Automatic Transmission Fluid, new requirements

[nhparrot]

Originally Posted by Altered4X

Im asking the same question. If Mudog is correct with his theory, O2 Tundras were originally filled with "Type T" fluid from the factory and it would be positive to continue using this fluid for future fluid changes.

The reason I ask this, about 10K miles ago I did a 4qt drain and refill and I used the T Type IV fluid on my 02 4wd. My tranny still shifts like the day I bought her and I tow a 5k trailer often.

Should I continue using the Type-T IV fluid to do the 4qt drain/refill on my 02 Tundra?

Thanks

The correct fluid for an '02 is Dexron III

[mikeinaustin]

Originally Posted by Tundra2UZ

I'll say a couple of things. The new Toyota Type-IV fluid does not just apply to the 2003 Tundra but to several other new Toyota/Lexus models. I've never heard of any transmission problems from Toyota/Lexus recently so why Toyota switched to this new special fluid is a complete mystery, other than to get people to keep going to Toyota to spend $$$.

Interesting that Bradbury mentioned about the fuel filler doors lacking locks on the Tundra. I noticed that on some of the Tacoma Pre-Runners that there is no lock for the Fuel filler door either. Geesh, even small economy cars have locks on the fuel filler door. This and a whole lot of errors about specifications in the owner's manual does not sound very Toyota like to me.

Type T-IV ATF certainly isn't new, its been around at least since 1998. In 1998 it replaced type T-II (yes there was a type T as well, but don't believe there ever was a type T-III).

[Tundra2UZ]

Has anyone here tried the Amsoil's ATF now that they claim to be compatible with Toyota Type IV? I guess, as a couple of you have already stated that the Type T IV has been around for at least 5 years, that Amsoil has had plenty of time to formulate their transmission fluid for the Toyota T-IV ATF. It seems strange that Amsoil can meet so many different specs under one fluid.