Q: There is smoke coming from my car.

asked by on

i do top up engine oil once every month and smoky
My car has an automatic transmission.

If you are having to top off the oil once a month, depending on how many miles you drive per month, this may suggest that your engine is burning the oil. If the smoke is a blue colored smoke, this is an indication that the oil is being burnt with the fuel. When this happens, it is usually due to worn piston rings allowing the oil to pass by the pistons up into the combustion chamber.

This can also happen when the valve guide seals are bad, resulting in oil from the valve train leaking down into the combustion chamber as well. I would recommend having an expert from YourMechanic come to your location to inspect for the source of the smoke and suggest any needed repairs.

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. There is smoke coming from my car.

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: How much to replace oil gaskets on a 1998 Dodge Dakota V8 Magnum 4WD

Hello - oil leaks can be simple - valve cover gasket drooling all over the plugs/coils/wires, etc. or sneaky. A leaky front crankshaft seal will slobber oil all over the bottom of the truck. A leaking rear main crankshaft seal,...

Q: Car ticking and smoking.

The 4.0 L engine in these years were known to have a lot of issues with the timing chain guides coming apart and causing lout ticking noises from the timing chains. You would have to have major engine timing chain...

Q: Car violently shakes at 30+ mph after cold start

Hi Chris. Thanks for writing in tonight. The biggest problem with bad motor mounts is that when they fail, they tend to fail rapidly; so that might be what has happened to your Mitsubishi. However, it's also possible (although less...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.