SERVICE INTERVALS
Check transmission fluid level at each engine oil change. Under normal driving conditions, on vehicles under 8600 Gross Vehicle Weight Rating (GVWR), change transmission fluid and filter at 30,000 mile intervals. On vehicles over 8600 GVWR, change transmission fluid and filter at 24,000 miles.
If vehicle is used in severe service conditions (commercial use, trailer pulling, constant stop-and-go driving), change fluid and filter every 15,000 miles on vehicles under 8600 GVWR and at 12,000 miles on vehicles over 8600 GVWR.
CHECKING FLUID LEVEL
Note. Vehicle must be at normal operating temperature (180-200 degrees) when checking fluid level. One pint of fluid raises level from ADD to FULL mark on dipstick in a hot transmission. DO NOT overfill.
RECOMMENDED FLUID
Transmissions and transfer cases use Dexron-IIE ATF. Although Dexron-IIE is recommended, Dexron-II may still be used. Dexron-II will eventually be replaced with Dexron-IIE.