s-1 shear 
rate, mPa.s  ≥2.9 2.9-3.5 2.9-3.5 ASTM D4683  
Evaporative loss  Max. Weight loss 
after 1h at 250 °C,% ≤13 13 13 ASTM D5800  
TBN mgKOH/g  ≥8.0 ≥ 8.0 ≥8.0 ASTM D 2896  
Sulphated Ash  % m/m  ≤1.3 ≤1.3 ≤1.3 ASTM D 874  
Foaming 
tendency  Tendency - stability, 
ml Sequence I (24 °C)  10 - nil 
Seguence II (94 °C)  50 - nil 
Sequence III (24 °C)  10 - nil ASTM D 892 
without option A.  
High 
temperature 
foaming 
tendency  Tendendcy – 
stability, ml  Sequence IV (150 °c) 100 - nil ASTM D 6082 
High temperature 
foam tes t. 
Note:  
Viscosity grades shall be as specified in table 1 or latest issue of SAE J300. No restriction shall be 
imposed except as defined by shear stability and High Temperature/ High Shear requirements. 
Manufacturers may indicate specific viscosity requi rements related to ambient temperature.  
 
4.3.2.2  ACEA C1  
All engine oils licensed  as ACEA C1  in addition to requirements stipulated in section 3.4.1 above,  shall 
conform to the laboratory requirements as indicated in table 4  
Table 4: Performance requireme nts of ACEA C1 engine oils in laboratory (bench) tests.  
Requirement  Properties and unit  Limits  Test methods  
Viscosity grades  As indicated in table 
1 or latest active 
issue of SAE J300  No restrictions except 
as defined by shear 
stability  and HT/ HS 
requi rements   
Viscosity at high 
temperature and high viscosity at 150°C 
and 106 s -1 shear 2.9 ASTM D4683  DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  9 
 shear rate,  rate, mPa.s , min  
Evaporative loss  Max. Weight loss 
after 1h at 250°C,% , 
max 13 ASTM D5800  
Sulphur  % m/m , max  0.2 ASTM D5185  
Phosphorus  % m/m, max  0.05 ASTM D5185  
Sulphated Ash  % m/m , max  0.5 ASTM D 874  
Foaming tendency  Tendency - stability, 
ml Sequence I (24°C) 10 - 
nil 
Sequence II (94°C) 50 - 
nil 
Sequence III (24°C) 10 -
nil ASTM D 892 
without option A.  
High temperature 
foaming tendency  Tend ency – stability, 
ml Sequence IV (150°C) 
100- nil  ASTM D 6082 High 
temperature foam 
test. 
4.3.2.3 ACEA E4  
All engine oils licensed as ACEA E4 in addition to requirements stipulated in clause 3.4.1 above,  shall 
conform to the laboratory requirements as in dicated in table 5  
Table 5:  Performance requirements of ACEA E4 engine oils in laboratory (bench) tests.  
Requirement  Properties and unit  Limits  Test methods  
Viscosity grades  As indicated in table 
1 or latest active 
issue of SAE J300  No restrictions excep t 
as defined by shear 
stability  and HT/ HS 
requirements   
Viscosity at high 
temperature and high 
shear rate,  viscosity at 150°C 
and 106 s -1 shear 
rate, mPa.s , min  3.5 ASTM D4683  
Evaporative loss  Max. Weight loss 
after 1h at 250°C,% , 
max 13 ASTM D5800  
Sulphated Ash  % m/m , max  ≤ 2.0 ASTM D 874  
Foaming tendency  Tendency - stability, 
ml Sequence I (24°C) 10 - 
nil 
Sequence II (94°C) 50 - 
nil 
Sequence III (24°C) 10 -
nil ASTM D 892 
without option A.  
High temperature 
foaming tendency  Tendency – stability, 
ml Sequence IV (150°C) 
200-50 ASTM D 6082 High 
temperature foam 
test. 
4.4 Requirements for engine test performance  
Engine oils shall conform to API CH -4 engine test requirements as indicated in table 6. Where applicable, they 
shall also conform to requirements in tables 7, 8 or 5.   
10 © UNBS 2013  – All rights reserved  
 4.4.1 Engine Test requirements for API CH-4 
The engine oil shall comply with engine performance requirements as specified in table 6 and shall be 
