Subaru Forester: Synthetic oil - Engine oil - Maintenance and service - Subaru Forester Owner's ManualSubaru Forester: Synthetic oil

You should use synthetic engine oil that meets the same requirements given for conventional engine oil. When using synthetic oil, you must use oil of the same classification, viscosity and grade shown in this Owner’s Manual. Refer to “Engine oil”. Also, you must follow the oil and filter changing intervals shown in the Warranty and Maintenance booklet.

NOTE
Synthetic oil of the grade and viscosity noted in chapter 12 is the required engine oil for optimum engine performance.

Conventional oil may be used if synthetic oil is unavailable.

    Recommended grade and viscosity
    Use only engine oil with the recommended grade and viscosity. Refer to “Engine oil”. NOTE Engine oil viscosity (thickness) affects fuel economy. Oils of lower viscosity provide bette ...

    Cooling system
    Never attempt to remove the radiator cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray ...

    See also:

    Engine Compartment Fuse Block
    To remove the fuse block cover, squeeze the clips on the cover and lift it straight up. See Engine Compartment Overview on page 10‑6. Notice: Spilling liquid on any electrical component on ...

    Cargo compartment enlargement
    Important safety notes WARNING Always lock the seat backrest in its upright position when the rear seat bench is occupied, or the extended cargo volume is not in use. Check for secure lockin ...

    Temperature Grades
    The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat, when tested under controlled conditions on ...