05-06-04-035D Service Bulletin/Repair Instructions

File in Section:

Bulletin No.:
Service Bulletin
Date:
06 - Engine

05-06-04-035D

May, 2014
INFORMATION

Subject:
Usage of E85 Fuel in GM Vehicles
Models:
2014 and Prior GM Passenger Cars and Trucks

Vehicles Equipped with E85 Capability
This bulletin has been revised to add 2008-2014 Model Year vehicles, identify those vehicles

and engines with E85 capability and add a graphic for the E85 yellow gas cap. Please discard

Corporate Bulletin Number 05-06-04-035C.
Customer Interest in E85 Fuel

Vehicles manufactured for ethanol use are commonly

called flexible fuel vehicles (FFVs) and include a wide

range of vehicles, such as compact, midsize, sport

utility and pickup trucks.

As the retail price of gasoline increases, some

customers at various refueling stations are seeing

substantial price differentials between regular unleaded

gasoline and E85, where E85 is selling for significantly

less than regular unleaded gasoline. The result of this

is that some customers have inquired if they are able to

use E85 fuel in non-E85 compatible vehicles.

Only FFVs designed for use with E85 should use E85

blended fuel. E85 compatibility is designated for

vehicles that are certified to run on a blend of up to 85%

ethanol and 15% gasoline. All Model Year 2011 and

older non-FFV gasoline vehicles are designed to run on

fuel that contains no more than 10% ethanol. Starting in

Model Year 2012, GM non-FFV United States vehicles

are capable of using gasoline with up to 15% ethanol.

These requirements are explained in the vehicle Owner

Manual.

Using fuel containing greater than 10% or 15% ethanol,

as indicated in the Owner Manual in non-E85

designated vehicles can cause driveability issues,

malfunction indicator lamp (MIL) illumination, engine

damage, increased fuel system corrosion and various

driver information center (DIC) messages may also

display.

Diesel engines are not E85 compatible.
Copyright 2014 General Motors LLC. All Rights Reserved.
Using E85 Fuels in Non-Compatible

Vehicles

Fueling non–E85 designated vehicles with E85, or with

fuels where the concentration of ethanol exceeds the

Owner Manual indicated maximum of 10% or 15%, may

result in one or more of the following:

• Lean driveability concerns such as hesitation, sag

and/or possible stalling.

• MIL illumination due to the setting of a diagnostic

trouble code (DTC).

• Fuel Trim DTC P0171 and/or P0174 may set.

• Misfire DTC P0300 may set.

• Heated oxygen sensor (HO2S) or oxygen sensor

(O2S) DTCs may set.

• A Traction Control, Stability System or ABS lamp

may illuminate or a message may display in the

DIC (if equipped).

• Harsh and/or firm transmission shifts due to the

transmission defaulting to maximum line pressure.

• Fuel system component corrosion and/or engine

mechanical component degradation.

⇒ If the Service Personnel suspects that a non–E85

designated vehicle brought in for service has been

fueled with E85, the fuel in the vehicle's tank should

be checked for alcohol content using Special Tool

J-44175-A Fuel Composition Tester, or CH-44175-A

Fuel Composition Tester. If the ethanol content

exceeds the Owner Manual indicated maximum of

10% or 15%, the fuel should be drained and the

vehicle refilled with gasoline, preferably one of the

Top Tier brands. A list of marketers providing Top

Tier Detergent Gasoline can be found at this

website: www.toptiergas.com
Page 2
May, 2014
E85 Compatible Vehicles
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3819684
General Motors started putting yellow gas caps on E85

Flex Fuel Vehicles (FFVs) as of Model Year 2006.

