Signs and Symptoms You Need Oil Change Services

Check Engine or Oil Change Light

One of the most obvious signs is when your dashboard’s oil change or check engine light comes on. Modern cars have sensors that monitor oil levels and quality, and when the oil gets too low or dirty, it triggers a warning light.

Dark or Dirty Oil

Fresh oil is amber in color and clear. Over time, it becomes darker and filled with debris as it circulates through your engine. If you check your dipstick and see that the oil is dark or gritty, it’s time for an oil change.

Loud Engine Noises or Knocking

Oil lubricates the moving parts of your engine. If the oil is old or too low, you might hear grinding, knocking, or louder-than-usual engine noise because parts aren’t getting enough lubrication.

Exhaust Smoke

If you notice smoke (not just vapor) coming from your exhaust, it could be a sign that your oil has become dirty or your engine has an oil leak.

Poor Fuel Economy

Old, dirty oil causes your engine to work harder, reducing efficiency and lowering gas mileage. If you’re noticing frequent trips to the gas pump, it might be time to change your oil.

Oil Smell Inside the Car

If you smell burning oil inside your car, it’s likely that there’s an oil leak. This could mean your oil is running low or your engine is overheating due to a lack of lubrication.

Excessive Mileage Between Oil Changes

Even if you don’t notice any of the above symptoms, it’s important to change your oil based on your vehicle’s recommended interval, usually every 5,000 to 7,500 miles for modern cars using synthetic oil. If it’s been a while since your last oil change, don’t wait for problems to arise!

Why Oils Break Down?

Oil breaks down over time and loses its effectiveness for several reasons. First, as your engine runs, oil is exposed to high temperatures and pressure, which causes it to break down chemically. Second, debris from the engine, such as dirt and metal particles, gets into the oil, creating a sludge-like mixture that reduces its ability to lubricate properly.

Other factors, such as extreme weather conditions, frequent short trips, or stop-and-go driving in traffic, can also contribute to oil breakdown. That’s why regular oil changes are crucial in maintaining your car’s performance and longevity.

How to Check Your Oil Yourself

Step 1: Park on Level Ground and Turn Off the Engine

First, make sure your car is parked on a flat surface and the engine is turned off. For the most accurate reading, it’s best to check the oil when the engine is cold or after it’s been off for a few minutes to let the oil settle back into the oil pan.

Step 2: Locate the Dipstick

Pop the hood and look for the dipstick. It usually has a bright-colored handle (yellow or orange) and is located near the engine. If you’re unsure, your owner’s manual can help you find it.

Step 3: Pull Out the Dipstick

Once you’ve located the dipstick, pull it out and wipe it clean with a rag or paper towel. This first step clears the old oil reading so you can get a fresh one.

Step 4: Reinsert and Pull Out the Dipstick Again

After wiping it clean, push the dipstick all the way back into its tube, wait a second, and then pull it out again. This will give you an accurate oil reading.

Step 5: Check the Oil Level

Look at the tip of the dipstick. You’ll see two marks or lines—these indicate the minimum and maximum oil levels. The oil level should be between these two marks. If it’s near or below the minimum, it’s time to add some oil.

Step 6: Check the Oil’s Color and Consistency

While you’re at it, check the oil’s color. It should be a light amber color. If it looks dark, gritty, or has any metal particles, it’s time for an oil change. Also, feel the oil between your fingers—if it feels excessively thick or dirty, that’s another sign it needs changing.

Step 7: Add Oil if Needed

If your oil level is low, carefully add the right type of oil for your car. Check your owner’s manual for the recommended type, and add a little at a time, checking the dipstick again after each addition to avoid overfilling.

Next: Pre-Purchase Inspection