Q: The car is leaking oil but no check engine light or overheating. But the oil burning off exhaust? What could be wrong?

asked by on

The car cranks right up and drives smoothly. The oil burns off the exhaust and the cause of that it's smokes but not heavy white smoke. What could be causing the oil to leak on the exhaust?

My car has 271000 miles.
My car has an automatic transmission.

Hi there. The most common cause of this type of oil leak is a valve cover gasket that has worn out. With nearly 20 years of operation on your Nissan Maxima, it’s quite possible that the valve cover gasket has pushed out and is leaking slowly on the exhaust manifold. This is a rather easy repair to complete on your car, but it might be best to have one of our professional mechanics come to your location and complete an oil leaking inspection. This will verify where the leak is coming from so that the right repairs can be completed the first time.

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. The car is leaking oil but no check engine light or overheating. But the oil burning off exhaust? What could be wrong?

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: Starter stays engaged in park and neutral only

Your Ranger has two possible starter set ups. One has the starter solenoid directly mounted to the starter. The other is a remotely mounted solenoid on the right inner fender well. If your Ranger has the second set up, try...

Q: Big oil leak coming from gearbox now car dosent move

The most likely cause is that oil leaked out of the gearbox, or as I would call it "manual transmission" or "transaxle" for front wheel drive vehicles, which caused the bearings in the transmission to seize due to lack of...

Q: The service engine light comes on in the dash but doesn't stay on when I start the engine is that normal

What you describe is the normal sequence. The brief illumination of the SES light (aka, "check engine light") is intentional so that you can determine if the SES warning light actually functions. In other words, the light comes on as...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.