••••••••

Fuel Economy, MPG

19.0

2.8

18.0

2.7

19%
17.0

2.6
WITHOUT
SI-1

16.0

2.5
15.0
2.40

SI-1 INJECTOR CLEANUPAVERAGE 98.5% CLEAN
2.74

AFTER
SI-1

Injector Flow, grams/sec

SI-1 Fuel Economy Improvement

1000 2000 3000 4000 5000 6000

Miles
Figure 2: The deterioration of fuel economy and injector
flow with subsequent restoration using one bottle of SI-1.

CLEAN

ENTIRE INTAKE SYSTEM CLEANLINESS
Unstable hydrocarbon mixtures present in today's fuels
along with detergent additives added to gasoline bymany refiners in order to claim the ability to clean fuelinjectors has created an entirely new problem - intake
system deposits. These fuel components and additives
decompose readily at the higher temperatures of theintake valves. This results in sticky deposits which
restrict the intake air and cause fuel to condense on
their surface, making the mixture too lean to provide
proper acceleration. Red Line SI-1 not only prevents
these deposits, but the synthetic oils and detergentscan actually wash these deposits away. Figure 4 showsa set of valves which have used low levels of SI-1 (15oz/100 gal) on a regular basis compared to a set ofvalves from an engine operated on detergent unleaded.
Figure 5 shows how intake deposits can significantly
reduce power and performance in modern engines.

Detergent
Unleaded

Fuel Injector Deposits Reduce
Wide Open Throttle Acceleration

2.780%

2.65% LOSS
85%
90%

2.510% LOSS

100%

2.4100%START OF CLEANUPAFTER 1 TREATMENT
Figure 1: The use of one 15 oz. of SI-1 can clean fuelinjectors to nearly 100% efficiency. GM 3.8L V-6.
2.393%

IMPROVES PERFORMANCE AND FUEL ECONOMY
Fouled injector tips can provide poor fuel spraypatterns, causing incomplete combustion which resultsin poor performance and fuel economy. Modern microprocessor-controlled feedback systems compound theproblem by sensing an average rich condition, leaningout all cylinders to the point of lean misfire. Figure 2
shows how cleaning the fuel injectors in a 3.8L V-6 withRed Line SI-1 restored fuel economy - an increase of
19%. Regular use of SI-1 will keep optimum fueleconomy and performance. Figure 2 shows how rapidly
deposits can form and how Red Line SI-1 effectively
cleans up deposits on fuel injectors, restoring performance, fuel economy, and emissions compliance.
Figure 3 shows the significant effect fuel injector

Acceleration Time, Seconds

12% CHANGE

GM 3.8L V-612%

100-55 MPH
8Treatedwith SI-1

21%
0-45 MPH

619%
0-35 MPH
4010203040% Average Injector Flow Reduction

Figure 4Figure 3: By reducing injector plugging, SI-1 canimprove acceleration times as much as 20%.
deposits have on acceleration. Unequal plugging isindicated by the upper line of each set and the lower
line indicates the effects if injectors are equallyplugged. In a GM 3.8L V-6, 0 to 45 MPH acceleration
times can increase by as much as 21% and fueleconomy can be reduced as much as 20% when injectors become unequally plugged. Red Line SI-1 rapidly
cleans these plugged injectors to like-new condition,
restoring the power of the engine and eliminating
hesitation and stumbling. SI-1 works equally well on thedeposits created in higher temperature turbochargedengines.

Effect of Intake Valve Deposits
on Power, Emissions, and Fuel Economy1.8 L CARBURETED JAPANESE ENGINE - CITY DRIVING CYCLE
20% Restriction (18,000 Mi)

50% Restriction (30,000 Mi)

35
30% Change

SUMMARY
Cleans injectors and carbs to like-new efficiency
Prevents fuel system rust
Cleans intake valve deposits
Lubricates upper cylinder and valves
Reduces pre-ignition and run-on
Cleans emission control systems
Stabilizes gasoline and prevents carburetor icing
Safe for all gasoline vehicles

