Washing a sink full of dishes always left me with clean nails. Not a motorcycle guy. I drove my first 528e, purchased with 150 K miles ,unknown history, for 12 yrs 200 K more miles. Maintained to the level that it always made it home under its own power. I was working in my driveway with basic hand tools, a Bentley manual, and an enthusiasts internet forum. It was my daily driver and road car. I went to shows and events. I met some fine people. I applaud your DIY spirit. Rock on. Somewhere,somehow you have picked up coping skills