MINIMUM ACCEPTABLE OIL LEVELS PASSENGER & LIGHT DUTY TRUCKS

The following information provides a guide for minimum acceptable oil levels "as received" from the factory. Only those components which have levels less than indicated below should have additional oil installed.

Engine - Full mark to 6mm (.24 in.) below full mark.

Transmission

Automatic - With engine idling, transmission selector in "park", vehicle on a level surface and oil temperature between 10 DEG C to 38 DEG C the oil level should be within the cold level range betwen dimples on the oil gauge rod.

Manual - 1) lower edge of inspection plug hole on rear wheel drive vehicles.

2) between cold level range dimples or at cold level mark on front wheel drive vehicles.

Differential - Lower edge of inspection plug hole to 9.5mm (.37 in.) below lower edge of inspection plug hole.

Transfer Case - Lower edge of inspection plug hole.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.