OIL LEAK AT OIL PAN DRAIN PLUG V-8, V6, OHV L4 CARS & TRUCKS

Model and Year: ALL 1986 AND PAST MODEL YEARS APPLICATIONS OF V-8, V-6, OHV L-4 WITH THE FOLLOWING VIN CODES o PASSENGER CAR - F,G,H,P,S,W,X,Y,Z,6,8 o TRUCK - F,H,K,L,M,N,R,W,Z

TO: ALL CHEVROLET DEALERS

An improved oil drain plug gasket, P/N 14090908, is available to replace the copper gasket. The new gasket is a steel washer with captured O-ring (Viton).

The new O-ring/steel gasket is capable of sealing irregular surfaces with light torques while retaining the clamping load over time. Reuse of the O- ring/steel gasket does not lessen sealing or torque retention characteristics.

Recommended torque for the O-ring/steel gasket is 12-20 ft. lbs. (16-27 Nm).

Excessively higher torques may cause deformation, splitting, or loss of sealing capability.

This is an informational bulletin.

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.