Checking & Adding Fluid

Check fluid at regular intervals. Noticing a change in color, odor or fluid level can serve as a warning of possible transmission problems.
To check fluid level, bring fluid to operating temperature of 200°F. With vehicle on a level surface, engine idling in park and parking brake applied, the level on the dipstick should be at the Full mark. To bring the fluid level from the Add mark to the Full mark requires one pint of fluid. If additional fluid is required, use only Dexron II or Dexron III automatic transmission fluid. When adding fluid, do not overfill, as foaming and loss of fluid through the vent may occur as the fluid heats up. Also, If fluid level is too low, complete loss of drive may occur especially when cold, Which can cause transmission failure.
The drain interval is 100,000 miles under normal service and 15,000 miles under severe operating conditions on light duty emissions vehicles, or 12,000 miles on diesel and/or heavy duty emissions vehicles.