Originally Posted By: slacktide_bitog
Originally Posted By: ryanm8
I know all about Aisin. But this transmission just came out in 2014, at least in VW's. And it came out with a new ATF from VW as well. Why would they make a new fluid if the 10 year old stuff is fine?
I also disagree with your assessment of AT's. They are under more stress than ever with additional gears, higher torque requirements and lower viscosity fluids.
... and those lower viscosity fluids came out 10 years ago! They did NOT make a new fluid; they simply used WS/3325. VW had to give it its own spec number, but it is the same or very close. Every recent Aisin automatic transmission uses that same fluid.
While individual specs may be slightly different (WS/3325, Dexron VI, Mercon LV, etc), they are close enough to make one fluid that meets all of them.
Ravenol is a reputable German company. You can use their products for whatever they recommend them in with confidence.
Knowing that WS will work in your car, you can simply look for Toyota WS or 3325 on the bottle, and it will be OK. It's probably how Ravenol got the name for their product, T-WS
What proof do you have that Toyota WS is the same as VW G 055 540 A2?