See also:

Satellite Antenna
To ensure optimum reception, do not place items on the roof around the rooftop antenna location. Metal objects placed within the line of sight of the antenna will cause decreased performance. La ...

Materials Added To Engine Oils
Do not add any supplemental materials, other than leak detection dyes, to your engine oil. Engine oil is an engineered product and it’s performance may be impaired by supplemental additives. ...

American Petroleum Institute (API) Engine Oil Identification Symbol
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 flushe ...