indicated in an attached certificate of conformance from an accredited testing laboratory. It shall be listed in 
API EOLCS directory as required under section 4.1.5.1  
Table 6:  Engine test performance requirements for API category CH-4. 
Test method  Rated or measured 
parameter  Primary performance criteria  
One- test Two- testA Three - testA 
ASTM D6681 (1P)  Weighted  demerits 
(WDP), max  350 378 390 
Top groove carbon 
(TGC), demerits, max  36 39 41 
Top land carbon 
(TLC), demerits, max  40 46 49 
Average Oil 
Consumption, g/h (0 -
360 h), max  12.4 12.4 12.4 
Final Oil 
Consumption, g/h 
(312-360 h), max  14.6 14.6 14.6 
Piston, ring, and liner 
scuffing  None  None  NoneB 
ASTM D6750 (1K)  Weighted demerits 
(WDK), %, max  332 347 353 
Top groove fill (TGF), 
%, max  24 27 29 
Top land heavy 
carbon (TLHC), %, 
max 4 5 5 
Average Oil 
Consumption, g/MJ 
(0-252) h, max  0.139  0.139  0.139  
Piston, ring, and liner 
scuffing  None  None  NoneB 
ASTM D6483 (T -9) Average Liner Wear, 
normalized to 1.75 % 
soot, μm max  25.4 26.6 27.1 
Average Top Ring 
Weight Loss, mg max. 120 136 144 
EOT Used Oil Lead 
Content less New Oil 
Lead  25 32 36 
or, ASTM D6987/  
ASTM D6987M (T -10) Liner wear, μm, max  32 34 35 
Ring wear, m g, max  150 159 163 
Lead content at EOT, 
mg/kg, max  50 56 59 
or, ASTM D7422 (T -
12) Liner wear, μm, max  
 30.0 30.8 31.1 
Top Ring Weight 120 132 137 DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  11 
 Loss, mg, max  
Lead content at EOT, 
mg/kg, max  65 75 79 
ASTM D5966 (RFWT)  Average Pin Wear, 
mils, max  0.30 0.33 0.36 
(μm) max  (7.6) (8.4) (9.1) 
ASTM D6838 (M11)  Rocker Pad Average 
Wt. Loss, normalized 
to 4.5 % soot,  mg 
max  
 6.5 7.5 8.0 
Oil Filter Differential 
Pressure at EOT, kPa 
max 79 93 100 
Average Engine 
Sludge, CRC Merits 
at EOT, min  8.7 8.6 8.5 
or, ASTM D7468 
(ISM ) Crosshead wear, mg, 
max  7.5 7.8 8.0 
Oil filter delta 
pressure, at 150 h, 
kPa, max  79 95 103 
Sludge rating, CRC 
merits, min  8.1 8.0 8.0 
ASTM D5967 (Ext. T -
8E)C Relative Viscosity at 
4.8 % Soot by  TGA, 
max 2.1 2.2 2.3 
Viscosi ty increase at 
3.8 % Soot by TGA, 
mm2/s, max  11.5 12.5 13.0 
ASTM D6984 
(Sequence IIIF)  60 h Viscosity at 40 
°C, increase from 10 
min sample, %  max 295 295 (MTAC)D 295 (MTAC)D 
or ASTM D7320 
(Sequence IIIG)E Kinematic viscosity, 
% increase at 40 °C 
max 150 150 (MTAC)  150 (MTAC)  
ASTM D6894 (EOAT)  Aeration, volume, % 
max 8.0 8.0 (MTAC)D 8.0 (MTAC)D 
ASTM D6594 (135 
°C, HTC BT)  Used Oil Elemental 
Concentration  
Copper, mg/kg 
increase, max  20   
Lead, mg/kg increase, 
max 120   
Tin, mg/kg increase  report    
Copper strip rating,F 
max 3   
A See Annex A .1 for additional information.  
B If three or more operationally valid tests have been run, the majority of these tests shall not have scuffing. The scuffed 
tests are considered uninterpretable, and all data  from these tests are eliminated from averaging.  
C A passing T -11 (TGA % soot at 12.0 mm2/s increase, at 100 °C, min) —6.00 (first test), 5.89 (second test), and 5.85  
12 © UNBS 2013  – All rights reserved  
 (third test) —can be used in place of a T -8E in the  applicable categories. This is not intended to indicate equivalence.  
D See Annex A .3 
E The Sequence IIIG limits shown are more restrictive than the corresponding limits in Sequence IIIF, and are not intended 
to indicate equivalence. Results meeting the  Sequence IIIG criteria stated can be used in li eu of Sequence IIIF.  
F The rating system in Test Method D130 is used to rate the copper coupon in Test Method D6594.  
 
