5 Car Maintenance Myths You Probably Still Believe

 Falling for these car maintenance myths can cost you time, money, and even put your safety at risk. In this blog, we’ll bust five of the most common myths and help you understand what your car really needs.

Myth 1: You Should Change Your Oil Every 3,000 Kilometers

This advice used to be true, back when engines were less efficient and oil technology wasn’t as advanced. But today, it’s outdated.

What’s the truth?

• Most modern cars, especially those using synthetic oil, can go 8,000 to 15,000 kilometers between oil changes.
  

• Always follow the manufacturer’s guidelines in your vehicle’s manual.
  

• Over-changing your oil is not just wasteful; it’s bad for the environment and your wallet.
  

Why this myth persists: Many quick-lube shops still promote the 3,000-km rule because it means more frequent service visits. But with better engine designs and synthetic oils, newer vehicles simply don’t need oil changes that often.

Myth 2: Premium Fuel Will Improve Performance in Any Car

You might think that using premium fuel will make your car run better. After all, it costs more,  it must be better, right? Not necessarily.

Here’s what really matters:

• If your car does not require premium fuel, you’ll likely see no performance or mileage benefits from using it.
  

• Premium fuel is designed for high-performance engines that require higher octane levels to avoid knocking.
  

• Using it in a regular engine? You’re just wasting money.
  

Check your manual: If it says “recommended,” regular is fine. If it says “required,” then use premium. Otherwise, you’re not gaining anything.

Myth 3: Letting Your Car Warm Up Before Driving Is Essential

This one dates back to carbureted engines from decades ago. Many people still idle their cars in the driveway for 10 minutes “to warm it up.”

Reality check:

• Modern engines are fuel-injected and computer-controlled. They don’t need long warm-ups.
  

• In fact, excessive idling wastes fuel, adds unnecessary wear to your engine, and increases emissions
  

• The best way to warm up your car is to drive it gently for the first few minutes.
  

In colder climates: 30 seconds of idling is usually enough before you start moving. Let the engine warm up naturally as you drive.

Myth 4: You Have to Service Your Car at the Dealership to Keep the Warranty

Many people think that going to an independent garage or doing their own maintenance voids the warranty. This isn’t true in most cases.

The truth is:

• You can maintain your warranty by having your car serviced anywhere as long as it’s done properly.
  

• Just be sure to keep records and use approved parts.
  

• Manufacturers can’t force you to use their dealerships unless the service is provided for free.
  

Pro tip: Ask for itemized invoices and keep them in a safe place, this documentation is often enough to prove that your car has been serviced according to requirements. 

Myth 5: A Dead Battery Means You Need a New One

It’s frustrating when your car won’t start and the battery is the most common culprit. But don’t rush to replace it just yet.

What you should know:

• A dead battery could be caused by leaving the lights on, a faulty alternator, and loose or corroded terminals
  

• Batteries have a typical lifespan of 3–5 years, but that doesn’t mean one dead start is the end.
  

• Before replacing it, have a professional do a battery and charging system test.
  

Sometimes a simple recharge or cleaning the terminals brings your battery back to life.

Bonus Tips: What You Should Be Doing Instead

Now that you know what not to do, here’s what you should focus on to keep your car in top condition:

•  Follow the owner's manual: It has the correct maintenance schedule and fluid recommendations.

•  Check tire pressure monthly: Under-inflated tires reduce fuel economy and wear faster.

•  Inspect your brakes regularly: Squeaky or grinding brakes mean it’s time for service.

•  Replace wiper blades every 6–12 months: Visibility is key to safety.

•  Keep fluids topped up: Brake fluid, coolant, windshield washer, and oil should be checked routinely.

•  Wash your car regularly: Especially in dusty or coastal environments like many areas in the UAE.

Conclusion

Believing car maintenance myths can lead to unnecessary repairs, wasted money, and reduced vehicle performance. By staying informed and understanding the real needs of your car, you’ll not only save money but also extend the life of your vehicle.

So next time someone tells you to “change your oil every 3,000 km,” smile and thank them, then follow the advice that’s actually backed by today’s automotive science.