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RE: DIY ~ Engine Oil Change ~ DIY Saving Time And Money ~ DIY
also, you're supposed to replace that copper crush washer every time. most places don't. badly installed oil plugs is the main reason I do my own oil, and it gives you a chance to inspect the engine, transmission, steering rack & suspension. and with a little more gear, you can do diff & trans fluids too.
I normally get away with reusing the crush washer by turning it over. If I notice a little leakage then I change it. Definitely a cross threaded drain plug can become a serious nightmare. I just did the rear diff about 6 months ago and I just noticed what looks like the rear seal of my transfer case is leaking a little bit so that might be next on the list. At 215k miles it could be time to do so.
I had a place forget to put my oil cap back on a long time ago. Let’s just say it was a huge mess. My little Geo Prism puked oil everywhere. Lol