2013 Subaru Impreza Owner's Manual - Page 463

& Fuel: & Fuel octane rating: GAS STATION REFERENCE & Engine oil: Use only the following oils. . API classification SM or SN with the words "ENERGY CONSERVING" or "RESOURCE CONSERVING" . or ILSAC GF-4 or GF-5, which can be identified with the ILSAC certification mark (Starburst mark) For the complete viscosity requirements, refer to "Engine oil" F12-4. Use only unleaded gasoline with an octane rating of 87 AKI (90 RON) or higher. 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" F7-3. & Fuel capacity: Except XV CROSSTREK models: 14.5 US gal (55 liters, 12.1 Imp gal) XV CROSSTREK models: 15.9 US gal (60 liters, 13.2 Imp gal) & Engine oil capacity: 5.1 US qt (4.8 liters, 4.2 Imp qt) The indicated oil quantity is only a guideline and is estimated based on a case when the engine oil is changed with an oil filter. After refilling the engine with oil, the oil level should be checked using the oil level gauge. For more details about maintenance and service, refer to "Engine oil" F11-7. & Cold tire pressure: Refer to "Tires" F12-8.