Amsopil transmission fluid two thumbs up!

[lenzomaru]

Originally Posted by Toolaholic

Hi all, I changed my yaris transmission fluid back in april 28 at 47,883. Old fluid had a deep purple color. I put 2 quarts and 20 oz of toyota ws in. Toyota ws was about 7.69 at my dealer. Then I got another 10% off w/ my rewards card. Yaris shifted better. Then at 55,118 in october I drained fluid again(still purple but not as dark as before) and used the amsoil ws compatible fluid i got for around $10.50 a quart at the local hardware store. I used 2 quarts of amsoil and 20 ounces of toyota W/S. You can barely feel yaris shift. It is as smooth as can be. Either its the amsoil or my 2nd change that did it. I torqued drain plug to 30lb ft of torque. Figured if the oil drain plugs are torqued to 29lb ft;30 would work for transmission. I plan on dropping pan at 100K and changing filter and pan gasket. Then I will use 2 quarts amsoil and 1 quart 20 oz of toyota WS fluid. I don't want all amsoil. I want some toyota WS in the mix. the 20 ounces is close to the .6 of a quart. Yaris manual states 2.6 quarts to fill after drain. 2 quarts 20 ounces is very close. Toyota spec is on the money as my dipstick showed the fluid in between the notches. And for whatever reason the amsoil fluid has a very strong odor. Pour slowly into funnel. If you pour to fast tranny fluid can back up in dipstick tube and run out.

So does that mean that the deep purple colour is an indicator of a need to change?

The manual i have for my 07 yaris says to check the a/t oil at 100,000km then at 50,000km intervals after that, they treat it as a lifetime fluid, the problem is i am not sure how to tell when the a/t oil needs changing. I am currently at 42,000km. P.S. I don't have amsoil available where i live, can you recommend any other brands that can be used?