Q: Every 500 miles, 'check engine' light comes on and oil has to be added

asked by on

My car was pre-owned. Around every 500 miles, the 'check engine' light comes on and I have to add oil at that time. The dealership can't find anything wrong, but I have to keep adding oil! What is your opinion about this kind of oil consumption?

A: Hello. It is common for this engine to <a h...

Hello. It is common for this engine to consume oil as it ages. Typically the oil consumption comes from the valve stem seals. The only way to repair it is with rebuilding the cylinder head. I usually will look into the PCV system first to make sure it is functioning right. If it is not, then it will consume oil. Most of the time though it requires that the head be rebuilt. If you need to have it further inspected for this, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your oil consumption issue and let you know what can be done.

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car computer randomly beeps - 1998 BMW 323is

There are a number of driver-set functions which may cause the "3-beep" symptom: "top of the hour" clock warning (so you can catch the news), speed warning, icing conditions warning, etc. These are all set on the On-Board Computer. Check...

Q: Check Engine not working

Hello. There is a chance that the bulb for the Check Engine Light has burned out. When you turn the key to the run position, a mechanic would conduct a bulb test to see if this will illuminate the Check...

Q: Car doesn't recognize the key when it's inserted

There are several common possible issues. Low battery voltage can cause this type of situation to occur. Another possibility is a problem in the drive authorization system. The key itself is also something to consider. The drive authorization system needs...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...