4.4.2  ACEA B1  and C1  
In addition to the engine test requirements as given in clause 4.4.1, t he engine oil  licensed as ACEA B1  or C1  
shall comply with engine performance requirements as specified in table 6 as shall be indicated in a certificate 
of conformance from an accredited testing laboratory. It shall also meet requirements as stipulated in section 
4.1.5.2.  
Table 7: Engine Test require ments for Engine Oil Category ACEA B1 and C1  
Requirement  Test method  Properties  Limits  
High temperature  
deposits  
Ring sticking  
Oil thickening ,  CEC L -088-02  
(TU5JP -L4)  
72 Hour test  Ring sticking (each part) , 
merit , min  9.0  
 
Piston varnish  
(5 elements, average of 4 
pistons) ,merit , min  RL 216  
 
Absolute viscosity increase 
at 40oC between min and 
max values during test, 
mm2/s, max  0.8 x RL216  
 
Oil consumption,  kg/test  Report  
Low temperature  
sludge A ASTM D6593 -00  
(Sequence VG)  
Under  protocol & 
requirements for API  
 Average engine sludge, 
merit , min  
  7.8 
Rocker cover sludge, merit , 
min  
 8.0 
Average Piston skirt varnish 
, merit , min  
  7.5 
Average engine varnish, 
merit , min  
 8.9 
Comp. ring (hot stuck)  
 none  
Oil scree n clogging, % , max  20 
Valve train  
scuffing wear  CEC L -038-94  
(TU3M)   Cam wear, average, µm , 
max 10 
Cam wear, max, µm ,max  15 
Pad merit (Ave. of 8 pads), 
merit , min  7.5 DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  13 
 Black sludge B 
  
 Engine sludge, average, 
merit , min  
 RL 140 + 4σ  
 
Fuel economy C CEC L -054-96  
(M111)   Fuel economy improvement 
vs.  
Reference oil RL191 (15W -
40), % ,min 2.5/ 3.0F 
Medium  temperature  
dispersivity  CEC L -106 (DV4TD)  
To be replaced with DV6C  Absolute viscosity increase 
at  
100oC and 6 % so ot mm2/s, 
max 
  
0.60 x RL223 result  
 
Piston merit, merit , max   
(RL223 –2,5pts )  
 
Oil Dispersion at Medium 
Temperature for Passenger 
Car Direct Injection Diesel 
Engines D 
 CEC L -106 (DV6C)  
 Absolute viscosity increase 
at  
100oC and 6 % soot, mm2/s 
 Limits to be defined  
Piston merit, merit   
Wear   CEC L –099-08  
(OM646LA)   Cam wear outlet (avg. max. 
wear 8 cams), µm , max  
   120 
Cam wear inlet (avg. max. 
wear 8 c.) µm , max  
 
 100 
Cylinder wear (avg. 4 cyl.) 
µm, max   5.0 
Bore polishing (13 mm ) - 
max. value of 4 cylinders % , 
max  3.0 
Tappet wear inlet (avg. max. 
wear 8 cams) µm  Report  
Tappet wear outlet (avg. 
max. wear 8cams) µm  Report  
Piston cleanliness (avg. 4 
pistons), merits  Report  
Engine sludge avg, merits.  Report  
DI diesel Piston cleanliness 
& Ring sticking E 
 CEC L -078-99 (VW TDI)  
 Piston cleanliness, merit , 
min 
  RL206  
Ring sticking (Rings 1 & 2    
14 © UNBS 2013  – All rights reserved  
  Average of all 
8 rings, ASF , 
max 1.0 
Max. for any 
1st ring, ASF , 
max 1.0  
Max. for any 
2nd ring, ASF  0.0 
EOT TBN (ISO 3771)  
mgKOH/g , min  4.0 
EOT TAN (ASTM D 664  
mgKOH/g  Report  
A The limits shown are based on those applied in U.S. market requirements.  
B Until a new CEC Test Method is developed, the gasoline sludge protection performance of engine oil formu lations must be proved by 
the M 271 sludge test procedure as described by Daimler AG. Test results obtained by the M 271 procedure will be accepted und er the 
condition that they come from test rigs being referenced and quality controlled by Daimler AG. Lim its are based on the same reference oil 
as with the old M111 sludge test.  
C ACEA considers the CEC L -54-T-96 test the only valid comparator against which claims of lubricant fuel economy improvement should 
be made.  
D May be performed as soon as it becomes available as an alternative to the DV4 test. ACEA will decide when the DV4 test will be finally 
deleted from this specification. CEC -L-093-04 (DV4 Test) test results obtained in accordance with the ATIEL guidelines may be used by a 
grandfathering process a lso after this test has become unavailable to run and is replaced by the CEC -L-106 (DV6 Test) procedure.  
E. Test report has to give measured values before & after the test, all measurements to be taken in the same lab. Note: TAN is  
considered to become per formance criteria in the future. Not all parameters are yet official CEC parameters.  
F. Limit as applied to C1.  
 
