1988dolphin Posted April 6, 2017 Share Posted April 6, 2017 I am going to drain out all of the ATF in the transmission pan and refill. I have read on various forums that mixing dino and synthetic is OK. The manual that came with the vehicle asked for Dextron II. Any thoughts? If you have done this is there a synthetic ATF that you prefer? Thanks Quote Link to comment Share on other sites More sharing options...
Lee & Joan Posted April 6, 2017 Share Posted April 6, 2017 I was told by my second generation transmission guy not to do this on a 30 year old tranny (unless / until) the tranny was rebuilt with newer components. This was after I had done just that. I ended up with more fluid leakage and finally no reverse. I had the tranny rebuilt at which time I went full synthetic. There are about 8 quarts in there of which you can get 2 quarts out from draining the pan. Unless you do a power "flush". Quote Link to comment Share on other sites More sharing options...
Lee & Joan Posted April 6, 2017 Share Posted April 6, 2017 more info here Quote Link to comment Share on other sites More sharing options...
Lee & Joan Posted April 6, 2017 Share Posted April 6, 2017 and here Quote Link to comment Share on other sites More sharing options...
RedEmerald Posted April 6, 2017 Share Posted April 6, 2017 Question: Is it shifting properly now? Answer: Yes. Opinionated answer based on experience: Leave it alone and keep smiling. Any deviation and you will be back here with LOTS MORE questions. Trust me. Quote Link to comment Share on other sites More sharing options...
Lee & Joan Posted April 6, 2017 Share Posted April 6, 2017 Engine oil link Quote Link to comment Share on other sites More sharing options...
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