Smoke when coming to a stop

ruben356 · 07-19-2021, 05:47 PM

Quote:

Originally Posted by satinof10m5

I'm using 5w-50 and my car is still doing it only on a long idle. Funny thing is it isn't that bad at all when my my throttle is in sport plus. I wonder why? Anyone have a reason for me

Same symptoms i had, when in sport plus it became excessive. Only thing for me was that when i made the switch to 5W50 it actually went away. Have you checked the pcv breathers?

M5_Raz · 07-19-2021, 05:58 PM

Wouldn't some burn be actually good? I'm thinking that as long as you keep it topped up you have "fresher" oil. Any thoughts?

ruben356 · 07-20-2021, 07:20 AM

Quote:

Originally Posted by M5_Raz

Wouldn't some burn be actually good? I'm thinking that as long as you keep it topped up you have "fresher" oil. Any thoughts?

I mean for me, and as some are reporting, its a bit too excessive especially under WOT. That can be very nerve rattling for most. I know i slightly crapped my pants first time I saw huge cloud of smoke behind me, first time i ever pushed it hard.

Neilb76 · 08-16-2021, 01:51 PM

Quote:

Originally Posted by kiesha2014

You tried to change breathers?

I now have catch cans and still does it, valves see fine

7sportplus · 08-20-2021, 06:41 PM

Quote:

Originally Posted by Blaxwil

I thought Seafoam wasn't good for our platform due to direct injection and the turbos. ??

No issues with mine, it actually helps

7sportplus · 08-20-2021, 06:49 PM

It's the DP's gentleman. If you are going to have DP's on your car then you can expect some smoke. That's Period. I put DP'S on my engine at 3500 miles, basically brand new and it smoked. Fresh oil really helps if you have DP's. That's the only thing that helps mine. I have around 10,000m on it now and no change. Sea Foam and fresh oil. Temporary fix but it works. The other alternative is to put factory converters back on.

7sportplus · 08-20-2021, 07:18 PM

Quote:

Originally Posted by M5_Raz

Wouldn't some burn be actually good? I'm thinking that as long as you keep it topped up you have "fresher" oil. Any thoughts?

I agree but it's the smoke itself coming from a BMW is what bothers me

ruben356 · 08-23-2021, 01:18 PM

Quote:

Originally Posted by 7sportplus

It's the DP's gentleman. If you are going to have DP's on your car then you can expect some smoke. That's Period. I put DP'S on my engine at 3500 miles, basically brand new and it smoked. Fresh oil really helps if you have DP's. That's the only thing that helps mine. I have around 10,000m on it now and no change. Sea Foam and fresh oil. Temporary fix but it works. The other alternative is to put factory converters back on.

I do agree somewhat with this. Mostly any turbo that is catless smokes some. Only difference is when i first got my car it was smoking a lot, which was concerning, and as i mentioned prior. Almost 99% went away after i switched oil weight. Call it lucky i guess, as some have not had the same luck.

07-19-2021, 05:58 PM	#68
M5_Raz Lieutenant 514 Rep 538 Posts Drives: BMW M5 Join Date: Aug 2020 Location: Bay Area, California iTrader: (0)	Wouldn't some burn be actually good? I'm thinking that as long as you keep it topped up you have "fresher" oil. Any thoughts?
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08-20-2021, 06:49 PM	#72
7sportplus New Member 6 Rep 27 Posts Drives: 2011 7 series 750 LI Join Date: Sep 2018 Location: Alabama iTrader: (0)	It's the DP's gentleman. If you are going to have DP's on your car then you can expect some smoke. That's Period. I put DP'S on my engine at 3500 miles, basically brand new and it smoked. Fresh oil really helps if you have DP's. That's the only thing that helps mine. I have around 10,000m on it now and no change. Sea Foam and fresh oil. Temporary fix but it works. The other alternative is to put factory converters back on.
	Appreciate 0 Quote