Early 1983 Skyhawks equipped with manual 5-speed transaxles may experience a condition of insufficient fluid even though the fluid level indicator (dipstick) reads slightly below the "FULL" mark. The condition is the result of a reservoir effect causing an amount of oil to become trapped in the 90 DEG elbow threaded to the case that the fill tube and dipstick enter (see illustration).
A fluid level reading 2mm below the "FULL" mark indicates the transaxle could have between zero and approximately two quarts of fluid in it. If this condition is noted, add 5W-30 motor oil (in one pint increments) to bring the level at least even with (or as much as 6mm above) the "FULL" mark.
Later model Skyhawk vehicles will incorporate a new design indicator (part number 14075760).
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.