The USA 2.5X model was certified PZEV emissions (Rated instead ), with a badge attached to the rear of the vehicle on the bottom right-hand side of the tailgate. All other USA models were certified LEV2. The PZEV Forester was available for sale in all fifty states, unlike other manufacturers who only sold PZEV-certified vehicles in states that had adopted California emission standards. The engine without the turbo runs on unleaded gasoline rated at 87 octane, and the turbo engine (EJ255) requires premium fuel rated minimum 91 octane.