5 Common Myths About Car Maintenance

Car maintenance can be confusing, especially with so much outdated or incorrect advice floating around. At DM Motorsports in Midland Mint Hill, NC, we hear a lot of myths from customers—and we’re here to set the record straight. Don’t let these common misconceptions lead to unnecessary expenses or damage to your vehicle.

Common Myth 1. You Must Change Your Oil Every 3,000 Miles

This is probably the most persistent common myth. While it used to be true decades ago, modern engines and synthetic oils have extended oil change intervals significantly. Most vehicles today can go 5,000–7,500 miles, or even more depending on the manufacturer’s guidelines. Always check your owner’s manual or ask a trusted mechanic.

Common Myth 2. Premium Gas Makes Your Car Run Better

Unless your car specifically requires high-octane fuel (check your manual), premium gas won’t improve performance or fuel efficiency. Using regular gas in a car designed for it will work just as well and save you money at the pump.

Common Myth 3. Letting Your Car Warm Up Improves Engine Health

Modern engines are built to be driven shortly after startup. Extended idling only wastes fuel and can increase engine wear. Instead, start the car and drive gently for the first few minutes to warm things up efficiently.

Common Myth 4. You Have to Go to the Dealership for Maintenance

Many drivers believe dealership service is required to keep warranties valid. That’s false. As long as you maintain proper records and use a reputable shop like DM Motorsports, your warranty stays protected.

Common Myth 5. You Should Inflate Tires to the Number on the Sidewall

That number is the maximum pressure, not the recommended one. For best performance and safety, check the sticker inside your driver’s side door or the owner's manual for the correct tire pressure.

Don’t let myths cost you money. Trust the experienced team at DM Motorsports for honest, accurate advice and expert maintenance in Midland Mint Hill, NC. Schedule your service today!