What a mess. This product is of very poor quality. The sealing surfaces of the castings were so bad that the oil filter barely made full contact when screwed in, but I figured there were plenty of these on sale so that shouldn't be a problem. I installed this part very carefully not to overtighten as it is a cast and not solid aluminum. Installed the filter, filled the engine with oil, started the car to check for leaks and as soon as I got under the car, oil was pouring over the back of the…