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Free oil changes and scheduled maintenance sound like a great perk when you're buying a new car. But those complimentary service plans are built around a business model — and the dealership's interests are baked in from the start.
Millions of American drivers pump premium fuel into cars that were never designed to use it, convinced they're protecting their engine or boosting performance. The science behind octane ratings tells a very different story — and the marketing behind premium fuel tells an even more interesting one.
Rotate your tires every 5,000 to 7,500 miles — it's one of the most consistently repeated pieces of car maintenance advice out there. But that interval was developed for rear-wheel-drive vehicles with a completely different tire technology than what's on your car today. Depending on what you drive, following this advice blindly could actually make your wear problem worse.
The rear center seat has been called the safest spot in the car for so long that most people treat it as settled fact. But modern crash research tells a more complicated story — one that depends on the vehicle, the type of crash, and what safety equipment is actually installed in that seat.
Car seats come with printed expiration dates that most parents never know to check. The materials inside break down over time in ways you can't see, and buying a secondhand seat could carry risks nobody warned you about. Here's what the actual guidelines say — and why they exist.