Buying A Car Engine Oil? Top 5 Myths Busted

When it comes to changing your own oil, there are a lot of factors that can influence the brand of oil you choose. Your car's age, the quality of oil, as well as whether your car is diesel or not are all reasons to buy certain types of engine oil. However, there are lots of myths about buying a car engine oil that can gum up the works!

The top five myths about buying a car engine oil are about to be busted! Synthetic oil doesn't cause leakage, darker colors doesn't mean the oil is ruined, and you can always go back from synthetics. Bottled oil isn't better than bulk, and you don't necessarily need to change your oil every 3,000 miles on the dot!

Find out more by reading on and finding just how far off these myths are from reality!

Myth One: Synthetic Oil Causes Leakage

When it comes to this myth, it's best to bust it right out the gates. When synthetic oils were first on the market in the 1970's, they did indeed wreak havoc and cause leakage. However, with modern technology and advancements with the compounds, it's just not true anymore! 

The latest synthetic oils are some of the most popular options on the market today. Not to mention big brands like Total car engine oil and other top competitors are making safer, more reliable synthetic options!

So no, synthetic oils don't cause leakage on your car and are definitely a great option as a car engine oil for you.

Myth Two: Dark Means the Oil is Ruined

Some people really believe that if the engine oil is dark then it is ruined. However, that just isn't the case! Here are some viable reasons why your car engine oil may be darker: 

  • Soot: Soot is a general byproduct of having a combustion engine. However, having a bit of soot in your oil doesn't mean it is bad! You don't have to run out and get brand new car engine oil. 
  • Oxidation: Normal oxidation can darken the color of your oil. When oxygen molecules come into contact with some of the oil molecules, it breaks them down and makes the oil appear darker. 
  • Heat: There are some additives in motor oil that react to being put through heat more than other brands. So not only will oxidation occur, but heat can actually speed up that process! 
car engine oil


So though it's great to change your oil as part of your basic car maintenance, you don't just have to do it because it is a little darker! 

Myth Three: There is No Going Back from Synthetics

This is just an outrageous myth about car engine oil. There are such things as synthetic blends, which are a mixture of conventional oils, as well as synthetic oils. You don't have to be married to one type of oil for your car forever!

Myth Four: Bottled Oil is Better Than Bulk Oil

Everyone is entitled to their preferences. However, when it comes to bottled oil being better than bulk, it just isn't true! If you purchase your oil from a well-known company, then you don't need to worry about the packaging! Just worry about the quality of your oil.

Myth Five: Change Your Oil After 3,000 Miles ALWAYS!

It is definitely true that you need to change your oil in order to keep your engine running smoothly. However, it doesn't mean it HAS to be every 3,000 miles. It depends upon the type of oil, the type of service you had last, as well as how often you drive your car and manufacturer recommendations

Car Engine Oil Myths Busted!

There are lots of myths out there about different types of car engine oil, how often you should change your oil, as well as what they can do to your engine! But now that we've busted these myths for you, you won't have to fall for these silly misunderstandings anymore! 

Change your oil, change your oil filter, and take care of your car better now that you know the truth about car engine oil!

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Hanna Embry

As a freelance writer, I have been creating content and writing blogs for over a decade. Not only do I love writing about cars, but I also have experience in many other fields. I have been a guest writer on many popular blogs, as well as ghostwritten novels. When I’m not writing, you can find me with my family, reading a book, or working on an art project.