Dickensheets Posted May 16, 2006 Share Posted May 16, 2006 I want to change tranny fluid on the 4eat, are the two types compatible? Currently have dino,want to use syn this time around. rd Quote Link to comment Share on other sites More sharing options...
Jerry DeMoss Posted May 16, 2006 Share Posted May 16, 2006 IIRC the synthetic will mix and be compatible with the regular stuff. Quote Link to comment Share on other sites More sharing options...
nipper Posted May 16, 2006 Share Posted May 16, 2006 What year and mileage on this listen carefully to your tranny after you change. Unlike engines, transmissions need friction to operate (both manual and automic). Also you dont really gain anything by using syn in a tranny not designed for it. In a tranny not designed for synthetic, if you hear any slipping you should change back to dino. nipper Quote Link to comment Share on other sites More sharing options...
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