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How to drain your transmission fluid.

127K views 83 replies 28 participants last post by  avgguy  
Great writeup, as usual! I was surprised to see how brown the tranny fluid looked after only 50k miles, both when draining and in the drain pan.

I guess I may have to add this to my to-do list since we are at just over 50k miles. I believe I'll run down to Napa and get some of the Dexron. I can use it in the Enclave, the Vette, or the Avalanche.
 
Purportedly, when Dex 6 first came out, a lot of it was semi-synthetic rather than full synthetic. Valvoline was one that was supposedly full synthetic, and it was cheaper as well. Walmart sells it here so it's readily accessible and is what I buy. I wouldn't worry about using any major brand of Dexron 6.