4.4.3  ACEA E4  
In addition to the engine test requirements stipulated in clause  4.4.1,  the engine oil licensed as ACEA E4 shall 
comply with eng ine performance requirements as specified in table 8 and shall be indicated in a certificate of 
conformance from an accredited testing laboratory. It shall meet requirements as stipulated in section 4.1.5.2.  
Tabe 8 : Engine Test requirements for Engine Oil Category ACEA E4.  
Requirement  Test method  Properties  Limits  
Wear  CEC L - 099-08 
(OM646LA)  Cam wear outlet (avg. 
Max. Wear 8 cams), µm, 
max 140 
Soot in oil  ASTM D5967  Test duration 300h  
Relative viscosity at 4.8% 
soot and 50% shear loss  
1 test/2 test/3 t est 
average , max  2.1/2.2/2.3  
Bore polishing piston 
cleanliness  CEC L - 101- 08 
(OM501LA)  Bore polishing, average, 
%, max  1.0 
Piston cleanliness, 
average, merit , min  26 DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  15 
 Oil consumption, kg/test , 
max 9.0 
  
 
5.0  Pack aging and Labelling  
5.1 Pack aging  
The condition of the drums or smaller containers and the bulk tankers into which the engine oil is filled shall 
have no detrimental effect on the quality of the engine oil during normal transportation and storage. Only 
containers of the same size fille d with oil of the same batch identification shall be packed together in a carton.  
Prior to use, the containers  shall be firmly secured with a n aluminium -tamper - proof seal.   
5.2 Labelling  
5.2.1 The following information shall appear in legible and indelibl e marking on each container and each 
carton (if used):  
a) the product name for single performance engine oil ‗ Diesel Engine Oil‘  
b) or the product name for multiple performance level engine oil ‗ diesel/ petrol engine oil‘  
c) the manufacturer's identification and/ or distributor‘s name;  
d) API  and/or ACEA service classification   
e) SAE viscosity grade;  
f) Relevant quality and certification marks ; see section  5.2.3  
g) batch identification;  
h) quantity  ( l) (units of measurement) . 
i) origin of the product/Made in.  
j) Expiry date in the form ―dd/mm/yyyy‖  
k) Manufacturing date in the form "dd/mm/yyyy"  
5.2.3 Quality and Certification Marks  
5.2.3.1  API  Service Symbol ‘ donut ’ 
5.2.3.1.1  Single Performance Level  
The mark shall be divided into three sections as shown in figure 1.  
 The oil‘s pe rformance level in the top half  
 The centre indicating oil‘s viscosity (SAE oil Viscosity)   
16 © UNBS 2013  – All rights reserved  
 
 
Figure 1: API Ser vice Symbol for single performance level of engine oils.  
5.2.3.1.2  Multiple Performance levels  
Oils designed for diesel engine service might also meet gasoline engine service. For these oils the 
designation is ―C‖ category first followed by the ―S‖ catego ry. ―C‖ category oils have been formulated primarily 
for diesel engines and may not provide all of the performance requirements consistent with vehicle 
manufacturers‘ recommendations for gasoline -fueled engines.  
Note:  These oils shall have some requirement s as stipulated in US 249 -2. 
5.2.3.1.3  The API Service Symbol with CI-4 Plus  
The ―CI -4 PLUS‖ designation identifies oils formulated to provide a higher level of protection against soot -
related viscosity increase and viscosity loss due to shear in diesel en gines. When originally introduced, CI -4 
PLUS identified CI -4 oils meeting a higher level of performance. CJ -4 oils include all CI -4 PLUS performance 
requirements. CI -4 PLUS appears in the lower portion of the API Service Symbol ―Donut.‖   
 