The following is a list of E85 compatible vehicles

produced by General Motors:

• 2000–2002 S-Series pickups with 2.2L —

RPO L43

• 2002–2005 Fullsize Pickups and Utilities with 5.3L

— RPO L59

• 2006 Avalanche, Silverado, Suburban, Tahoe with

5.3L — RPO L59

• 2006 Sierra, Yukon, Yukon XL with 5.3L —

RPO L59

• 2006–2007 Impala, Monte Carlo with 3.5L —

RPO LZE

• 2007 Avalanche, Suburban, Tahoe with 5.3L —

RPO LMG, LC9

• 2007 Express, Savana with 5.3L — RPO L59

• 2007 Yukon, Yukon XL with 5.3L — RPO

LMG, LC9

• 2007 Relay, Terraza, Uplander, Montana SV6

(Canada Only) with 3.9L — RPO LGD

• 2008 Impala with 3.5L — RPO LZE, 3.9L —

RPO LZG

• 2008 Montana SV6, Uplander with 3.9L —

RPO LGD

• 2008 Express, Savana with 5.3L — RPO LMF

• 2008 Avalanche, Suburban, Yukon XL, Silverado,

Sierra with 5.3L — RPO LC9

• 2008 Avalanche, Suburban, Tahoe, Yukon, Yukon

XL, Silverado Sierra with 5.3L — RPO LMG

• 2009 HHR with 2.2L — RPO LE8, 2.4L —

RPO LE9

• 2009 Impala, Malibu, G6 with 3.5L — RPO LZE
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Bulletin No.: 05-06-04-035D

2009 Impala, Lucerne with 3.9L — RPO LGD

2009 Express, Savana with 5.3L — RPO LMF

2009 Avalanche, Suburban, Yukon, Yukon XL,

Silverado, Sierra, Tahoe with 5.3L — RPO LC9 or

5.3L — RPO LMG

2009 Escalade, Escalade ESV, Escalade EXT,

Yukon Denali, Yukon XL Denali, Sierra Denali,

Sierra SLT, Silverado LTZ, Tahoe LTZ, Hummer

H2, H2 SUT with 6.2L — RPO L9H

2010 Malibu, HHR with 2.4L — RPO LE9

2010 Impala, Malibu with 3.5L — RPO LZE

2010 Impala, Lucerne with 3.9L — RPO LGD

2010 Express, Savana, Silverado, Sierra with 4.8L

— RPO L20

2010 Silverado, Suburban, Tahoe, Yukon, Yukon

XL with 5.3L — RPO LC9

2010 Express, Savana with 5.3L — RPO LMF

2010 Express (Passenger), Savana (Passenger)

with 6.0L — RPO L96

2010 Avalanche, Suburban, Tahoe, Yukon, Yukon

XL, Silverado, Sierra with 5.3L — RPO LMG

2010 Escalade, Escalade ESV, Escalade EXT,

Yukon Denali, Yukon XL Denali with 6.2L —

RPO L94

2010 Silverado LT, Silverado LTZ, Sierra Denali,

Sierra SLE, Sierra SLT, Yukon XL with 6.2L —

RPO L9H

2011 HHR with 2.2L — RPO LE8

2011 HHR, Malibu with 2.4L — RPO LE9

2011 Impala with 3.5L — RPO LZE

2011 Impala, Lucerne with 3.9L — RPO LGD

2011 SRX with 3.0L — RPO LF1

2011 Equinox, Terrain with 3.0L — RPO LFW

2011 Express, Savana, Silverado, Sierra with 4.8L

— RPO L20

2011 Escalade, Escalade ESV, Escalade EXT,

Yukon Denali, Yukon XL Denali with 6.2L —

RPO L94

2011 Express, Savana, Silverado HD, Sierra HD,

Suburban, Yukon XL with 6.0L — RPO L96

2011 Silverado LT, Silverado LTZ, Sierra SLE,

Sierra SLT with 6.2L — RPO L9H

2011 Avalanche, Silverado, Suburban, Sierra,

Yukon XL with 5.3L — RPO LC9

2011 Express, Savana with 5.3L — RPO LMF

2011 Avalanche, Silverado, Suburban, Tahoe,

Sierra, Yukon, Yukon XL with 5.3L — RPO LMG

2012 Malibu with 2.4L — RPO LE9

2012 Regal, Verano with 2.4L — RPO LEA

2012 Regal CXL with 2.0L — RPO LHU

2012 Caprice PPV, Impala, Impala Police Vehicle,

LaCrosse with 3.6L — RPO LFX

2012 Caprice PPV with 6.0L — RPO L77

2012 Equinox, Terrain with 2.4L — RPO LEA or

3.0L — RPO LFW

2012 SRX with 3.6L — RPO LFX
Bulletin No.: 05-06-04-035D

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May, 2014
2012 Express, Silverado, Savana, Sierra, Sierra

