WHAT'S INSIDE: UNDER THE HOOD

The Under the Hood Channel explores the systems that make your car function correctly. Learn about car parts and systems and how to do routine maintenance.
  • Aftermarket Accessories & Customization
  • Auto Manufacturing
  • Car Part Longevity
  • Car Trends & Innovations
  • Cost of Car Ownership
  • Diagnosing Car Problems
  • Engines
  • Exhaust & Emissions
  • Motorcycle Parts & Accessories
  • Options
  • More Topics
FEATURED: UNDER THE HOOD
Be Your Own Mechanic

Diesel engines and gas engines work in different ways. Learn how diesel fuel injection is different from this article.

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Quiz: Should auto tires have a sell-by date?

At grocery store, we are used to seeing many products with sell-by dates or even "good before" dates. Should a similar dating process be applied to auto tires? How knowledgeable are you on this topic? Take this quiz and find out!

How Self-inflating Tires Work

Self-inflating tires perform two crucial functions: They automatically maintain ideal tire pressure and they allow you to alter psi on the fly to adjust to changing terrain. Learn about self-inflating tires.

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