According to General Motors, the manual transaxle fluid should be checked every time the oil is changed to make sure the level is full. The manufacturer does not recommends an interval for a manual transaxle fluid change.
The proper fluid for all manual transaxles is Synchomesh® manual transmission oil, GM part No. 12345349 or equivalent. DO NOT use any other fluid as damage may occur.
See Figures 1, 2, 3 and 4
The fluid level indicator is on the driver's side of the transaxle case above the axle shaft. On 1988 models, the fluid level indicator is in the filler tube on the 4-cylinder engines; on the V6 engines, the fluid level indicator and washer are separate from the filler tube. The filler tube cap must be removed to add fluid on V6 engines. On 1989-96 vehicles, the fluid level indicator and filler plug are one in the same.
Only check the manual transaxle fluid level with the engine OFF and cold.
- Make sure the car is parked on a level surface. The transaxle should be cool to the touch. If it is hot, check the level later, when it has cooled.
Oil may appear at the bottom of the dipstick even when the fluid is several pints low.
- Remove the fluid level indicator/fill plug and read the fluid level. If the fluid level indicates "Add" or below, use the proper type and amount of fluid to fill the transaxle to the "Full" level.
- When the level is correct, seat the level indicator and/or filler plug fully.
DRAIN AND REFILL
The fluid in the manual transaxle does not require changing.