Quote:
Originally Posted by XC90Mk1
When you drain, circulate for 2 mins then do again it does not mix the fluids. I have experimented with it.
Drain, then drive 200 miles and redo.
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I thought the same.
Lets say the existing fluid in the transmission was very dirty. How many times would you need to repeat the process to get the fluid clean would you say?
This would be based on doing drain & fills over a period of time with 200-500 miles in between each fluid change.
Also, would it be okay to reuse the rubber washers/o-rings that go on the transmission drain plug whilst doing these drain & fills, but replacing them with new ones on the final drain & fill when the fluid is clean? Otherwise, it means replacing the o-rings every single drain & fill... seems a bit of a waste of o-rings when only doing 200 miles or so in between changes.