DRAFT UGANDA STANDARD  
  DUS 249 -1 
Second Edition  
2013-02-dd 
 
 
 Reference number  
DUS 249 -1: 201 3 
© UNBS 201 3  
  
Engine Oil ——Performance Classifications- Part 1 : General  
 DUS 249-1: 2013 
ii © UNBS 201 3 – All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
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responsible for its correct application  
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Web: www.unbs.go.ug  DUS 249-1:2013 
© UNBS 201 3 – All rights reserved  iii 
 Contents Page 
Foreword ............................................................................................................................................................  iv 
1 Scope  ................................ ................................ ................................ ................................ ...................... 7 
2 Conformance  ................................................................ ............................. Error! Bookmark not defined.  
3 Normative references  ................................ ................................ ............................................................  7 
4 Terms and definitions  ................................ ................................ ...........................................................  7 
5 Symbols (and abbreviated terms)  ................................ ............................ Error! Bookmark not defined.  
6 Clause  ................................ ................................ ................................ ................................ ..................... 8 
6.1 Subclause (level  1) ................................ ................................ ....................Error! Bookmark not defined.  
6.1.1 Subclause (level  2) ................................ ................................ ..............................................................  10 
6.1.2 Subclause (level  2) ................................ ................................ ....................Error! Bookmark not defined.  
6.2 Subclause (level  1) ................................ ................................ ....................Error! Bookmark not defined.  
7 Clause  ................................ ................................ ................................ .........Error! Bookmark not defined.  
8 Special  ................................ ................................ ................................ ........Error! Bookmark not defined.  
Annex A (normative)  Annex title .................................................................................................................... 10 
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 ............... 13 
Bibliography ............................................................................................................Error! Bookmark not defined.  
 DUS 249-1: 2013 
iv © UNBS 201 3 – All rights reserved  
 Foreword 
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Tourism, Trade and 
Industry 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 representatives 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 comments before recommending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council. 
 
This standard is a revision of US 249:2000/EAS 159 and replaces that document in whole. Annexes  
Committee membership DUS 249-1:2013 
© UNBS 201 3 – 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   Engine Oil- Performance Classifications- Part 1: General, which informs about the current 
engine oil categories per classification. 
US 249-2:2013 Engine Oils- Performance Classifcations- Part 2: Specification for Spark Ignition Application 
Engine Oils ,  which  specifies requirements for engine oil as used in gasoline engines and  
US 249-3: 2013 Engine Oil- Performance Classifcation- Part 3: Specification for compression Ignition (diesel) 
engines which specifies requirements for engine oil as used in diesel engines. 
US 249- 4: 2013 Engine Oil- Performance Classification- Part 4: Specification for internal combustion engine 
oils used in four stroke cycle motorcycle gasoline engines and associated drive trains, which specifies 
requirements for engine oil as used gasoline engines for four stroke cycle motorcycles and associated drive 
engines.  
 
US 249- 1, summarizes the different categories of engine oils, for light- duty and heavy- duty internal 
combustion engines used under a variety of operating conditions in automobiles, trucks, vans, buses and off- 
highway farm, industrial and construction equipment. 
This standard outlines the current (non- obsolete) and obsolete performance classifications as applicable to 
API, ILSAC, ACEA and JASO/ ISO Oil sequences 
 DUS 249-1 : 2013  
vii  
 Engine Oil —— Performance Classifications - Part 1 : General  
1 Scope 
This part of the Uganda Standard specifies the requirements for the different categories of engine oils, for 
light- duty and heavy- duty internal combustion engines. 
. 
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. 
US 249-2 Engine Oil- Performance Classification- Part 2- Specification for Spark Ignition Engines 
US 249-3 Engine Oil- Performance Classification- Part 3- Specification for Compression Ignition Engines 
US 249-4  Engine Oil- Performance Classification- Part 4: Specification for internal combustion engine oils 
used in four stroke cycle motorcycle gasoline engines and associated drive trains 
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 (Categories EGB, EGC & EGC)3 Terms and 
definitions and abbreviations 
3.1 Terms and definitions  
For the purposes of this standard, the following terms and definitions shall apply  
3.1.1  
Engine Oil 
A crankcase lubricating liquid with additives that reduces friction or wear or both , between  the moving parts 
within an engine; removes heat, serves as a combustion- gas sealant for piston rings; and reduces potentially 
harmful effects such as rusting, deposit formation, oil oxidation and foaming resulting from engine operation. 
3.1.2   
category 
A designation such as SJ, SL, A1, energy conserving, resource conserving and so forth, for a given level of 
performance in specified engine and bench tests. 
3.1.3  
Classification 
The systematic arrangement into categories in accordance with different levels of performance in specified 
engine and bench tests.  
3.1.4  
light duty engine 
an engine characterized by average speeds, power output and internal temperatures that are generally much 
lower than the potential maximums.  
viii © UNBS 201 3 – All rights reserved  
 3.1.5  
Heavy duty engine 
An enginecharacterized by average speeds, power output, and internal temperatures that are generally close 
to potential maximums. 
 
