2012 Subaru Forester Owner's Manual - Page 521

& Fuel: GAS STATION REFERENCE & Fuel capacity: 16.9 US gal (64 liters, 14.1 Imp gal) ! Non-turbo models Use only unleaded gasoline with an octane rating of 87 AKI (90 RON) or higher. ! Turbo models Use premium unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher. If premium unleaded gasoline with an octane rating of 91 AKI (95 RON) is not available, regular unleaded gasoline with octane rating of 87 AKI (90 RON) or higher may be temporarily used. For optimum engine performance and driveability, it is required that you use premium grade unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher. & Engine oil: Use only the following oils. . ILSAC GF-4 or GF-5, which can be identified with the ILSAC certification mark (Starburst mark) . or API classification SN or SM with the words "ENERGY CONSERVING" or "RESOURCE CONSERVING" For the complete viscosity requirements, refer to "Engine oil" F12-5. & Engine oil capacity: Non-turbo models: 5.5 US qt (5.2 liters, 4.6 Imp qt) Turbo models: 4.4 US qt (4.2 liters, 3.7 Imp qt) & Fuel octane rating: This octane rating is the average of the Research Octane and Motor Octane numbers and is commonly referred to as the Anti Knock Index (AKI). Refer to "Fuel octane rating" F7-2. & Cold tire pressure: Refer to "Tires" F12-10.