I think most Toyota owners who venture into more stout fluids go to Amsoil Severe Gear. I think Astro14 is running it.Thanks!
I'm going to wait and see what Blackstone has to say about the health of my ATF.
I've gathered adding the ATF cooler shouldn't void the warranty since it's built from genuine Toyota parts but IF I have an issue and had swapped ATF to another brand which I'm still confused about Toyota could conceivably refuse to honor the warranty without a bunch of rigamarole.....
IF I decided to use the highly touted Amsoil how do I confirm it's an exact replacement spec wise? I gather ATF has a WS designation but are there other more concise numbers that match up? Looks like there's various flavors of WS....
Thanks!