Description
The rear main oil seal or crankshaft seals is one of the most difficult to replace. When they do your car will be marking it's territory with oil puddles/drops wherever you park. Apart from making a mess, it can also cause oil to come in contact with the clutch disc, which can deteriorate the material, and if the oil level isn't periodically checked, major leaks can cause extensive internal engine or turbo damage. Replace yours and keep your oil in your engine.
The perfect time to replace this seal is when you are doing a clutch replacement job. Even if the seal has yet to fail, it saves you from tear downs in the future.