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So what's the concensus on using synthetic in an auto tranny?? I'm about up for a tranny service and was thinking about using syn.

Tim B.


I have used both regular and syn in the tranny of my trucks and haven't noticed any real difference. Reguardless of which I use I change & flush the tranny every 20k - 25k. The tranny in my 89 GMC Jimmy ( full size ) has over 300k on it and it has seen only std dino atf ( knock on wood ). In my 02 F250 I started using syn in the tranny because I use it to tow our TT alot and a synthetic will hold up to higher temps without breaking down which is what kills most tranny's. JMO

Bob

"You can't expect to wield supreme executive power just 'cause some watery tart threw a sword at you."

02 Trooper S, TOD, Aisin Hubs, FJORD Blue, ARB 3444070 Winch Bar. Dueler A/T REVO LT265/75R16