mkjr

Had my transmission fluid tested by blackstone.

I had the transmission fluid changed once at 90,000 km [56000 miles] no test done.

Then recently had it changed again after another 60,000 km [37,000 miles] but collected a sample and sent for analysis.

Results are attached.

Any thoughts?

I did not really notice any difference in shifting prior to the change. Has been smooth as far as I can tell.

Maybe change the ATF every 30,000km now? Send another sample?
Thanks.

Clutchless

I wonder if the high aluminum is related to the known issue of case bearing bore wear etc. See this article from Gears Magazine: https://gearsmagazine.com/magazine/t...transmissions/

Here is the paragraph:
​​​​​​

U660E Case Bearing Bore Wear

The U660E is prone to case wear where the main gear train bearing support is mounted. This is attributed to high torque loads from a low first gear ratio and Toyota’s torquey V-6 engine. With higher mileage, unit centerline issues occur. As a result, internal bushing wear is common. In extreme cases, the torque converter input spline area can break away, causing a no move condition (figure 3).

The case and bearing are available from Toyota. There are several aftermarket resources that restore these cases as well. If the outer bearing race moves at all, the case will need to be repaired or replaced.

Wilson2000

Great post Clutchless! I was not aware of this issue. I'm gonna slow my roll and stop punching the throttle when driving my wife's ES!

ESh

I don't think AL83 is too high. Keep in mind that there is a lot od metal shavings from the case and TC.

What kind of ATF did you use? WS or aftermarket?

mkjr

Thanks for the responses. My work order says WS ATF fluid.