06-07-2006, 11:24 PM
at Toyota, we changed the washer with every oil change. I don't see that as necessary, but it prolly is a good practice once a year or something. Hell, I didn't even know the supra had one before I worked there, and I'd had the car about 3 years at that point. IIRC, Thayer's had been on so long that it actually disintegrated and then he had an oil leak, but the Toyota gaskets aren't metal, they are actual gasket material.