3.2 Abbreviations 
For the purposes of this standard, the following abbreviations apply: 
3.2.1   
 ACEA  
Association des Constructeurs Européens d'Automobiles (European Automobile Manufacturer’s Association  
3.2.2  
API  
American Petroleum Institute 
3.2.3 
 ASTM  
American Society of Testing and Materials 
3.2.4  
ILSAC 
International Lubricant Standardisation & Approval Committee 
3.2.5  
ISO 
International Organisation for Standardisation 
3.2.6  
JASO  
Japanese Automotive Standards Organisation 
4 Performance classification 
Engine oils are classified by API, ACEA, JASO/ISO and ILSAC and arranged in various categories as 
deter mined by their application .  
Note:  The consumer shall refer to the owner’s or operator’s manual for recommended category of engine 
oil to be used in a specific engine. 
4.1 Engine Oils for Compression ignition (diesel )engines  
The group of engine oils that are intended for use in compression ignition (diesel) engines 
i) API: ―Cx‖ series x = A, B, C, D, E, F, G, H, I, or J  
ii) ACEA:  ―Bn‖ series n = 1, 2,3 or 4 or 5 as used for light duty engines 
iii) ACEA: ―En‖ series n = 4, ,6,7, or 9 as used for heavy duty engines 
iv) ACEA: ―Cn‖ series n= 1,2 ,3,4 catalyst compatible oils as used for gasoline and diesel engines with 
after treatment devices.  
4.1.1  The current (non-obsolete) categories are: API CH-4, CI- 4, CJ- 4 and/or ACEA:  B1, B3, B4, B5, 
E4, E6, E7, E9, C1, C2, C3, C 4.  
© UNBS 201 3 – All rights reserved  ix 
 4.1.2  Engine oils for compression ignition engines   shall have a performance not lower than that defined by 
API CH-4 and ACEA B1, C1 or E4, and shall meet  specifications in US 249- 3. 
4.2 Engine Oils for Spark ignition (Petrol) Engin es 
The group of engine oils that are intended for use in automotive gasoline engine application.  
i. API ―Sx‖ series x = A, B, C, D, E, F, G, H, , J, L, M or N  
ii. ACEA ―Ax‖ series x= 1, 2, 3  or 5  
iii. ACEA ―Cx‖ series x= 1, 2, 3, 4  catalyst compatible oils as used for gasoline and diesel engines with after 
treatment devices.  
iv. ILSAC GF-x series, x= 1, 2, 3, 4,and 5 categories 
4.2.1  The current (non-obsolete) categories are: API: SJ, SL, SM, SN, ILSAC GF- 5, and ACEA: A1, A3, , 
A5, C1, C2, C3, C4 ,  
4.2.2   Engine oils for spark ignition (petrol) engines shall have a performance not lower than that defined  by 
API SJ, GF- 5 and ACEA A1 or ACEA C1 , and shall meet specifications in US 249- 2. 
4.3 Four -stroke Motorcycle engine applications. 
The group of engine oils that are intended for use in four-stroke motorcycle engines .  
JASO ―Mx‖ x = A1, A2, and B or the equivalent ISO EMA1, EMA2 and EMB respectively  
4.3.1  Current (non-obsolete) categories are API: SJ, SL, SM, SN, GF-5 and JASO: MA1, MA2, MB or their 
ISO equivalent EMA1, EMA2 and EMB. 
4.3.2 Engine oils for four stroke motorcycle engine applications shall have a performance equivalent to that 
specified in DUS 249- 4. 
4. 4 Two-stroke Motorcycle engine applications. 
The group of engine oils that are intended primarily for use in two-stroke motorcycle engines .  
JASO ―Fx‖  X = A, B, C or D  
Or the equivalent ISO EGA, EGB, EGC and EGD respectively. 
Note: Category FA is currently Obsolete.  
4.4.1  The current (non-obsolete) categories are: JASO: FB, FC and FD or equivalent ISO EGB, EGC and 
EGD.  
x © UNBS 201 3 – All rights reserved  
 4.4.2  Engine oils for two stroke motorcycle engine application shall 
have a performance not lower than that specified in  ISO 13738. Annex A 
(informative)  
 