CLEANS INJECTORS AND CARBURETORSPowerful thermally-stable detergents contained in Red
Line SI-1 are capable of cleaning fuel injectors andcarburetors to nearly 100% efficiency. Red Line'sdetergents are so concentrated that this degree ofcleanliness can be achieved with one treatment.
Figure 1 shows the cleaning ability of SI-1's hightemperature detergents. Injector plugging problems
can be manifest as sluggishness, hesitation, poor
idling, and poor fuel economy. Use SI-1 instead oftaking the car in for a shop injector cleanup. SI-1 isjust as effective as pressurized solvent treatments at afraction of the cost and trouble. Red Line SI-1 is also
very effective at cleaning carburetor deposits which cancause poor performance and run-on.

Injector Flow Rate, g/sec

RED LINE SI-1™ INJECTOR & VALVE DETERGENT
contains the most powerful high-temperature detergent
available to clean gasoline fuel injectors, carburetors,
and intake valves. SI-1 can clean injectors to nearly
100% efficiency with one application and SI-1 will
typically provide a 90-99% reduction in intake valve
deposits compared to detergent unleaded gasoline,
improving performance and fuel economy considerably.
Clean air regulations and the change from leaded fuelto unleaded has left refiners short of adequate octane
capacity, which forces them to use cracking andoxygenates such as alcohols and MTBE (methyl tertiarybutyl ether) to supplement octane. This has created atremendous problem of coking of fuel injector tips andintake valve deposits which can cause problems within
1000 miles of driving. Alcohol-containing fuels havebeen demonstrated to cause between 3 to 5 times more
deposits on valves than fuels without such oxygenates.
Modern electronic engine technology has enabled auto
manufactures to provide performance while meetingemissions requirements by using computers which keep
the engine operating at the lean limit of combustion.
Unfortunately, fast burn/lean burn engines are muchless tolerant of deposits than were older engines which
operated at richer mixtures. Intake valve or fuel injector
deposits can alter the air/fuel mixture in individual cylinders, causing a lean misfire. Since the electronic
sensors sense an average signal in the exhaust, thiscauses a further leaning to the point of significant
hesitation and stumbling, especially while accelerating.
Many refiners are not willing treat all their fuel with hightemperature detergents to clean dirty injectors, butinstead use larger doses of less costly carburetor detergents, which can partially clean simple cases, but thepoor stability of these detergents cause another, equallyserious problem - they break down and form deposits
on valves, causing a restriction of intake air and poordriveability. Many other fuel additives try to achievecleanup using solvents which can clean in a very
concentrated form, but provide very little effectivenesswhen diluted in a fuel tank. Solvents have the potential
drawback of causing swelling and degradation of seals
and hoses in the fuel system. Red Line SI-1 uses
surface active chemistry which cleans effectively andsafely.

2520

The range shown is the variability
between low-rpm and high-rpm operation.

PowerReduction

Power
Reduction
COIncrease

15
105

Fuel Economy
Reduction

0Figure 5

Fuel Economy
Reduction

COIncrease

CLEANS INTAKE VALVESRed Line SI-1 is effective in a wide variety of fuels andengines. Figure 6 shows the reduction in intake valve
deposits evaluated in many different engines, includingturbocharged engines which see much higher intake
temperatures. Figure 7 demonstrates how the detergents and synthetic oils in Red Line SI-1 can wash
away existing intake valve deposits when used on aregular basis. This will allow the engine to breathe
better, restoring power and eliminating hesitation.

90

CLEAN INJECTORS REDUCE EMISSIONS

90

6USE DIRECTIONS
Initially use one bottle to a fuel tank and fill with fuelto achieve rapid cleanup. The treatment can be
reduced on subsequent fillups to 1/3-1/6 oz pergallon (one bottle to 50-100 gallons) to provide
continual injector and valve cleanliness. The detergents and antioxidants help prevent the formation ofgum and varnish in gasoline, and the rust inhibitors
prevent corrosion. Red Line SI-1 will not damage fuelsystem components and the combustion by-products
do not cause corrosion of engine bearings as canmany fuel additives. Red Line SI-1 is available in 15
ounce bottles, 5 gallon pails, and 55 gallon drums.
Similar chemistry is available in a 6 ounce, lessconcentrated version called SI-2 Injector & Valve
Detergent.

