Dexron II/III Alternatives

[Charmet37]

And this would be a better choice than Supertech DEXRON-VI how?

The Dex VI and the supertech mercon v should work from reading various forums, valvoline maxlife was mentioned as well.

 

[Charmet37]

This is full syn:

Yup, The blue bottle valvoline multi import vehicle sounds good.

 

[Charmet37]

And this would be a better choice than Supertech DEXRON-VI how?

I wouldn't say better but comparable.

 

[Samik8377]

Can a JWS3309 ATF substitute Dex3H/Mercon speced (Dex/Merc) ATF?

 

[MolaKule]

Can a JWS3309 ATF substitute Dex3H/Mercon speced (Dex/Merc) ATF?

It could, but why use it when there are more modern Dexron VI fluids that are more stable in many performance categories.