When you head to the mechanic for an oil change, they'll ask you whether your vehicle needs synthetic or regular oil. If you're a first-time car owner, it's crucial to understand the oil composition or viscosity rating for the best performance. This comprehensive guide discusses how viscosity affects your engine and how to determine the best oil for your vehicle.

How Does Viscosity Affect the Engine?

It was previously thought that thicker oil would coat metal parts in the engine better, thus leading to an overall better experience. However, the thickness of the oil doesn't matter. What matters most is following the manufacturer's recommendations. Before heading to the mechanic for an oil change, make sure to read the owner's manual for the most accurate information.

When the viscosity is too thick, it may circulate slowly, and when it's too thin, it may not properly lubricate the parts. The right oil viscosity will run smoothly through the engine without issues. It will ensure that all metal parts in the engine don't rub together and function accordingly for a better driving experience.

Does the Weather Affect Viscosity?

In warmer climates, such as in Hawaii, it's best to use a thicker oil. Thicker oils start at a higher viscosity, which means that the oil won't become too thin when the car heats up. Additionally, if you use your car to tow RVs, boats, or any other recreational vehicle uphill, the added pull won't make the oil become too thin.

How Can I Read the Range of Viscosity?

When reading the range, you'll notice a number followed by "W" and a second number at the end. Common readings are 5W-30 and 10W-30. The number before the W describes the oil's viscosity at low temperatures. A low number means the oil is thinner. Thinner oil makes it easier to start the car when the temperature dips.

The W stands for winter and the second number indicates the oil's thickness when the engine reaches its normal temperature, which is about 212 degrees Fahrenheit. While selecting a thicker or thinner oil won't severely harm the engine, it's better to use the recommended grading to avoid issues.

If you're due for an oil change, trust the mechanics at Contractors' Equipment & Service Corp. Serving residents throughout Waipahu, HI, these professionals inspect and perform engine repairs. If the wrong oil causes damage to the engine, these mechanics will pinpoint the issue and repair it. Call (808) 676-7566 to schedule an appointment or visit their website to browse their services.