View post: VW Offers 2026 Volkswagen Tiguan S Lease For March From $…/mo How often you need to replace the spark plugs depends on a variety of factors like the type of car you drive, how you drive it, ...

Spark plugs are a key component of your gasoline engine, and they have a key role in the ignition process. How long can you expect them to last?

This used to be a great DIY task, but not any more. Spark plugs often come pre-gapped, but in the trade, we never trusted that what came out of the box was still accurate. You have to account for ...