Consistant Oil leaks

By Mighty HD
February 12, 2006 in Ask A GM Technician

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Mighty HD

Posted February 12, 2006

04 Sierra 2500hd 4x4 ECSB 6.0 13,9xx mi. Mobil 1 5w-30 ran on 2000 mile/5-6 month changes. I have ran M1 since 500 miles.

Seems that I have had nothing but problems with oil leaks using Mobil 1. The rear main is leaking, oil pan is leaking, and oil filter adapter. The rear main is leaking worse than the others. The other areas are just damp and have not formed "droplets" of oil yet.

This has happened wtih 2 other vehicles from two different auto makers.

Any suggestion or TSB's known on these leaks?

Thanks

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