Can Low Oil Cause My Car to Say Service Engine Soon?

You check your oil, and it’s low. Then you notice a “Service Engine Soon” light glaring at you from your dashboard. Coincidence? Probably not. While a “Service Engine Soon” light can mean a myriad of things, low oil is a common culprit.

Let’s dive into why low oil can trigger this warning light and what you can do about it.

How Low Oil Impacts Your Engine

Your engine is a complex piece of machinery with many moving parts. Engine oil is the lifeblood that keeps everything running smoothly. Here’s how low oil can wreak havoc:

• Increased Friction: Oil lubricates these moving parts, reducing friction and heat. Low oil means increased friction, leading to premature wear and tear.
• Overheating: Oil also helps regulate engine temperature. When oil levels are low, the engine can overheat, potentially causing severe damage.
• Oil Pressure Drop: Your car’s oil system relies on pressure to deliver oil effectively. Low oil means lower pressure, which can trigger your car’s oil pressure sensor and, you guessed it, the “Service Engine Soon” light.

Low Engine Oil Warning Light

Can Low Oil Cause Serious Damage?

In short, yes. Ignoring low oil can lead to catastrophic engine failure. Here are some potential consequences:

• Damaged Pistons and Cylinders: Increased friction from low oil can score your pistons and cylinders, reducing engine efficiency and potentially requiring expensive repairs.
• Worn Bearings: Bearings rely on a constant film of oil. Low oil can starve bearings of lubrication, causing them to wear down and eventually fail.
• Complete Engine Seizure: In extreme cases, low oil can cause the engine to seize completely, requiring a costly rebuild or replacement.

Engine Damage From Low Oil

What to Do If Your “Service Engine Soon” Light Comes On

First, don’t panic! It might not be catastrophic, but it’s crucial to take immediate action:

1. Check Your Oil Level: Find a safe spot to pull over and turn off your engine. Let the engine cool for a few minutes, then locate your car’s dipstick. Wipe it clean, reinsert it fully, and then remove it again to check the oil level.
2. Add Oil If Necessary: If the oil level is below the “add” mark, carefully add the recommended type and amount of oil for your car (refer to your owner’s manual).
3. Get to a Mechanic: Even if the “Service Engine Soon” light turns off after adding oil, it’s still wise to visit a qualified mechanic. They can diagnose the issue, check for underlying problems, and reset the warning light.

Preventing Low Oil Issues

Prevention is always better than cure. Follow these tips to keep your engine happily lubricated:

• Regular Oil Changes: Stick to your car manufacturer’s recommended oil change intervals.
• Check Your Oil Regularly: Make it a habit to check your oil level at least once a month.
• Address Leaks Promptly: If you notice oil spots under your car, get a mechanic to check for leaks as soon as possible.

Conclusion

While many factors can trigger a “Service Engine Soon” light, low oil is a frequent offender. Addressing low oil promptly can save you from expensive repairs and keep your engine running smoothly for miles to come. Regular maintenance and being attentive to your car’s needs are the best ways to ensure a long and healthy life for your vehicle.