Figure 2: API se rvice symbol for multiple performance level of engine oils.  DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  17 
 Annex A  
(normative)  
 
CH- 4 Multiple Test Programs  
A.1  For the CH - 4 test parameters on which outlier criteria apply (as shown in table A.1), if three or more 
tests are run, one complete test can be discarded if the outli er criteria defined in practice ASTM E178 are met 
at a significance level of 5%. Since the criteria are based upon the number of tests in the program, each 
program is unique.  
A.2 Section 6 (Recommended Criteria for Known Standard D eviation) of practice  ASTM  E178 is used to 
determin e outliers. The standard  deviation applied for each parameter is shown in table A.1.  
Table A.1  Outlier Test Determination Values  
Test parameter  Estimate of standard deviation  
1P- WDP  57.6 
1P- TGC  7.74 
1P- TLC 13.15  
1P- AOC  0.3238 Natural log transform  
1P- FOC  0.5177 natural log transform  
1K- WDK  35.6 
1K- TGF 15.7 
1K- TLHC  1.1 (Ln TLHC +1)  
1K- AOC  0.145  
T-9 ALW  2.35 
T-9 TRWL  29.29  
T-9 EOT ∆Pb 1.203  
T-10-CLW  4.2 
T-10- TRWL  18 
T-10-EOT ∆Pb 0.233 9 
RFWT - APW  0.04 
M11- XHEAD WEAR  2.2 
M11- OFDP  0.3270  
M1- SLUDGE  0.27 
T-8E- VISCOSITY REL at 4.8% SOOT  0.15 
T-8E VISCOSITY INCREASE AT 3.8% SOOT  0.93 
ISM- Crosshead wear  0.6 
ISM-OFDP  0.4227  
ISM SLUDGE  0.2 
 
  
18 © UNBS 2013  – All rights reserved  
 A.3  Multiple test acceptance criteria  
Multiple Test Acceptance Criteria (MTAC) , is any  data-based approach for evaluation of the quality and 
performance  of a formulation where more than one test may be run.  Generally for a candidate tested once, 
test data for each  criterion shall be a pass. For  a candidate tested twice, the mean  (average) value of each 
result shall be a pass. For a candidate  tested three or more times, one test might be declared an outlier  and 
thus discarded and the mean (average) value of retained  test data for each result shal l be a pass. Data are 
rounded in  accordance with the procedures specified in Practice E29.  
 For the Sequence IIIF, Sequence IIIG,  and EOAT tests as  used  the only  requirement for declaring an outlier 
is that three or more tests  have been run.  
 
Note:  For these tests, parameters outlier criteria are as shown in table  6.  DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  19 
 Annex  B 
(informative)  
 
