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I recently switched to Mobil 1 ATF in my 2000 Sienna minivan with an Aisin Warner transmission. The van never shifted roughly with the standard issue Dexron III that the dealer uses, but after switching to M1 ATF, the shifting is now barely noticeable. The 1st-2nd upshift seems a little lazy...

This car has been sitting for four years in a garage with headgasket problems. I recently inherited the car, fixed the headgasket and put it back on the road. I'm running an AutoRX cycle in the engine right now and it’s performing very well. I’ve been running the car back and forth to work and...

I’ve been reading with great interest the continued discussions here about Havoline. I thought I would chime in with some personal observations. My daily driver is a 1990 Toyota Pickup with the venerable 22R engine. Other than one brief AutoRX cycle with dino, it’s seen nothing but Mobil 1 10w30...

I'm coming up on the second ATF change at 30K on a 2000 Toyota Sienna. The first change was at 15K with standard ATF. I'm wondering about the merits of switching to a synthetic ATF in this vehicle. While I have used Mobil 1 oil in all of my engines and Redline gear oils in my manual...

I’ve been hanging around this board for quite a few months now and I’ve really enjoyed the information that I’ve found here. I’ve been introduced to some great products that I’ve tried out on my 1990 Toyota pickup, including Redline gear oils and Auto-rx. To give you some background, I do a lot...