So I have a 94 civic ex coupe, had a newer motor put in & the mechanic who put it obviously didnt replace the seals or gaskets. Since I have had the car & been driving it I can smell oil burning sometimes, so I would stop the car a few times & look under it & oil is dripping down on the headers. It looks like its either a rear main seal or oil pan gasket. Im going to get some brake cleaner & clean the hell out of it tomorrow & try to trace the leak. So heres the thing, im trying not to replace the rear main seal because its about $600 for a shop to do it. If its the oil pan gasket im doing it myself, easy fix, drop exhaust, drain oil, remove oil pan bolts, drop oil pan & remove the old gasket & replace with new gasket. Thats easy but what id like to know if theres a sealer I can put where rear main seal is leaking if thats the problem, seeing how im pulling motor out & doing a b18 swap in december. I need advice on what I should do and if I can use a sealer to seal up the leak & how long will it last.... PLEASE HELP!!!!![]()