Can I mix ATF 4 and Dexron VI?
Can I mix ATF 4 and Dexron VI? MaxLife® ATF, ATF +4 and DEXRON® VI are all synthetic transmission fluids. Is it OK to mix synthetic ATF with a conventional and/or synthetic blend ATF? Yes. Synthetic ATF and conventional fluids are 100 percent compatible with each other. When did GM stop using Type A transmission fluid? All brands under the property of general motors such as Oldsmobile, Cadillac, Buick, Chevrolet, Pontiac, GMC, Ford, Mercury, Lincoln, Chrysler, Dodge, Desoto, Packard, and Studebaker used GM Type “A” transmission fluids from 1949–1958. This was until general motors released a new product to replace...