Dexron VI for 700R4.

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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?
 
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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.
 
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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.
 

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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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.
 

4WD

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Before Dexron VI … guys here that towed hot & heavy in gassers switched to Mobil 1 ATF …
 
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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 M1 ATF.
 
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Fill with Dexron VI. It can handle severity and time with reduced oxidation. It's superior to Dex III. I suspect that single fill of Dex VI will outlast the S-10. I miss my S-10 from my youth. frown
 
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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.
 
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