The recommeded oil for my car via the owners manuel is there anything special about this oil? i was going to change the oil tomarrow and i forgot to go get some at the dealership tonight and i was wondering if just plain old 75W-80 would do just fine or is there some additives in the gm oil? i got the positraction additive
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For my 94, according to the Owner's Manual (and all 93-98's according to my Chilton's), the recommended rear axle lubricant is SAE 80W-90 GL-5 grade gear oil. With the limited slip differerntial, you also need to add 4-oz. of Limited-Slip Differential additive (GM Part No. 1052358). As a minimum, your rear axle lube should meet those specs.
There was a thread about 3-4 weeks ago that debated the use of synthetic gear oils in limited slip differentials. I don't think the results were conclusive, one way or the other.Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motor
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Originally posted by Hobbs95gl-5 whats that stand for?
thanks for the quick response
On the gear lube container, it should indicate that the oil conforms to standard "GL-5".Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motor
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