Many years ago, you could disconnect a battery cable while the engine was running to test the alternator in your car. If the engine continued to run, that proved the alternator was working. But it’s a test you should never try on a modern car because they are equipped with …

Dishwashing liquid is designed to aggressively attack and break down dried food, oil and grease. That’s great for dishes—not so great for car paint. Car paint, clear coat and car wax contain oils and resins that maintain the paint’s integrity and filter out harmful UV rays. When you wash your …

Some people put extra large sound systems in their cars to give a bigger subwoofer effect. The problem with this is that not only do some people find loud music annoying, these big audio systems can actually make your alternator and charging system work overtime, and as a result, will rapidly drain …