Current and Obsolete engine oil Categories for compression ignition  
engine applications  
B.1 API Categories  
 Table  B.1 : Table showing current and Obsolete API Categories of Engine oil  
Category  Status  Service  
CJ-4 Current  For high -speed four -stroke cycle diesel engines designed to meet 
2010 model year on -highway as well as for previous model year 
diesel engines. These oils are  formulated for use in all applications 
with diesel fuels ranging in sulfur content up to 500 ppm (0.05% by  
weight). However, the use of these oils with greater than 15 ppm 
(0.0015% by weight) sulfur fuel may impact  exhaust aftertreatment 
system du rability and/or drain interval. CJ -4 oils are especially 
effective at sustaining  emission control system durability where 
particulate filters and other advanced aftertreatment systems are  
used. Optimum protection is provided for control of catalyst 
poisoni ng, particulate filter blocking, engine  wear, piston deposits, 
low- and high -temperature stability, soot handling properties, 
oxidative thickening,  foaming, and viscosity loss due to shear. API 
CJ-4 oils exceed the performance criteria of API CI -4 with CI -4 
PLUS, CI -4, CH -4, CG -4 and CF -4 and can effectively lubricate 
engines calling for those API Service Categories.  
When using CJ -4 oil with higher than 15 ppm sulfur fuel, consult the 
engine manufacturer for service interval.  
CI-4 Current  Introduced in 20 02. For high -speed, four -stroke engines designed to 
meet 2004 exhaust emission standards  implemented in 2002. CI -4 
oils are formulated to sustain engine durability where exhaust gas 
recirculation  
(EGR) is used and are intended for use with diesel fuels ran ging in 
sulfur content up to 0.5% weight. Can  be used in place of CD, CE, 
CF-4, CG -4, and CH -4 oils. Some CI -4 oils may also qualify for the 
CI-4 PLUS  designation.  
CH-4 Current  Introduced in 1998. For high -speed, four -stroke engines designed to 
meet 1998  exhaust emission standards.  
CH-4 oils are specifically compounded for use with diesel fuels 
ranging in sulfur content up to 0.5% weight.  
Can be used in place of CD, CE, CF -4, and CG -4 oils.  
CG-4 Obsolete  Introduced in 1995. For severe duty, high -speed, four-stroke engines 
using fuel with less than 0.5% weight  sulfur. CG -4 oils are required 
for engines meeting 1994 emission standards. Can be used in place 
of CD,  CE, and CF -4 oils.  
CF-4 Obsolete  Introduced in 1990. For high -speed, four -stroke, naturally aspirated 
and turbocharged engines. Can be used  in place of CD and CE oils.  
CF-2 Obsolete  Introduced in 1994. For severe duty, two -stroke -cycle engines. Can 
be used in place of CD -II oils.  
CF Obsolete  Introduced in 1994. For off -road, indirect -injected  and other diesel  
20 © UNBS 2013  – All rights reserved  
 engines including those using fuel with  over 0.5% weight sulfur. Can 
be used in place of CD oils.  
CE Obsolete  Introduced in 1985. For high -speed, four -stroke, naturally aspirated 
and turbocharged engines. Can be used  in place of CC and CD oils.  
CD-II Obsolete  Introduced in 1985. For two -stroke cycle engines.  
CD Obsolete  Introduced in 1955. For certain naturally aspirated and turbocharged 
engines.  
CC  Obsolete  CAUTION: Not suitable for use in diesel -powered engines built after 
1990.  
CB Obsolete  CAUTION: Not suitable for use in diesel -powered engines built after 
1961.  
CA Obsolete  CAUTION: Not suitable for use in diesel -powered engines built after 
1959.  
 
B.2 ACEA Categories  
Table B.2: Table showing Current and Obsolete ACEA Categories  
Category  Status  
B1 Current  
B2 Obsolete  
B3 Current  
B4 Current  
B5 Current  
E4 Current  
E6 current  
E7 Current  
E9 Current  
 
 DUS 249-3: 2013  
© UNBS 2013  – All rights reserved  21 
 Bibliography  
SAE J300, Engine oil viscosity classification.  
API 1509, Engine oil licensing and certification system.  
US 249:2 000/ EAS 159, Specification for engine oil,  
ASTM D4485 Standard Specification for Performance of Active API Service Category Engine Oils  
ACEA  Europeam Oil Sequences 2012. Service fill oils for Gasoline engines, light duty diesel engines, 
engines with afte r treatment devces and heavy duty engine oils  
SANS 1517:2005 High Performance engine lubricating oil for diesel engines (for API Service Category CH - 4) 
 
 
 
 DUS 249-3:2013  
© UNBS 2013  – All rights  reserved  23 
 Certification marking  
Products that conform to Uganda standards may be marked with Uganda National  Bureau of Standards 
(UNBS) Certification Mark shown in the figure below.  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations made 
thereunder. This mark can be used only by those licensed under the certification ma rk scheme operated by 
the Uganda National Bureau of Standards and in conjunction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation to a product is an assurance that the goods comply with the 
requirements of that stand ard under a system of supervision, control and testing in accordance with the 
certification mark scheme of the Uganda National Bureau of Standards. UNBS marked products are 
continually checked by UNBS for conformity to that standard.  
Further particulars o f the terms and conditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 US 249-3: 2013    
 
ICS nn.nnn.nn  
Price based on nn pages  
© UNBS 2013 – All rights reserved