kevins_garage

Sometimes I have to move my car around from the drive to the street to do stuff or get to other cars, trailers, etc...

If I start the car and move it to the street, then come back in a few minutes and start it again to put it back in the drive, I sometimes/usually get a puff of bluish-white smoke from the exhaust as if the car is burning oil. It doesn't seem to matter if the car is hot or cold, the trigger seems to be several starts and stops of the engine in a short period of time without much actual driving.

I am original owner and this car has basically done this from day one. I've asked a few dealer folks, but never really got a straight or consistent answer from any of them. I'm curious if anyone else has experienced this and if it is indicative of a problem or just the car burning off stored vapors or something that it would normally burn off while driving...

Glyn M Ruck

The V6 engines sometimes do that & it's absolutely nothing to worry about as long as oil consumption is OK.

How much oil does the car use?

mb91w126

puff of smoke on engine start is classically a symptom of leaky valve seals.

Glyn M Ruck

My C240 did that brand new! Never used a drop of oil.

kevins_garage

Doesn't use much oil. I check at least once or twice between oil changes, but have never needed to add any. I generally fill to just about the max mark on the dipstick and it has always been above the min mark by the next oil change - usually half way between max and min marks.