For 1990-2009 cars

# SPARK PLUG APPLICATION PLUG TYPE AND GAP

#### VEHICLES AFFECTED: All 1984 Oldsmobile Models with Closed Loop Emission Systems

The emission label on some Oldsmobiles may not have the spark plug gap information included. Figure 1 lists spark plug information for 1984 Oldsmobiles.

For Canadian emission vehicles, see Section 6G of the 1984 Passenger Car and Light Duty Truck Service Manual Supplement.

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.