SPARK PLUG USAGE AND GAP PRODUCTION CHANGE

To assist cold startability on some 1982 1.8L OHC-FI engines, at very low ambients, the following change in spark plugs has been implemented:

CURRENT NEW

R42XLS6 R44XLS at.035 Gap

Dealer Service Information Bulletin 83-1-58 Section 6E, currently addresses 1983 model year OHC-FI engines.

When spark plug replacement is necessary, the R44XLS plug at .035 gap should be used regardless of original plug type.

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.