As a car owner, you’re warned frequently about the dangers of skipping oil changes. However, you may not know the purpose of this maintenance and how often your vehicle needs it. Here’s what you should know about oil and how it keeps your car functioning.

A Guide to Oil Changes

Why does my car need motor oil?

The engine is made up of moving metal parts. Motor oil provides lubrication between these components so that they can move at high speeds without succumbing to friction. Without adequate oil, these parts can overheat, break apart, or lock up. 

Why are oil changes necessary?

Newly added oil is watery and has a dark amber color. As it travels through the motor, it picks up dirt, dust, and metal flakes that could damage parts or cause the vehicle to overheat.

Over time, the build up of contaminants, the breakdown of the additives in the oil, and continuous exposure to high temperatures cause the oil to become blacker and more viscous. Consequently, it is no longer able to keep the engine properly lubricated, clean, and cool.

How can I tell if my oil is old?

Modern vehicles keep digital track of your oil. When it gets old or is too low, you’ll see a notification light or message appear on your dashboard.

However, it’s still recommended to manually check the oil at least once a month. Do this by locating and removing the oil dipstick. While a black color isn’t necessarily worrisome, head to the auto shop if the oil feels gritty or has developed a milky appearance. 

How often should I schedule oil changes?

Although oil changes were once standard for practically all vehicles every 3,000 miles, this is no longer the case. Today’s engines are designed to run two to five times longer without swapping out the oil.

The best resource for your vehicle is the owner’s manual. It will tell you the expected number of miles you can travel between changes and the driving conditions that could alter this amount. 

When it’s time for an oil change, bring your car to Branford Radiator Repair Service in New Haven County, CT. This locally owned auto shop has provided trusted radiator and other automotive repairs for over three decades. They offer affordable and competitive pricing on fixes and parts, as well as same-day service. Visit their website to learn more about the work they provide, or call (203) 488-7346 to schedule an appointment.