[QUOTE=ozinaldo;13447328]
Quote:
Originally Posted by dEvo6
1M comes from factory filled with differential oil without the FM booster which means you may continue with this regular oil as long as you are comfortable with the noise in your car. If you refill with the oil including FM booster then you need to continue with that one and you can't go back to non-FM booster oil though. That's the trick you need to pay attention to.
Since I am satisfied with the regular oil without FM booster and am also concerned about a possible future unavailibility of the one with booster, I myself prefer to continue with the regular oil, for now.
Which type you actually have in your differential?
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Actually I don't know because it's the same from factory. I usually change it every 10.000 km or less, especially when running the car in drifting TD.
Are you sure that the car comes from factory with a different oil respect to the one they suggest for servicing the car ?