Quote:
Originally Posted by sixto
It's superior in a 4L60E but what authority says it's superior in a 722.3? Sure, I'd pour it in a beater 722.3 but I wouldn't risk it in a 722.6 or later box.
Sixto
98 E320s sedan and wagon
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Dex VI is a great ATF - and its not a cardinal sin to use in an older 722.3 It will work perfectly over a longer period of time.
The problem nowadays is that GM has discontinued the Dex III license so what you buy in the store is something resembling DexIII - but no guarantees. However if you want the real deal Dex III-H you can look into Allison Transmission fluids TES 389 spec.
Ford's spec of Mercon V is also very close and is a very nice fluid to use in Dex III applications - only a few are licensed though like walmart or Warren lubes different brands - its fortified with skunk tail though, hold your breath when checking level on a hot car.