Does gear oil go bad on the shelf?
#1
Does gear oil go bad on the shelf?
I'm going to be changing my tranny and diff fluid soon and was wondering if I can use the half bottles that I have leftover from the last change three years ago...
The fluid is Redline MT-90 (trans) and 75W90 (LSD) for an '88 GTU. The fluid was kept in a cabinet in my laundry room, so not exposed to any freeze/thaw cycling, etc.
I'm guessing I should probably toss the old stuff.
The fluid is Redline MT-90 (trans) and 75W90 (LSD) for an '88 GTU. The fluid was kept in a cabinet in my laundry room, so not exposed to any freeze/thaw cycling, etc.
I'm guessing I should probably toss the old stuff.
#4
Rotary Enthusiast
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it should still be good. Theres nothing really contaminating it if its kept in the bottle. Ive used unopened oil on my car that has been sitting in my basement for who knows how long.
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#12
So if oil has a shelf life of about five years, does this mean if I use it now, it will begin breaking down inside my transmission in about two years (since it's been on the shelf for three already)? Since I generally drive only 5000 miles a year, I'm on a schedule of changing my gear oil every three years. So does that mean I'll need to change my gear oil sooner if I mix in the old stuff?
Believe me, I'm not in the business of throwing away money. My wife still looks at me funny when I show her perfectly good stuff I've fished out of the neighbors' trash. But I'd rather throw away $10 worth of oil than use something that's going to harm my car or work less effectively.
Believe me, I'm not in the business of throwing away money. My wife still looks at me funny when I show her perfectly good stuff I've fished out of the neighbors' trash. But I'd rather throw away $10 worth of oil than use something that's going to harm my car or work less effectively.
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armans
3rd Generation Specific (1993-2002)
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08-15-15 09:08 PM