Sections OB, 6D4
---------- 1990-91 Geo Metro
This bulletin supersedes service information contained in the 1990-91 Geo Metro Service Manuals (ST370-90 and ST370-91 respectively). When replacing spark plugs on 1.0L (VIN 6 - RPO LP2) engine use AC type R42XLS or GM P/N 5613522.
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.