Ramma2 Posted February 8, 2005 Report Share Posted February 8, 2005 I have a 1995 Olds cutlass Supreme, its the vin M 3100 motor so I belive that it does not have the evil o ring oil leak I read about. Anyways its leaking oil, lots. About 1.5 quarts per 3000 miles. I do not believe that it is the lower intake manifold gasket, I have already changed that. What should I suspect next? Oil pan or rear seal? Both of which I assume are a pita to change. And information is much appreciated. Car is running great at 171k miles, I don't want it to go away yet! Quote Link to comment Share on other sites More sharing options...
Ramma2 Posted February 8, 2005 Author Report Share Posted February 8, 2005 I'm getting some info from this article: http://www.w-body.com/service/oil-pump-seal.html It doesn't have my motor listed. Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted February 8, 2005 Report Share Posted February 8, 2005 You still have the oil pump drive & o-ring, so an oil leak there IS possible. Quote Link to comment Share on other sites More sharing options...
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