Materials Added To Engine Oil

Do not add any supplemental materials, other than leak detection dyes, to the engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives.

    See also:

    Tire Pressure
    Proper tire inflation pressure is essential to the safe and satisfactory operation of your vehicle. Three primary areas are affected by improper tire pressure. ...

    Extreme Cold Weather (Below –20°F Or 29°C)
    To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your dealer) is recommended. ...

    Ride Comfort And Vehicle Stability
    Proper tire inflation contributes to a comfortable ride. Over-inflation produces a jarring and uncomfortable ride. ...