C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oil Change, Differential

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Old Jul 18, 2002 | 01:14 AM
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Tom Mieczkowski's Avatar
Tom Mieczkowski
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Default Oil Change, Differential

Friends,

I'm about to get my car up on jack stands to do brakes (I'm at a little more than 50,000 miles) and figure I might as well do the rear end oil while its up in the air (I did the ZF last winter). I know there no drain plug, and I'm prepared to pump out the old oil. What are you folks generally recommending for the replacement lubricant? My car's an LT4 Collector Edition in very good shape and no history of racing or hard use.

Any tips or advice always appreciated. Thanks, everyone.


[Modified by Tom Mieczkowski, 11:15 PM 7/17/2002]
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Old Jul 18, 2002 | 06:15 AM
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Default Re: Oil Change, Differential (Tom Mieczkowski)

Use a good Synthetic. I have seen 2 different Car shows, Horsepower TV and Popular HotRoding, with segments on synthetics. HPTV used a mustang and gained 8hp by simply changing oil, trans, and rear end to synthetics. HPTV used Royal Purple. PHR - did not namr the synthetic. :flag
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Old Jul 18, 2002 | 10:14 AM
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silver & red CE's Avatar
silver & red CE
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Default Re: Oil Change, Differential (Tom Mieczkowski)

I use Mobil1 75W-90, it's approved for the Dana44. I also add 1 bottle of the factory additive (friction modifier).

Eric
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Old Jul 19, 2002 | 02:50 AM
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Default Re: Oil Change, Differential (silver & red CE)

I use Mobil1 75W-90, it's approved for the Dana44. I also add 1 bottle of the factory additive (friction modifier).

Same here
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Old Jul 19, 2002 | 10:23 AM
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Default Re: Oil Change, Differential (lemans396)

I used the GM lube with the GM posi additive.

Vic
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