Contour Enthusiasts Group Archives Forums Modifications Transaxle ATF+4

Originally posted by bxd20:

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Big Jim-

I appreciate your candor and I think you are on the right track.

I have tried: factory fill, Ford Honey, Redline MTL, ATF+3 (on your suggestion) and Royal Purple Synchromax. See my thread just below this one "... observations" for full details, but in summary:

I feel the best fluid, regardless of price, is the Synchromax. Considering price, the ATF+3 was almost as good as the Synchromax till it broke down with use. I am curious how the ATF+4 will compare to the older ARF+3. If the Synchromax is robust and outlasts ATF+3 (as it should) then I'll stick to it. If shift feel drops substantially in a couple years I may go back.

Brian
99 SVT

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Glad you like the Royal Purple, but you haven't tried Torco RTF yet....then again I haven't tried the synchromax either.


Still, the fully synthetic RTF has been the best all around shifting fluid I put in so far. I really really was impressed with how it performed cold and hot, there was no difference between cold (25-45F) shifts and hot (75-85F) shifts when I had my car.

You'll all have to wait for Ray to come online again and do a long term report on it though. I fully specified I had no idea how good it would be over the long run on both shift feel, protection, and and wear. I have a feeling it will turn out to be real good though.