Car Myths That Everyone Believes Debunked

Published on March 1, 2025

by Andrew Maclean

When it comes to cars, there are countless myths and misconceptions that have been passed down from generation to generation. Whether it’s about improving performance or saving money, car myths always seem to be circulating. However, not all of these so-called ‘facts’ are true, and some can actually do more harm than good. So, let’s take a closer look at some of the most common car myths that everyone believes and debunk them once and for all.Car Myths That Everyone Believes Debunked

The Myth of Premium Gasoline

One of the most persistent myths about cars is that using premium gasoline will give you better performance and fuel economy. Many people believe that premium gas is worth the extra cost, but the truth is, most vehicles do not require it and will run just fine on regular gas.

The difference between regular and premium gasoline is the octane rating. Octane is a hydrocarbon compound that prevents the engine from knocking or pinging. However, most modern engines are designed to adjust their performance based on the type of fuel being used, and premium gas does not necessarily provide any added benefits.

Oil Changes Every 3,000 Miles

Another common car myth is that you need to change your oil every 3,000 miles. While this used to be true for older cars, modern vehicles can go much longer between oil changes. The recommended interval for oil changes varies depending on the manufacturer, but it is usually between 5,000 to 10,000 miles.

Changing your oil too frequently can actually be damaging to your car and a waste of money. Newer engines use synthetic oil, which can last longer and provide better protection for your engine. So, don’t fall for the 3,000-mile oil change myth and check your owner’s manual for the recommended interval for your specific vehicle.

Letting Your Car Idle to Warm Up

It’s a common belief that you need to let your car idle for several minutes before driving to allow the engine to warm up. However, this is not only a waste of fuel, but it can also do more harm than good. Modern engines do not need to warm up before driving and will reach their optimal temperature faster when being driven.

Idling your car for too long can actually lead to a buildup of carbon deposits in the engine, which can cause damage over time. So, instead of idling, simply drive gently for the first few minutes until your engine reaches its ideal temperature.

All Tire Pressure Gauges Are the Same

Many car owners believe that all tire pressure gauges are the same and can provide accurate readings. However, this is not the case. Cheap or old tire pressure gauges can be inaccurate and give you false readings, which can lead to incorrect tire pressure and affect your car’s performance.

To ensure accurate readings, it’s best to invest in a high-quality tire pressure gauge and regularly check your tire pressure to avoid any potential safety hazards on the road.

Using a Cell Phone at a Gas Station is Dangerous

You may have heard that using a cell phone while at a gas station can lead to a fire or explosion. However, this is just a myth and has been debunked by multiple studies. The real risk of fires at gas stations comes from static electricity, not cell phones.

While using your phone at a gas station is not hazardous, it’s still essential to follow proper safety measures, such as not smoking and turning off your engine while refueling.

Conclusion

Car myths may seem like harmless beliefs, but they can actually have a significant impact on your vehicle’s performance and safety. It’s essential to do your research and not fall for these commonly believed falsehoods. Remember to always refer to your owner’s manual for accurate information about your specific vehicle. Don’t let these myths drive you into making costly and unnecessary decisions for your car.