The 2003 Mercedes-Benz SLK-Class runs on premium unleaded (required).
The 2003 Chevrolet Suburban runs on flex-fuel (FFV).
The 2003 Ford Explorer runs on flex-fuel (FFV).
The 2003 GMC Yukon-XL runs on flex-fuel (FFV).
The 2003 Chrysler Town-AND-Country runs on flex-fuel (unleaded/E85).
The 2003 Chevrolet Malibu runs on regular unleaded.
The 2003 Volkswagen Jetta runs on regular unleaded.
The 2003 Ford Expedition runs on regular unleaded.
The 2003 Buick Regal runs on regular unleaded.
The 2003 Dodge Durango runs on regular unleaded.
The 2003 Ford Mustang runs on regular unleaded.
The 2003 GMC Savana runs on regular unleaded.
The 2003 Cadillac CTS runs on regular unleaded.