Dex VI
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,054
Likes: 103
From: Ohio
Dex VI
i was getting stuff together to change gear and trans fluid in my '85 4 + 3 - dex 3 seems to be more elusive than before - lots of this dex VI - so is this now the acceptable replacement for the dex 3 recommended for the 4+3 - has anyone put this in theirs yet? I was still looking for the old stuff conventional dex 3 -
any thoughts?
thanks
any thoughts?
thanks
Racer
Joined: Mar 2025
Posts: 485
Likes: 233
I have always been informed that the Dexron is back compatible but not forward compatible. Dex VI can be used in Dex III applications. I haven't changed the trans fluid yet on my vehicle but I have done so for other vehicles with no issues.
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,054
Likes: 103
From: Ohio
https://www.oreillyauto.com/detail/c...gallon/val0/d1 - i did find a conventional that oreilly's says fits
Safety Car
Joined: Mar 2017
Posts: 4,189
Likes: 1,312
From: LeClaire Iowa
You asked if anyone has used the VI. Yes, I did in my 96 and it shifts fine and still looks new after a few years. I don't think Dextron would come out with a modern synthetic that they say is backwards compatible that in fact hurts older transmissions. Dan
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,054
Likes: 103
From: Ohio
thanks - you are probably right - reading and re-reading so many of the old posts - older posts - hear how we need to steer clear of synthetics for fear of leaks - definitely made me skeptical - to say the least
Thread Starter
Burning Brakes
Joined: Jun 2016
Posts: 1,054
Likes: 103
From: Ohio
from Valvoline
Both our Dex/Merc ATF and our Dexron VI ATF cover the Dexron III fluid specification. Either may be used and both are fully compatible with the OEM fluid.
for anyone - FYI stuff
Both our Dex/Merc ATF and our Dexron VI ATF cover the Dexron III fluid specification. Either may be used and both are fully compatible with the OEM fluid.
for anyone - FYI stuff
