Changing spark plugs is standard maintenance on gasoline-powered cars. Can you clean and reuse old spark plugs, or should you go for brand new ones?

There's something oddly satisfying about pulling an old spark plug out of an engine, but what do you do with the plug once it's out? Maybe you're having second thoughts about changing the spark plug ...

This guide to choosing a pressure washer lists the pros and cons of gas, corded, and battery pressure washers, and details ...