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3 Minutes Read

Drivers Beware: The Engine Oil Types You Must Avoid

Worst engine oils warning: pouring oil into car engine with funnel.


Understanding the Dangers of Bad Engine Oil Choices

Every vehicle owner wants to ensure their car runs smoothly for years to come. However, an alarming amount of engine failures—over 10%—are attributed to the use of poor-quality engine oils. In this article, we'll delve into some of the worst types of oils still available on store shelves and highlight essential facts and myths every driver should know.


In STOP Using This Engine Oil – Serious WARNING for Drivers, the video dives into the dangers of poor-quality oils, highlighting crucial insights that we’re expanding on in this article.

Engine Oil Types That Should Be Avoided

Identifying the right engine oil for your vehicle is crucial. First on the list of oils to avoid is non-detergent oil. This outdated product, primarily used before the invention of oil filters, lacks any cleaning agents. Pouring it into a modern engine is akin to inviting sludge to a heating party. Such oils can lead to costly repairs, including sludge removal costs between $500 and $1,200 or a total engine replacement ranging from $3,500 to $7,000.

The second culprit is using oil with the wrong viscosity. Oil that's too thick can grind engine parts during cold starts, while oil that's too thin can quickly break down under pressure and high heat. Choosing the correct viscosity based on your vehicle type is essential; using the wrong one can lead to expensive repairs, including those costing up to $1,500.

What to Watch Out For When Buying Oil

When buying engine oil, look for the certification. Some oils labeled with APIs and older ratings lack the modern protective measures necessary for today’s engines. Using older API rated oils can lead to serious engine issues, including damaged catalytic converters that can cost thousands to replace. Similarly, drivers must be cautious of high mileage oils used in low mileage engines. While these oils contain seal conditioners meant to extend engine life, they can harm engines that are still in good condition, leading to potential repair costs up to $8000 due to sludge buildup.

Misperceptions About Engine Oil You May Believe

With so much information, it’s easy to fall for myths. Engine oil additives are often touted as performance boosters, but modern oils already contain all necessary additives. Adding more can do more harm than good. Another common misconception is that only manufacturer-recommended oils can suffice for your vehicle. What matters is the grade and specifications, not the brand name.

Additionally, many people think that milky or foamy oil simply indicates wear; however, it often signals severe internal issues such as coolant leaking into the engine. Maintaining vigilance is crucial; inspecting your oil regularly can avert costly repairs.

How to Ensure You’re Using the Right Oil

To maintain your vehicle’s engine, selecting the right oil is essential. Begin by checking the oil cap, which often indicates the recommended oil grade. Next, consult your owner’s manual for manufacturer specifications. Lastly, reach out to mechanics or use trusted online resources to verify what oil type suits your vehicle. By following these steps, you can easily navigate the often confusing world of engine oil.

Protecting Your Investment: The Importance of Good Oil Choices

Using the right engine oil is not just about following a manual; it’s about protecting your valuable investment. Bad oil can silently wreak havoc on engines, leading to diminishing performance and reliability. Don’t underestimate the importance of quality and certification when choosing your oil.

From avoiding non-detergent oils to eliminating the use of high mileage oil in new engines, making informed decisions will save you time and money in the long run. Plus, staying educated about common oil myths will give you an edge over those who might not pay enough attention to their vehicle’s maintenance.

Be conscious of what you're pouring into your engine, and don't let poor choices lead to expensive repairs in the future. Every decision you make regarding oil can significantly influence your engine's health and longevity.


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