What are most folks on here with the WS fluid doing for tranny service?
Leave it untouched or perform some kind of regular change intervals?
It just seems odd to me that anyone would never change their tranny fluid...
I found this UOA of someone changing the WS fluid in their LS430 after the 1st 100k miles. There are multiple take aways from this report. I have my opinions but wanted to see what others with more technical knowledge believe.
Are there any negatives to opening a sealed tranny system to humidity or other environmental concerns?
What do you think Toyota means by the definition of "Lifetime Fluid"
edit: TAN report showed acid level of 1.9.
edit2: add history of ATF with some WS background info.
Leave it untouched or perform some kind of regular change intervals?
It just seems odd to me that anyone would never change their tranny fluid...
I found this UOA of someone changing the WS fluid in their LS430 after the 1st 100k miles. There are multiple take aways from this report. I have my opinions but wanted to see what others with more technical knowledge believe.
Are there any negatives to opening a sealed tranny system to humidity or other environmental concerns?
What do you think Toyota means by the definition of "Lifetime Fluid"
edit: TAN report showed acid level of 1.9.
edit2: add history of ATF with some WS background info.
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