Changing my diffs running 75W90 in the front and 75W140 in the rear. Need 2.1 quarts for the rear but don't want to buy a 3rd quart. Ok to mix a few oz of 75W90 with 75W140 in the rear?
Ok to mix gear oil viscosities?
- Thread starter zuluplus30
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I always do without any issues....that I know of.... but I have done this for years now and never lost a diff.
I have often mixed the 140 weight stuff with 80w-90, to yield a happy medium of some sort. It's always worked fine with no issues.
I started doing this after using Amsoil Severe gear 75w-110 which is a pretty ideal weight for my application. Don't always need the pricy stuff, so I found it useful to mix the less expensive gear oils that aren't avail in that viscosity.
I started doing this after using Amsoil Severe gear 75w-110 which is a pretty ideal weight for my application. Don't always need the pricy stuff, so I found it useful to mix the less expensive gear oils that aren't avail in that viscosity.
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