I have a 2001 Tundra w/3.4L 6Cyl. with 19,000 miles that I've used Royal Purple oil in since appx 1,000 miles. I want to change the P.S., brake fluid, differential and auto trans to synthetic but, can't find any that's compatible. Anyone have any experience with a product they'd recommend (other than Amsoil)? TIA davidj92
Recommend synthetic lube
Nov 24, 2003
7 Replies
Try Redline:
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Likely the P/S takes ATF, be sure to check your Owner's Manual.
Mobil 1 synthetic auto trans fluid will work fine.....
AFAIK, there is no currently available type-T trans fluid. Amsoil claims to meet the spec, but there has been no independent verification. I wouldn't chance it.
--- Rich
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Power steering--it calls for ATF, so use your choice. Mobil 1 is good Brake fluid--they're all synthetic...use any DOT4. I like ATE. Differential--any syn GL-5 80W-90 or 75W-90. Mobil 1 is good. Tranny--your owner's manual calls for Dexron III, doesn't it?...use your choice. Mobil 1 is good.
I believe the first year that Tundra transmissions used Toyota's type T-IV is 2003.
Ken
Thanks for all the tips. I'm going to look at Mobil1 for products to switch to, except the ATF which is type T. Maybe by the time I get 30k there will be a synthetic for it. davidj92
Heres a couple of links that may help you decide on a good brake fluid.
Interesting reading, it is the opposite of what I was thinking that synthetic brake fluid was less hydroscopic than conventional. I'd probably be better off just staying with Toyota brake fluid. davidj92
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