Q: Car uses quart of oil every 2 days

asked by on

Soon after purchasing a pre-owned car, it started using oil and recently it’s using a quart of oil every 2 days. It hardly has any power now. I checked the compression in all 4 cylinders and 3 of the cylinders were somewhere around 185-190. The last one was only around 140. What is the problem and can you tell me how to fix it?

Hello. If you are losing oil that fast it is because you have worn out piston rings or valve stem seals. Adding a little oil to the cylinder during the compression test will help you narrow this down. If the compression changed a lot then it is the rings. If not then it is the valve stem seals. Most of the time it is the valve stem seals on this engine.

Either way the engine will need to be taken apart to repair this. I’d suggest to get some help from a qualified mechanic to diagnose your oil consumption. Once the issue has been pinpointed, an accurate repair can be made to address it.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car uses quart of oil every 2 days

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: trans hot idle engine comes on when i start the truck

Hi there. Understanding what causes the transmission hot idle warning light is critical to diagnosing your problem. The Transmission Hot – Idle Engine message can be displayed when the transmission fluid is too hot, which prevents the transmission from cooling...

Q: Q: Engine shaking

Hello, thank you for writing in. One question that needs answering is what are the plugs wet with? While it is most commonly oil, coolant and fuel an also foul the spark plugs. If fuel is the issue, you need...

Q: No power lugged down and burning way to much fuel along with back fire in air breather

Hello. From what you describe it would appear that your vehicle is running rich, which can be caused by a wide variety of issues. A few common causes are a faulty fuel pressure regulator, leaky fuel injectors, a bad fuel...

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...