Gas Type by Car: Regular, Premium, Diesel or E85 / Dodge / StratusDodge Stratus Gas type by year YearGas type2006Regular (flex-fuel E85 engine available)2005Depends on engine: regular or premium (flex-fuel E85 engine available)2004Depends on engine: regular or premium (flex-fuel E85 engine available)2003Regular (flex-fuel E85 engine available)2002Regular2001Regular2000Regular Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov).