Opinions on Mobil 1 Synthetic ATF for 07 Tacoma?

My 07 2wd Access Cab (2.7L) just turned 50,000 miles, so I'm going to flush all the fluids.

My questions concerns the Power Steering and Automatic Transmission Fluids. I have always had great results with Mobil 1 Synthetic ATF in my other cars and was looking for opinions about using it in my 07 Tacoma.
It always made my other cars shift smoother and I like the lubrication properties of it.

Any opinions against it in the Tacoma?

 

I don't see why not. Soon I'll be looking for something for my manual transmission.


Steve

 

Does the 2.7 automatic transmission use ATF-WS? Formulated for improved fuel economy; what I've read is it's a very low viscosity synthetic so if you change to a fluid other than WS you'll probably get flaky shifting and bad performance since valving and torque converter are calibrated to the WS's viscosity. ATF-WS is already a high quality synthetic so don't see much gained by changing to Mobil1. Only down-side if it's not similar viscosity and similar friction modifiers, i.e, if it's not ATF-WS-rated I'd stay away from it.

Can't see an advantage in using Mobil1 in the powersteering. But if it's designed for ATF fluid I guess it can't do any harm. If it's not designed for ATF: could it have harmful effects on seals?

 

Thanks for the great info on the fluid.

I'm going to play it safe and buy Toyota Fluid.