Originally Posted By: Loobed
Good work
My 4L60E transmission has a 12 capacity and needs 5 quarts for a pan drain. The pan has a drain plug, so I drain and refill the AT fluid everytime I change the engine oil. I figure i have 40+% fresh and clean oil every 5000 miles. It,s cheap insurance.
You can do that every 15,000 miles and accomplish the same thing. You are keeping some oil baron in the chips changing atf that often. If you are using DexVI you are really wasting $$.
Here is your chart for drain fills
Number of Times Changed New Fluid
1 42%
2 66%
3 80%
4 88% Do this every 50k and you are good to go. With DexVI every 75k
5 93%
6 96%
7 98%
8 99%
9 99%
10 100%