The R-12 charging capacity specification found in Section 0B Maintenance and Lubrication and Section 1B Air Conditioning has been revised. The revised specification for R-12 charging is 1.08 kg (2.375 lbs.) for all 1989-90 "A" cars.
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.