Transmission fluid

I have an 07 tundra limited. I am getting coflicting information if
Castrol Transmax ATF/CVT Universal Automatic Transmission Fluid is ok to use in my tundra?
Thank you
mike

 

I'm not sure about the Castrol but several guys use either Valvoline Maxlife or Amsoil in place of the WS

 

And then……….there’s………..this:

 

I wonder who produces the WS for Toyota?

 

For T-IV that was Mobil is North America and Idemitsu in Asia.

 

If it were me doing a drain and fill I'd use Toyota WS, Idemitsu or AISIN before any others. But that's just me...

 

WS is less expensive from my dealer online than from Amazon....wow

 

I used the Valvoline Maxlife. It is synthetic and easier to get at autoparts. I don't believe Toyota WS is synthetic.

 

I thought the same but was told by IPT that WS is synthetic. So now I have no idea but really never looked into it beyond what was stated online.

 

Maxlife for the win

Ive used it for 80k miles.

there is a posting on bobistheoilguy. That shows maxlife s strikingly similar to Toyota brand

 

I used Toyota WS when I did a drain and fill in mine. I know a lot of people use maxlife, but I would stay with a WS fluid. Rockauto has Aisin WS and Idemitsu WS for a little over $7/quart. I plan on using the Idemitsu this fall to do another drain and fill.

 

Thanks!