The Differences Between Vehicle Oil Types

Knowing the differences between the oil types on the market helps you determine the best motor oil for your automobile. Your determination should start by checking your owner’s manual to see what your vehicle manufacturer recommends. After this, Mark’s Auto Service advises that there are other considerations to take into account when determining the best motor oil to have in the engine. We are going to list the four oil types below and what makes them different from each other.


Conventional motor oil is the original motor oil that has been around for over 100 years. It is extracted from crude in the ground. This motor oil does not contain any additives. It works well in standard engines that do not require high-mileage motor oil. Conventional oil is the most affordable on the market and it needs to be changed every 3,000 miles. Change the conventional oil every six months if you do not drive 3,000 miles in six months.


High-mileage motor oil is conventional oil that contains additives designed to prevent older engines from leaking oil. This motor oil is recommended for engines that have 75,000 miles or more on them. This oil needs to be changed every 3,000 miles just like conventional oil needs to be changed every 3,000 miles. This oil does an excellent job of protecting older engines, and, again, it helps ensure that your engine does not start to leak oil.


Synthetic motor oil is a combination of natural crude and organic ingredients that are combined in a lab to create this oil. Synthetic oil is designed to remain viscous longer, so you do not need to have the oil changed as often. Synthetic oil contains additives that help it protect the engine better if it is a high-performance engine, an old engine, or an engine that operates in an area that experiences extreme temperatures in the summer and winter.

Synthetic Blend

Finally, a synthetic blend is a combination of synthetic oil and conventional oil. This combination works well for people who are looking for a little better protection than conventional oil but not at the synthetic oil price. This oil is a happy medium between the two including when it needs to be changed. It lasts longer than conventional but not as long as synthetic.

Call Mark’s Auto Service in Loves Park, Belvidere, Roscoe, and Rockford, IL, or Loves Park, IL, today to discuss the best motor oil for your car, truck, or SUV. We will take into account your vehicle manufacturer’s recommendations, your daily commute, and how you drive your automobile.


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