man refilling motor oil on car engine bay

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Car maintenance can be a mystifying part of vehicle ownership, and there’s a wealth of misinformation out there related to oil changes. It’s important to separate fact from fiction to keep your car running smoothly and avoid unnecessary expenses. Misunderstandings and myths about oil changes can quietly drain your wallet, creating an unnecessary financial burden.

Let’s debunk some common oil change myths. Understanding these can save you time, increase the longevity of your vehicle, and promote overall safety. Not only will this information help you make better decisions about your car’s maintenance, but it can also save you money in the long run.

man refilling motor oil on car engine bay
Photo by Tim Mossholder

Myth 1: Oil Changes Every 3,000 Miles

The myth that you need to change your oil every 3,000 miles has been around for quite some time. This guideline has been blindly followed by many, leading to unnecessary oil changes and increased expenses. This myth was born during a time when motor oils weren’t as advanced as they are today, and engines required more frequent maintenance.

Today, modern synthetic oils and advanced engine technology mean that many cars can go 5,000-10,000 miles between oil changes. The 3,000-mile rule is outdated and following it can lead to unnecessary expenditure and waste of resources. Always refer to your vehicle’s manual for recommended oil change intervals.

Myth 2: Black Oil Indicates a Need for Change

Many people believe that if engine oil turns black, it needs to be changed. This myth has led to premature and unnecessary oil changes. The fact is that oil naturally darkens as it performs its job of cleaning and lubricating the engine.

In today’s times, oil color is not a reliable indicator of its effectiveness. Modern oils are formulated to last longer and their dark color may simply indicate their detergent properties are working. It’s more important to stick to the recommended oil change intervals provided by your vehicle manufacturer than to rely on the color of the oil.

Myth 3: All Cars Need the Same Type of Oil

There’s a common misconception that all cars need the same type of oil. This myth can lead to using the wrong oil for your vehicle, potentially causing engine damage and reducing performance. The truth is, different vehicles require different types of oil based on factors like the engine’s design, the car’s age, and the climate in which it’s driven.

It’s more important than ever to know the correct type of oil for your vehicle. Using the wrong oil can lead to poor fuel economy, increased emissions, and even engine damage. Always consult your owner’s manual or a trusted mechanic to determine the right oil for your car.

Myth 4: You Can Skip an Oil Change if You Don’t Drive Much

Many believe that if they don’t drive their car frequently, they can skip oil changes. This myth can lead to neglecting necessary maintenance, which over time can cause serious harm to the engine. Even if you’re not driving much, your engine oil can still degrade over time.

In today’s world, where many of us are driving less due to remote work and lifestyle changes, it’s crucial to remember that oil changes are based not just on mileage, but also on time. Over time, oil can become contaminated and lose its effectiveness. Even if you’re not hitting the mileage marker, it’s important to change your oil at least twice a year.

Myth 5: Brand of Oil Doesn’t Matter

Some people think that all motor oils are the same and that the brand doesn’t matter. This myth can lead to the use of substandard oils, which can potentially harm the engine. All oils are not created equal, and different formulations and additives can make a significant difference in performance and engine protection.

Today, with a variety of oil brands available, it’s important to choose a reputable brand that meets industry standards. A high-quality motor oil can provide better engine protection, improve fuel economy and extend the life of your vehicle. Always choose an oil brand that’s approved by your vehicle’s manufacturer.

Myth 6: High-Mileage Vehicles Need Oil Changes More Frequently

There’s a common belief that high-mileage vehicles need oil changes more frequently. This myth can cause unnecessary expenses and waste of resources. While it’s true that older engines might require more care, it doesn’t necessarily mean they need more frequent oil changes.

In the current era, with advancements in oil technology, high-quality synthetic oils can provide superior protection for high-mileage engines. The key is to choose an oil specifically designed for high-mileage vehicles, which contains additives that help rejuvenate seals, reduce oil burn-off, and improve performance. As always, follow the manufacturer’s maintenance schedule for your vehicle.

Myth 7: Synthetic Oil Causes Leaks

Some individuals believe that using synthetic oil can cause leaks. This myth can prevent people from taking advantage of the benefits of synthetic oil. Synthetic oil doesn’t cause leaks; rather, it’s better at finding existing ones because of its smaller, more uniform molecules.

With today’s high-performance engines, synthetic oil is often a better choice because it provides superior lubrication, lasts longer, and can withstand higher temperatures. If your vehicle leaks oil after switching to synthetic, it might be a sign of a pre-existing condition that needs addressing, not a reaction to the synthetic oil itself.

Myth 8: You Should Change Your Oil Before a Long Trip

A common misconception is that you should change your oil before a long trip. This myth can lead to unnecessary oil changes. Unless your vehicle is already due for an oil change based on mileage or time, a long trip alone doesn’t necessitate an oil change.

In the current times, when road trips are becoming a preferred mode of travel, it’s important to understand that long drives don’t automatically degrade your oil. However, before embarking on a long journey, it’s a good idea to perform a general vehicle check-up to ensure everything is in working order.

Myth 9: Once You Use Synthetic Oil, You Can’t Switch Back

Many people believe that once you start using synthetic oil, you can’t switch back to conventional oil. This myth discourages people from trying synthetic oil. The truth is, you can switch back and forth between synthetic and conventional oils without causing any harm to your engine.

Nowadays, with the advancements in oil technology, it’s perfectly fine to switch between synthetic and conventional oils as long as they meet the viscosity and service requirements specified in your vehicle’s owner manual. The important thing is to always use a quality oil that meets the specifications of your vehicle.

Myth 10: Engine Oil Additives Improve Performance

Some people believe that adding aftermarket additives to your oil can improve engine performance. This myth can lead to unnecessary expenses and even potential engine damage. Most modern engine oils already contain a specially designed mix of additives for optimal performance and protection.

Today, it’s important to know that unnecessary additives can actually disrupt the careful balance of additives in the oil, potentially leading to reduced performance. If you’re using a quality motor oil, there’s no need for additional additives. Stick to the oil specifications provided by your vehicle manufacturer for the best performance and protection.