Used TOYOTA WS Automatic Tranny Fluid analysis :

[sbergman27]

Originally Posted by Hershey

So, what's your opinion of changing A.T.F. in a YARIS earlier ?

It couldn't hurt. The power train warranty is 100,000 miles, so apparently Toyota is confident that the oil will get it through that period.

AMSOIL A.T.L. ( www.amsoil.com/storefront/atl.aspx ) can be used in place of the WS .

As I've mentioned before, the Scamsoil company's penchant for using the results of totally inappropriate test procedures (e.g. four ball wear test... for engine oil) to "prove the superiority" of their products, substantially compromises their credibility, in my eyes. I wouldn't buy cooking oil from those folks, let alone trust their transmission fluid. Toyota's WS is known to be a quality fluid. Personally, I would use that.

-Steve

[127.0.0.1]

Originally Posted by sbergman27

It couldn't hurt. The power train warranty is 100,000 miles, so apparently Toyota is confident that the oil will get it through that period.

As I've mentioned before, the Scamsoil company's penchant for using the results of totally inappropriate test procedures (e.g. four ball wear test... for engine oil) to "prove the superiority" of their products, substantially compromises their credibility, in my eyes. I wouldn't buy cooking oil from those folks, let alone trust their transmission fluid. Toyota's WS is known to be a quality fluid. Personally, I would use that.

-Steve

ditto. only use Toyota WS. why roll the dice and possibly risk out of pocket expense when you use something NOT recommended, and you just happen to have a warranty related issue ? you aren't going to gain a damn thing by using Amsoil over Toyota WS, but you might end up losing. it is extremely doubtful Amsoil would give you a problem...but...


LOL...'copper is creeping up'...

this is from the tranny cooler. note: copper is added to lubes in high pressure applications.
it does zero harm in an automatic transmission, unless there is an actual chunk of it blocking
a solenoid or oilway.