In my S10 the transmission has a little over 18,000 since being rebuilt is Dexron VI ok to use or should i just put Dex / Merc III back in?
Dexron VI for 700R4.
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Dex VI superceeds Dex III and Dex IIe, Dex VI might start at a lower viscosity but over its lifetime it maintains a more stable viscosity while III or IIE would tend to shear.
Originally Posted by blufeb95
Dex VI superceeds Dex III and Dex IIe, Dex VI might start at a lower viscosity but over its lifetime it maintains a more stable viscosity while III or IIE would tend to shear.
Sounds like it is good stuff and i will buy some tomorrow for a drain and fill.
Dex VI superceeds Dex III and Dex IIe, Dex VI might start at a lower viscosity but over its lifetime it maintains a more stable viscosity while III or IIE would tend to shear.
Sounds like it is good stuff and i will buy some tomorrow for a drain and fill.
MolaKule
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I am using an equivalent Dexron VI in my 1999 S-10 with 212,000 miles on the original engine and transmission and both continues to operate just fine.
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A few days ago someone posted a price for A C Delco Dex VI that they found on Amazon .
Dex VI is superior, as long as it works well initially. This just came up yesterday, my brother is getting his dirt track car back together, being a Turbo 350 it's had regular Dex it's entire (abused) life, so he's putting Dex III/Mercon in it. Not sure if a full synthetic ATF would start leaking, and his external ATF cooler is actually an old A/C condenser, so temperature normally is a problem.
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Before Dexron VI … guys here that towed hot & heavy in gassers switched to Mobil 1 ATF …
You could also use Mercon V. It's a little heavier than Dexron VI and closer to Dex/Merc. I ran into this with my Dex/Merc applications and went with Mobil 1 ATF.
I'd use Allison TES-389 (petro base) or TES-295 (PAO base). Both are Dex III equivalents.
Dex VI had some seal compatibility problems in Allisons early on, maybe with 700R4 also, can't speak definitely.
https://www.allisontransmission.com/parts-service/approved-fluids/on-highway-fluids
Dex VI had some seal compatibility problems in Allisons early on, maybe with 700R4 also, can't speak definitely.
https://www.allisontransmission.com/parts-service/approved-fluids/on-highway-fluids
Originally Posted by nascarnation
I'd use Allison TES-389 (petro base) or TES-295 (PAO base). Both are Dex III equivalents.
Dex VI had some seal compatibility problems in Allisons early on, maybe with 700R4 also, can't speak definitely.
https://www.allisontransmission.com/parts-service/approved-fluids/on-highway-fluids
If it's been rebuilt I doubt you need to worry about old seals/
I'd use Allison TES-389 (petro base) or TES-295 (PAO base). Both are Dex III equivalents.
Dex VI had some seal compatibility problems in Allisons early on, maybe with 700R4 also, can't speak definitely.
https://www.allisontransmission.com/parts-service/approved-fluids/on-highway-fluids
If it's been rebuilt I doubt you need to worry about old seals/
Originally Posted by blufeb95
Dex VI superceeds Dex III and Dex IIe, Dex VI might start at a lower viscosity but over its lifetime it maintains a more stable viscosity while III or IIE would tend to shear.
If he is going to do regular low mileage changes of less the 30k, I would stick with the Dex3 as long as it is available. The amount of shear at less than 30k is something I wouldn't worry about.
Dex VI superceeds Dex III and Dex IIe, Dex VI might start at a lower viscosity but over its lifetime it maintains a more stable viscosity while III or IIE would tend to shear.
If he is going to do regular low mileage changes of less the 30k, I would stick with the Dex3 as long as it is available. The amount of shear at less than 30k is something I wouldn't worry about.
My 2002 Tahoe has a 4L60E which is essentially just an electronic 700R4. I use Dex VI. It's at 265k miles and going strong. *knock on wood*
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