SL, Sierra SLE with 4.8L — RPO L20

2012 Silverado, Silverado LS, Silverado LT,

Suburban, Sierra, Sierra SL, Sierra SLE, Yukon

XL with 5.3L — RPO LC9

2012 Express, Savana, with 5.3L — RPO LMF

2012 Avalanche, Silverado, Silverado LT,

Silverado LTZ, Suburban, Tahoe, Sierra, Sierra

SLE, Sierra SLT, Yukon, Yukon XL with 5.3L

— LMG

2012 Express, Silverado HD, Suburban, Savana,

Sierra HD, Yukon XL with 6.0L — L96

2012 Escalade, Escalade ESV, Escalade EXT,

Yukon Denali, Yukon XL Denali with 6.2L — L94

2012 Silverado LT, Silverado LTZ, Sierra SLE,

Sierra SLT with 6.2L — RPO L9H

2013 Regal CXL, Regal GS, Verano with 2.0L —

RPO LHU

2013 Verano with 2.4L — RPO LEA

2013 ATS Sedan, Caprice PPV, Impala, Impala

Police Vehicle, LaCrosse with 3.6L — RPO LFX

2013 Caprice PPV with 6.0L — RPO L77

2013 Captiva Sport (Fleet Only), Equinox, Terrain

with 2.4L — RPO LEA

2013 Captiva Sport (Fleet Only) with 3.0L — LFW

2013 Equinox, SRX, Terrain with 3.6L —

RPO LFX

2013 Express, Silverado, Savana, Sierra, Sierra

SL, Sierra SLE with 4.8L — L20

2013 Silverado, Silverado LS, Silverado LT,

Suburban, Sierra, Sierra SL, Sierra SLE, Yukon

XL with 5.3L — RPO LC9
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Page 3

2013 Express, Savana with 5.3L — RPO LMF

2013 Avalanche, Silverado, Silverado LT,

Silverado LTZ, Suburban, Tahoe, Sierra, Sierra

SLE, Sierra SLT, Yukon, Yukon XL with 5.3L —

RPO LMG

2013 Express, Silverado HD, Suburban, Savana,

Sierra HD, Yukon XL with 6.0L — RPO L96

2013 Escalade, Escalade ESV, Escalade EXT,

Yukon Denali, Yukon XL Denali with 6.2L —

RPO L94

2013 Silverado LT, Silverado LTZ, Sierra SLE,

Sierra SLT with 6.2L — RPO L9H

2014 Caprice PPV, Impala, Impala Limited (Fleet

Only), Impala Limited PPV, LaCrosse with 3.6L —

RPO LFX

2014 Caprice PPV with 6.0L — RPO L77

2014 Captiva Sport (Fleet Only), Equinox, Terrain

with 2.4L — RPO LEA

2014 Equinox, Terrain with 3.6L — RPO LFX

2014 Express, Savana with 4.8L — RPO L20

2014 Suburban, Yukon XL with 5.3L — RPO LC9

2014 Express, Savana with 5.3L — RPO LMF

2014 Suburban, Tahoe, Yukon, Yukon XL with

5.3L — LMG

2014 Express, Silverado HD, Savana, Sierra HD

with 6.0L — RPO L96

2014 Escalade, Escalade ESV, Yukon Denali,

Yukon XL Denali with 6.2L — RPO L94

2014 Silverado, Sierra with 4.3L — RPO LV3 or

5.3L — RPO L83
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these

technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper

service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a

job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your

vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the

information.
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