differential gear oil

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02-16-2012, 10:16 AM

iputon

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Join Date: Feb 2012

Posts: 3

differential gear oil

i have a 1985 seville 4.1 motor front wheel drive what type of oil to put in the differential thanks

02-16-2012, 12:14 PM

Cadsforfun

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Join Date: Aug 2010

Posts: 214

Oil

Use SAE 80 or SAE80-90 GL5 Gear Lube Some GM#1052271 or 1052272. Recommended change every 10,000 and check level once a year.

02-21-2012, 01:58 PM

Henry Leland

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Join Date: Feb 2012

Posts: 13

Quote:

Originally Posted by Cadsforfun

Use SAE 80 or SAE80-90 GL5 Gear Lube Some GM#1052271 or 1052272. Recommended change every 10,000 and check level once a year.

Why so often? Just because it's front-wheel drive and runs hotter? For rear differentials changing the oil every 100K miles is usually more than often enough.

02-22-2012, 11:47 AM

Cadsforfun

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Join Date: Aug 2010

Posts: 214

Diff. Oil

Just from the GM maintenance charts, not something that I recommend. I agree that it is too often as well and never do it more often than about 50,000. All depends if you have been towing or not.