is my 2003 chevy tahoe able to use E-85 fuel?

Answer 1

Talk to a GM dealership. I believe the only difference between a flex fuel vehicle (one that will operate on both E-85 and regular unleaded) and a vehicle that runs on just regular unleaded is the on board computer chip. The computer controls the oxygen and fuel mixture and the newer vehicle's have a computer chip that will adjust automatically depending on the type of fuel used. I believe you may be able to change the computer chip, but talk to GM first.

Answer 2

The anser is no.Only newer tahoes that have E-85 badge on the back of the tahoe can use that fuel.Also the factory uses a green fuel cap to help the owner know they can use the E-85 fuel.

Answer 3

E85 Compatible Vehicles
The only E85 compatible vehicles produced by General Motors are:

• 2000-2002 S-Series pickups with 2.2L (VIN 5- RPO L43)

• 2002-2005 full-size pickups and utilities with 5.3L (VIN Z -- L59)

• 2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe with 5.3L (VIN Z -- RPO L59)

• 2006 Chevrolet Impala, Monte Carlo with 3.5L (VIN K -- RPO LZE)

• 2006 GMC Sierra, Yukon, Yukon XL with 5.3L (VIN Z -- RPO L59)

• 2007 Chevrolet Avalanche, Suburban, Tahoe with 5.3L (VINs 0, 3 -- RPOs LMG, LC9)

• 2007 GMC Yukon, Yukon XL with 5.3L (VINs 0, 3 -- RPOs LMG, LC9)

• 2007 Chevrolet Impala, Monte Carlo with 3.5L (VIN K -- RPO LZE)

• 2007 Saturn Relay, Buick Terraza, Chevrolet Uplander, Pontiac Montana SV6 (Canada Only) with 3.9L (VIN W -- RPO LGD)

Answer 4

check owners manual. It should tell you the best gas to use.

Answer 5

only if the 8th digit on your VIN is a "Z"

Best answer, heck yeah!