5DESIGNED FOR PERFORMANCE

Ford 2.3l Premium - 5,000 Mi

91

Chrys 2.2l T Premium - 5,000 Mi
74

Chevy 4.3l Regular-10,000 Mi

69

GM 2.8l Premium-20,000 Mi

81

Chevy 4.3l Premium - 10,000 Mi

92

Nissan 3.0l Premium-20,000 Mi
Ford 1.9l Prem02020,000 Mi
40

Hydrocarbon Emissions
Grams/Mile

SI-1 Keeps Intake Valves Clean
In A Variety Of Engines
BMW 1.8l Premium - 5,000 Mi

356080INTAKE VALVE CLEANUP
4Grams/valve

BeforeSI-1321One
Treatment
SI-1

Figure 7: SI-1 can help reduce air pollutants by cleaning
the intake system and emission control devices.

100Figure 6: Demonstrates the effectiveness of SI-1 toprovide intake valve cleanliness in a variety of engines.

DETERGENTUNLEADED

40% Reduction in Intake Valve Deposits

3CLEANS EMISSION CONTROLS
Dirty injectors and carburetors can cause significantly
greater exhaust emissions than allowed by state andfederal requirements. Red Line SI-1 can help reducethese emissions by cleaning the carburetor, injectors
and the emission control system. The graph below
demonstrates the ability of Red Line SI-1 to reducehydrocarbon emissions in a GM 3.8L V-6. Carbon
Monoxide emissions experienced a similar reduction.
Oxides of nitrogen were also reduced, but to a lesser
extent. The detergents used survive the combustion
process and clean the PCV valve and the EGR port aswell as cleaning deposits in the combustion chamber.

TREATEDWITH SI-1

2PREVENTS RUST
The major problem with water in fuel is the rusting of
the fuel system which will occur. Even the slightest
rust on the injection metering valves can require a newmetering system or injectors. Red Line SI-1 will
disperse small amounts of water such as condensationwater into the fuel. The rust inhibitors contained in SI-1
will prevent rust even in the presence of large amountsof water as demonstrated in Figure 8, a 24 hour rust
test compared with untreated gasoline.

Red Line Synthetic Oil Corporation is the leader inlubricant and fuel system chemistry. Red Line sets
the standards for equipment durability and increasedperformance. Red Line manufactures a full line ofautomotive products which are designed to provide
noticeable improvements in performance. Other RedLine products are:WaterWetter® SuperCoolant
Diesel Fuel Catalyst
85 Plus Diesel Fuel Additive - with Cetane Booster
Fuel System Antifreeze and Water Remover
Lead SubstituteSI-2 Injector & Valve Detergent
Motor Oils - 5W20, 5W30, 10W30, 5W40, 10W40,15W50, 20W50
Diesel Engine Oil -15W40
Race Oils - SAE 5, 10, 20, 30, 40, 50, 60, 70
High-Performance Two-cycle LubricantsGear Oils - LightWeight, 75W90, 75W140
75W90NS, 75W140NS, 80W140, ShockProof™
MTL- Manual Transmission/Transaxle Lube, MT-90
ATF - Synthetic Dexron II / Mercon , Racing ATF
D4 ATF, C+ ATF for Chrysler/Jeep, High-Temp ATF
CV-2 CV-Joint and Wheel Bearing Grease
Assembly Lube
Synthetic Compressor Lubricants

RED LINE

®

SI-1

™

COMPLETE
FUEL SYSTEM
CLEANERTECHNICALINFORMATION

For further information please contact:
100

20000

40000

60000

Red Line Synthetic Oil Corp.

80000

Miles
Figure 7: Shows the ability of SI-1 to cleanup existing
deposits on intake valves.

© 1989, 1993, 2003 Red Line Synthetic Oil Corp.

6100 Egret Court,
Benicia, CA 94510 USA(707) 745-6100 www.redlineoil.com