Question about driving RPM

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G-Body Guru
Thread starter
Nov 6, 2010
Lake Wylie,SC
pontiacgp said:
if you don't know what gear you have then you don't know how old the oil is or what condition it's in.....fresh oil in the rear frees up some HP and gets you better gas mileage, plus you'll find out what gear you have.

Thanks I'm going to have them in the next couple open it up and check and put fresh oil in it.
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