G 2500 3/4 Ton Van V8-350 5.7L VIN K TBI (1995)
Fluid - A/T: Testing and Inspection
Turbo Hydra-Matic 4L60-E
Fluid level should be checked at every engine oil change. Frequency of change for transmission fluid is dependent on the type of driving conditions in
which the vehicle is used. If the transmission is subjected to severe service such as: use in heavy city traffic when the outside temperature regularly
reaches 90°F, use in very hilly or mountainous areas, commercial use such as taxi or delivery service, the fluid should be changed every 15,000 miles
when using Dexron II and 50,000 miles when using Dexron III or equivalent. Otherwise, change the fluid every 100,000 miles, using Dexron II, III or
equivalent automatic transmission fluid. When checking fluid, ensure vehicle is at operating temperature (190°-200°F), which can be obtained by 15
miles of highway-type driving. After transmission fluid is at operating temperature, use the following procedure to check fluid level:
1. Ensure vehicle is on a level surface, then move gear selector to the Park position.
2. Apply parking brake and block wheels, then allow engine to run at idle speed for three minutes with accessories off.
3. Check fluid level, color and condition.
