Fluid Level Check
Automatic Transaxle Differential Fluid
The manufacturer does not specify a maintenance interval for changing the differential oil/fluid. However, periodic inspection of the level of the fluid (and the fluid itself) is recommended. A high oil level indicates one of three conditions. First, the previous mechanic/owner may have accidentally overfilled the transaxle if the vehicle was not level. Secondly a high oil level (assuming the vehicle is level) can be caused by excessive condensation (water) in the differential. This may be a result of constant operation in wet areas, or high humidity. Moisture can condense inside of the transaxle in the same manner that a can of cold soda 'sweats' when removed from a refrigerator. Lastly, a high oil condition may indicate that the internal seals that separate the differential section from the torque converter/gearset are possibly faulty, and ATF has contaminated the differential oil.
NOTE
Access to the fill/level plug is difficult with the vehicle on the ground. The vehicle must be level to ensure an accurate reading. Carefully raise and safely support the vehicle on jackstands in order to access the fill/level plug. Make sure the vehicle is level before completely removing the plug.
Fig. The gear oil fill and level plug shown with the transaxle assembly removed
Fig. The gear oil fill and level plug is near the centerline of the drive axle. Make sure the vehicle is level when checking
Fig. The differential fluid fill and level plug is on the side of the transmission near the axle. A suitable sized hex tool is needed to remove and install the plug
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