The average car engine will operate between 195 and 220 degrees. Oil cools and lubricates the engine to prevent it from overheating. However, it will burn up and collect dirt over time, turning to sludge that can’t absorb heat effectively. Scheduling an oil change when you notice the following signs will keep your engine in peak condition.

How to Tell Your Car Needs an Oil Change

1. Knocking Sounds

Oil lubricates the crankshaft and bearings to keep the engine from overheating due to friction. When levels run low, these metal components will grind against each other, resulting in a loud knocking sound as you’re driving. This also leads to extreme heat that can deform bearings, pistons, and rods and destroy the engine. If you hear a knocking noise, it necessitates an immediate oil change.

2. Low Oil Levels

Older cars typically require oil changes every 3,000 miles. However, many newer models can last up to 10,000 miles. As your vehicle nears its recommended limit between changes, you should monitor the oil levels regularly. Most new vehicles display the remaining oil life on the dashboard. If you have an older vehicle, you can measure the levels via the dipstick. When the engine is cold, take the dipstick out, wipe off the oil, and put the dipstick back in. Pull it back out again and look where the oil is on the end of the stick—if it’s near the “low” or “minimum” line, schedule an appointment with your mechanic.

3. Exhaust Smoke

The exhaust pipe in the back of your car should not emit any smoke. While other problems can cause this, blueish smoke could indicate burning oil. This likely means oil is leaking or clogged. Not only will the issue require an oil change, but it’ll likely necessitate additional repairs to fix loose or cracked seals, piston rings, or cylinder walls.

When you notice any of these signs, bring your car to Stillwater Auto Clinic for an oil change. Since 1977, the shop has provided auto maintenance at competitive rates for Washington County, MN, drivers. Their large facility can accommodate numerous vehicles at one time, minimizing how long you have to wait. Call (651) 351-7188 to schedule an appointment for an oil change, and visit their website for details on their services.