Quote:
Originally Posted by nelsmar
If you end up with any major transmission issue there is a chance corporate will ask for an oil sample. So a flush would need to be done. The tech I use said use whatever as long as the specification is the same. I went with the same stuff brent uses.
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That's correct. As long as the fluid matches the spec in the owner's manual, it doesn't cause grounds for a denial of warranty claim.
So, Motul 300 Gear would be the good stuff to use, I'm told. It's SAE 75W-90 GL4/5, which means it meets both GL4 and GL5 spec. So you can use the same stuff to swap both your transmission and your rear diff fluids (rear diff fluid spec is for SAE 75W-90 GL5)