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For the 1996 Corvette with auto trans, the owner’s manual recommends Dextron III transmission fluid for fluid change. I would not use any synthetic auto trans fluid.
I would recommend AMSOIL Signature Series Synthetic Automatic Transmission fluid which is backwards compatible to DEXRON III applications, with all the benefits of a full synthetic.
I would recommend AMSOIL Signature Series Synthetic Automatic Transmission fluid which is backwards compatible to DEXRON III applications, with all the benefits of a full synthetic.
I use Dextron VI (6) it is backward compatable meaning it can be used in applications that called for Dextron 3 or 4. It is what GM uses in the newest Automatic Transmissions. I use this and I'm happy....less heat from less friction. That's my take on it.
one say Amsoil synthetic another poster says no to synthetic and to go with Dextron III
why not synthetic?
There is no issue with Synthetic as long as it is backwards compatible. Those who say no synthetic probably just haven't done the research. A synthetic that meets the requirements will in most cases be better.
One application I can think of where a synthetic didn't work out is a Torsen differential in 4th gen F-bodies. It requires a certain amount of friction in order to lock the gears and a synthetic is just to slippery to do so.
One application I can think of where a synthetic didn't work out is a Torsen differential in 4th gen F-bodies. It requires a certain amount of friction in order to lock the gears and a synthetic is just to slippery to do so.
I had a '99 Firehawk (without the Torsen differential), so I remember the discussions on the f-body boards. I think it was good for autocrossing....
I had a '97 Z28 that I installed a '99+ rear end with a torsen. I used AMSOIL at first thinking it would be better but the Torsen acted as an open diff. I put dino oil in and it was able to lock up again.
For the 1996 Corvette with auto trans, the owner’s manual recommends Dextron III transmission fluid for fluid change. I would not use any synthetic auto trans fluid.
Why is that so? Isn't the latest Dextron backwards compatible with the first Dextron? Regardless of synthetic or not, isn't the standard the most important thing?
TRANSYND 295.... Is used in Allison transmissions. I used it in my 83 Monte Carlo SS 350 auto, in my 2010 Challenger Tremec 6 speed and probably use it my 08 Corvette. I have touched base with the engineer that wrote the spec and tested it. It is direct replacement for Dex III & other Dex xx versions. It's not cheap, $40 a gal.
Why is that so? Isn't the latest Dextron backwards compatible with the first Dextron? Regardless of synthetic or not, isn't the standard the most important thing?
I’m sure all the latest Dextron is backwards compatible with the original Dextron III but I’m not a fan of using any synthetic based trans fluid in an older 4L60E trans. Just my opinion.
I’m sure all the latest Dextron is backwards compatible with the original Dextron III but I’m not a fan of using any synthetic based trans fluid in an older 4L60E trans. Just my opinion.
I am checking with my source.
Originally Posted by vette196
Thats $10 a qt. not expensive compared to other syn. fluids
It is when you have to use 3 gals plus in a Allison transmission used in a RV. Also, if you have say Dex III you have do a double drain/fill.
It is when you have to use 3 gals plus in a Allison transmission used in a RV. Also, if you have say Dex III you have do a double drain/fill.
When I have those issues, my time also factors into the game. So if I paid someone to do that double fill/drain and it costs double with time and materials vs less with the better stuff, that is what I gravitate towards. This is no different than my Powerstroke that takes 15 quarts of oil. If you come to me with an oil that costs twice as much as regular BUT lasts twice as long, it is still a bargain since I figure time into the equation. After all, whether the shop does it or I do it, time is still involved and time IS money.
02-06-2018, 04:31 PM
Transmission fluid
