Originally Posted By: LScowboy
Originally Posted By: writes123
I've used the above mentioned Havoline as well as Mag1 Dexron VI. The Mag1 is actually slighty cheaper per quart. Dosed it up with Lubegard Platinum in my LS430.
Now if there is one area where I may know as much as anyone in the world, it's the Lexus LS series. (LSCowboy of Club Lexus fame)
However, I am gonna have to disagree with your choice here, the Aisin A650E/A761E in your LS430 has arguably the longest life of any transmission ever made, averaging greater than 300,000 miles of service life and sometimes going to 400,00 or 500,000+ miles - and it accomplishes this magic via Toyota T-4 fluid and/or Toyota W/S (World Standard) fluid. (both custom blends designed by Aisin Engineering and refined by Exxon/Mobil)
So why in the world would you think you could improve on the world champion of transmission longevity? You can't. - use the correct fluid and do not "dose it up" if you want the crazy 400,000 mile tranny life and you want the legendary imperceptible LS series shifting that Mercedes and BMW envy!
So I have to ask, then why are you looking to use Dex VI? Or did I miss that it's for a different application?