American Petroleum Institute (API) Engine Oil Identification Symbol

Jeep Wrangler / Jeep Wrangler Owner's Manual / Maintaining Your Vehicle / Maintenance Procedures / Engine Oil / American Petroleum Institute (API) Engine Oil Identification Symbol

This symbol means that the oil has been certified by the American Petroleum Institute

This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils.

CAUTION!
Do not use chemical flushes in your engine oil as the chemicals can damage your engine. Such damage is not covered by the New Vehicle Limited Warranty.

    See also:

    Engine Compartment — 3.7L
    1 — Air Cleaner Filter 2 — Engine Oil Dipstick 3 — Brake Fluid Reservoir 4 — Integrated Power Module (Fuses) 5 — Battery 6 — Washer Fluid Reservoir 7 — Engine Coolant Reser ...

    Power Sunroof — If Equipped
    The power sunroof switch is located between the sun visors on the overhead console. Power Sunroof Switch WARNING! • Never leave unattended children in a vehicle with the key in the ignitio ...

    Cooling System
    WARNING! • You or others can be badly burned by hot coolant or steam from your radiator. If you see or hear steam coming from under the hood, do not open the hood until the radiator has had ...