2005 / 2006 E85 GMC YUKON 1500 Series
On Select 2WD, 4 WD and AWD Models
8th Character in VIN = Z
8 Cylinder
5.3 L
Automatic
Runs on E85 Fuel
E85 is 85% Ethanol and 15% petroleum
E85 GMC YUKON 2005 - 2006
Select GMC Yukon's in the 2 wheel drive , 4 wheel drive and all wheel drive models can use E85 fuel These are the 8 Cylinder with automatic transmissions. Gas mileage varies.
ONLY those with the letter "Z" as the 8th Character in the VIN is E85 ready ..check your VIN numbers for verification. The 2006 Yukon should have a yellow gas cap.