Quote:
Originally Posted by FL 4Motion
hmmm, well, I don't think nissan has changed out the specs for the diff fluid recently, so I'd lean towards the service tech putting in the wrong oil.
That said, I wouldn't worry too much about it. I'm actually going to be swapping rear diff fluid very shortly and will be running motul 75w 140 myself as per forged performance's recommendation since our rear diffs run so damn hot, esp under track conditons.
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Did that in my WS6. Burned up the diff in 5K miles.
Axles and wheel-bearings went out, and pinion-bearing spun. The bearing was blue/rainbow from heat. I will never use any weight but spec, or Royal Purple again, for this reason.
It may all be coincidence, but I'm not going to do it anymore.