The 2004 Chevrolet Suburban runs on flex-fuel (FFV).
The 2004 Chevrolet Express runs on regular unleaded.
The 2004 Chevrolet Impala runs on regular unleaded.
The 2004 Chevrolet Colorado runs on regular unleaded.
The 2004 Chevrolet Tahoe runs on regular unleaded.
The 2004 Chevrolet Malibu runs on regular unleaded.
The 2004 Chevrolet Corvette runs on premium unleaded (required).
The 2004 Chevrolet Express-Cargo runs on regular unleaded.
The 2004 Chevrolet Silverado-1500 runs on regular unleaded.
The 2004 Chevrolet Express has a 4-speed automatic.
The 2004 Chevrolet Impala has a 4-speed automatic.
The 2004 Chevrolet Suburban has a 4-speed automatic.