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CURL'S TIRE AND AUTO
02-03-2010, 09:04 PM
Hey guys, Finally got around to changing the transmission fluid today. I ran Royal Purple 75w90 instead of the stock Toyota/Scion fluid. It DOES NOT void the warranty to do this. I checked before hand. I noticed quickly, a change in shifting, and transmission noise(or lack of). Recommended change intervals can now be upwards of 50k. Give it a shot, or go with Amsoil as I will next time, just to try it, I am a dealer btw!

mcbrew
02-11-2010, 04:52 PM
Red Line also makes some excellent synthetic transmission fluids. That's what I'm running in mine at the moment. It makes a difference!