7 Common Car Maintenance Myths

mechanic changing a tireWhen it comes to keeping your car or truck in top shape, proper maintenance is key. But there are a lot of myths floating around the auto industry that can lead you to spend more money on unnecessary services. These misconceptions not only waste your time and resources but could also harm your vehicle over time. Here are some common myths you should be aware of.

1. Changing the Oil Every 3,000 Miles

This used to be the standard advice, but with modern engines and synthetic oils, most vehicles can go much longer between oil changes. In fact, many manufacturers recommend intervals as high as 7,500 miles or even more. Always check your owner’s manual for the correct schedule. Over-changing oil can actually be wasteful and costly if not needed.

2. Flush the Coolant with Every Oil Change

Coolant flushes aren’t something you need to do every time you change your oil. They’re typically recommended every 60,000 miles or five years, depending on the vehicle. Don’t let a mechanic pressure you into doing this more frequently than necessary—stick to the manufacturer's guidelines to save money and avoid damage.

3. Always Go for Premium Fuel

If your car doesn’t require premium fuel, using it won’t improve performance or engine health. In fact, it could be a waste of money. Most cars are designed to run efficiently on regular gasoline (87 octane). Check your owner’s manual to see what type of fuel your vehicle needs.

4. Inflate Tires to the Number on the Sidewall

The number on your tire’s sidewall is the maximum pressure it can handle, not the recommended pressure. The correct inflation level is usually found on the driver’s side door jamb. Using the right pressure improves handling, fuel efficiency, and tire life. Make it a habit to check your tire pressure monthly.

5. Change All Four Tires Together

There’s no rule that says all four tires must be replaced at once. As long as your remaining tires are in good condition and have similar tread depth, you can replace them one at a time. However, if you're replacing two, make sure they're from the same brand and model for consistent performance.

6. You Can Be Lax About the Timing Belt

The timing belt is a critical component that can cause serious engine damage if it fails. Many people assume it only needs attention after 60,000 miles, but it’s better to check it regularly—especially if you drive in harsh conditions. Following the manufacturer's recommendations can prevent expensive repairs down the road.

7. Warranties Tied to Dealer Maintenance

A common misconception is that you must get all maintenance done at the dealership to keep your warranty valid. This isn’t true. As long as you follow the manufacturer’s service schedule and keep records, you can choose any qualified repair shop. This gives you more flexibility and often saves money.

Whether you need an oil change, tire service, or routine maintenance, it’s important to stay informed and avoid these common myths. At DaSilva’s Auto Body, we provide reliable and honest service to keep your vehicle running smoothly. Contact us today to schedule your next appointment and take control of your car’s care.

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