Maintain the life of your car with regular maintenance and tune-ups. Learn how to check the spark plugs with expert auto maintenance tips in this important free car repair video. Expert: Nathan McCullough Bio: Nathan McCullough graduated … Tools I don’t use often or aren’t subject to abuse, I buy the cheapest I find at my local automotive store. I guess I’m not much of an expert either even if I used to work on cars, but now mostly on motorcycles and building engines… …