Current (non-obsolete)and Obsolete Engine Oil Categories 
A.1 Current (non-obsolete) and Obsolete Engine Oil for Spark Ignition Engine 
Apllication 
A.1.1 API Categories 
Current and previous API service categories are listed below. For automotive gasoline engine , the latest API 
service category includes performance properties of each earlier category and can be used to service older 
engines where earlier category oils are recommended. 
Table A.1: Table showing current and Obsolete API engine oil categories 
Category  Status  Service  
SN Current  Introduced in October 2010 for 2011 and older vehicles, designed to 
provide improved high temperature  deposit protection for pistons, more 
stringent sludge control, and seal compatibility. API SN with Resource  
conserving matches ILSAC GF -5 by combining API SN performance with 
improved fuel economy, turbocharger  protection, emi ssion control system 
compatibility, and protection of engines operating on ethanol -containing  
fuels up to E85.  
SM Current  For 2010 and older automotive engines.  
SL Current  For 2004 and older automotive engines.  
SJ Current  For 2001 and older automotive e ngines.  
SH Obsolete   
SG Obsolete   
SF Obsolete   
SE Obsolete  CAUTION: Not suitable for use in gasoline -powered automotive engines built after 
1979.  
SD Obsolete  CAUTION: Not  suitable for use in gasoline -powered automotive engines built after 
1971. Use i n more modernengines may cause unsatisfactory performance or 
equipment harm.  
SC Obsolete  CAUTION: Not suitable for use in gasoline -powered automotive engines built after 
1967. Use in more modern  engines may cause unsatisfactory performance or 
equipment ha rm. 
SB Obsolete  CAUTION: Not suitable for use in gasoline -powered automotive engines built after 
1951. Use in more modern  engines may cause unsatisfactory performance or 
equipment harm.  
SA Obsolete  CAUTION: Contains no additives. Not suitable for use i n gasoline -powered 
automotive engines built after  1930. Use in more modern engines may cause 
unsatisfactory performance or equipment harm.  
Note:   C ategories indicated as obsolete do not meet requirements for this standard or any other related Uganda stan dard on Engine Oil   
© UNBS 201 3 – All rights reserved  xi 
  
A.1.2  ILSAC Categories 
Table A.2: Table showing current (non -obsolete) and Obsolete ILSAC engine Oil Categories 
Category  Status  Service  
GF-5 Current  Introduced in October 2010 for 2011 
and older vehicles, designed to 
provide improve d high temperature  
deposit protection for pistons and 
turbochargers, more stringent sludge 
control, improved fuel economy,  
enhanced emission control system 
compatibility, seal compatibility, and 
protection of engines operating on  
ethanol -containing fuels u p to E85.  
GF-4 Obsolete  Use GF -5 where GF -4 is 
recommended.  
GF-3 Obsolete  Use GF -5 where GF -3 is 
recommended.  
GF-2 Obsolete  Use GF -5 where GF -2 is 
recommended.  
GF-1 Obsolete  Use GF -5 where GF -1 is 
recommended.  
 
A.1.3 ACEA Categories 
Table A.3: Table showing current ( non- obsolete) and Obsolete ACEA engine Oil Categories 
Category  Status  
A1 Current  
A2 Obsolete  
A3 Current  
A5 Current  
C1 Current  
C2 Current  
C3 Current  
C4 Current  
 
A.2 Current (non-obsolete) and Obsolete Engine Oil for compression ignition engine 
application 
A.2.1 API Categories 
 Table A.4: Table showing current (non-obsolete) 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  
xii © UNBS 201 3 – All rights reserved  
 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 durability and/or drain interval. CJ -4 oils are especially 
effective at sustaining  emission control system durability where 
particulate filters and other advanced aftertreatment system s are  
used. Optimum protection is provided for control of catalyst 
poisoning, 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 2002. 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 ranging 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 C G-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. Was 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. Was used  in place of CD and CE oils.  
CF-2 Obsolete  Introduced in 1994. For severe duty, two -stroke -cycle engines Was 
used in place of CD -II oils.  
CF Obsolete  Introduced in 1994. For off -road, indirect -injected and other diesel 
engines including those using fuel with  over 0.5% weight sulfur. Was 
used in place of CD oils.  
CE Obsolete  Introduced in 1985. For high -speed, four -stroke, naturally aspira ted 
and turbocharged engines. Was 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 suit able 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.   
© UNBS 201 3 – All rights reserved  xiii 
  
A.2.2 ACEA Categories 
Table A.5: Table showing Current (non -obsolete) and Obsolete ACEA Categories 
Category  Status  
B1 Current  
B2 Obsolete  
B3 Current  
B4 Current  
B5 Current  
E4 Current  
E6 current  
E7 Current  
E9 Current  
C1 Current  
C2 Current  
C3 Current  
C4 Current  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
xiv © UNBS 201 3 – All rights reserved  
 Bibliography 
US 249:2000/ EAS 159, Specification for engine oil 
ASTM D4485 Standard Specification for Performance Active API Service Category Engine Oils 
ACEA European Oil Sequences, 2012 
ISO 6743-15 Lubricants, industrial oils and related products (class L) — Classification — Part 15: Family E 
(Internal combustion engine oils) 
 
            API Engine Oil Guide 2010 (http://www.api.org)  
© UNBS 201 3 – All rights reserved  xv 
                             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.  
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thereunder. This mark can be used only by those licensed under the certification mark 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 standard 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 of the terms and conditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 DUS 249-1: 2013    
 
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