We earn commissions from purchases you make using links in our articles. Learn more. You don't have to pay a mechanic to change your spark plugs. Giving your engine fresh spark plugs should be part of ...

We may receive a commission on purchases made from links. When it comes to engine care 101, a spark plug replacement — also referred to as a tune-up — is an essential task. Spark plugs, as the name ...

Harbor Freight has more than 1,500 locations in the United States, where you can find plenty of tools to help you with automotive DIY projects. For heavy-duty applications like drilling through steel ...