Car oil lubricates the engine so it can run smoothly while preventing other parts from overheating. Regular oil changes are necessary because, over time, the oil wears down and becomes less effective. While you should consult your owner’s manual to determine how often an oil change is necessary, you should check oil levels once a month. If you wait too long to change your oil, you may experience some of these symptoms and should bring your vehicle to a mechanic.

When Should You Change Your Car’s Oil?

1. Loud Engine

Any abnormal noise that your car may make should be addressed by a professional. A well-lubricated engine doesn’t make much noise. So, a loud engine, knocking, or rumbling are all signs that your oil isn’t providing a proper barrier between the engine and other parts.

2. Dirty or Low Oil 

When you check your oil, it should be a particle-free amber color. Over time, the oil picks up dirt and grime from the engine. If the oil is dark or dirty, it won’t lubricate properly, and you should schedule an oil change. Also, because oil is used in the engine, low oil levels can trigger your check engine light. There are many reasons for this light to go on, so a mechanic should read the signal to determine the cause of the light.

3. Visible Exhaust

Car exhaust is usually only visible during cold temperatures. If you notice visible smoke coming from your tailpipe, there could be an oil leak in your car. This can damage your engine and result in low oil levels.

4. Rough Idling

Engine lubrication also keeps your ride smooth. If your car is shaking while you’re idling—like at a stop sign or in traffic—schedule an oil change as soon as you can.

Trust the trained technicians at Crescent Ford for all your oil change needs. You don’t need to be car shopping to experience their friendly service—this High-Point, NC-based dealership is also a supplier of replacement parts and accessories, and general car maintenance. Learn more about their services online, or call (336) 869-2181 to schedule an oil change.