Gas Type by Car: Regular, Premium, Diesel or E85 / Pontiac / VibePontiac Vibe Gas type by year YearGas type2010Regular2009Regular2008Regular2007Regular2006Depends on engine: regular or premium2005Depends on engine: regular or premium2004Depends on engine: regular or premium2003Depends on engine: regular or premium Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov).