Rear main seal leak

Asked by Christina Oct 27, 2019 at 05:38 PM

Question type: General

Is Blue Devil recommended to be used for rear
seal leak?

3 Answers

20,590

Blue Devil is a band aid at best. It might work and for some time, but the seal will start leaking again at some point. If you plan on keeping the vehicle long term, repair it properly by having the gasket replaced or just keep adding oil.

348,105

You can try but you can't fix a rear main seal with a bottle of gunk.

256,505

Stuff like that is only good for seals that have turned hard from lack of use, most rear mains when they start leaking just have to be replaced, and if the crankshaft is grooved a speedy sleeve installed.

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