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    Is Thicker Oil Better For High Mileage Cars: SHOULD I USE THICKER OIL IN A HIGH MILEAGE ENGINE?

    Are you driving a high mileage car and wondering whether thicker oil is the way to go? With so many conflicting opinions out there, it can be hard to know what’s best for your vehicle. Should you stick with the manufacturer’s recommendations or experiment with using a heavier weight oil? In this blog post, we’ll take an in-depth look at the benefits and drawbacks of thick oil use in high mileage engines. So buckle up and let’s dive into the world of motor oils!

    What is a high mileage engine?

    A high-mileage engine is one that’s been driven a lot and is likely to require more oil than a newer, less-driven engine. Most carmakers recommend using 10W-30 or even 5W-20 oil in a high mileage engine. However, there are also those who swear by using thicker oils, like 15W-40, in an older engine to prevent wear and tear.

    There is no right or wrong answer when it comes to using thicker oils in a high mileage engine – it all depends on the specific vehicle, driving habits, and oil quality. Some engines may not be able to handle the extra weight of a thicker oil and may experience decreased performance or possible catastrophes. So before making any changes to your engine’s oil formulation, make sure you consult your carmaker or motor specialist first.

    What are the benefits of using thicker oil in a high mileage engine?

    If your car has a high mileage engine, you may be wondering if using thicker oil is better for it. Here are some benefits to using thicker oil in a high mileage engine:

    1. Better Fuel Economy: When your engine is working harder to push more fuel through the engine, it can result in poorer fuel economy. Thicker oil will help reduce this issue by providing a layer of protection between the piston and the cylinder walls that reduces friction.

    2. Increased Durability: Thicker oil will also help increase the durability of your engine because it resists wear and tear better. This means that your engine will last longer before needing to be rebuilt or replaced due to damage caused by excessive vibrations or heat.

    3. Reduced Maintenance Costs: If you use thick enough oil, your engine will not require as much maintenance over time, which can save you money on repairs and replacements. In addition, using thicker oil will help reduce metal fatigue and make your car easier to work on should something go wrong.

    The downsides of using thicker oil in a high mileage engine

    Oil is one of the most important parts of your car, and it’s essential that you use the right type and amount of oil for your vehicle. However, using too much thicker oil can have negative consequences for a high-mileage engine. Here are some of the downsides:

    1. Your engine may not get as much oil flow as it needs. This can lead to decreased performance, reduced fuel efficiency, and even failure.

    2. The engine may wear faster due to less lubrication. This can cause premature wear on critical components, such as bearings or valve guides.

    3. Thickened oils can form sludge and clog filters over time, which can decrease engine performance and ultimately lead to a breakdown in the system.


    There is no one-size-fits-all answer to this question, as the type and condition of your vehicle will affect the kind of oil you should use. However, if your car has a high mileage and is in need of extensive repair or maintenance, using a thicker oil might be the best solution. This will protect your engine from wear and tear and ensure that it lasts longer.

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