Does Sta-bil cause extra smoke?

richardbrown67@yahoo.com

Seaman Apprentice
Joined
Oct 31, 2010
Messages
37
Added Sta-bil marine formula to gas tank couple of weeks ago, without running the motor. Next time running the motor, it smoked a lot more than usual. Blue/white smoke. I ran the motor for quite a while. Ran fine, but continued to smoke more than usual. Does the Sta-bil cause that?
 

watergecko

Petty Officer 2nd Class
Joined
Dec 1, 2010
Messages
111
Re: Does Sta-bil cause extra smoke?

Short answer-no.

Bluish smoke is usual sign of excessive oil burn either due to incorrect mix, or ring problem, or non concentric bores. Im sure there are others on here who could give you better answer though.

Are you running a 2 stroke? Or 4? If 4, then valves are suspect.

Also if its 2 stroke- are you using premix or vro sytem?

Are you using seafoam? That will smoke more also.

What speed is it smoking? Idle? Trolling? Wot?
 

jrs_diesel

Chief Petty Officer
Joined
Mar 3, 2010
Messages
552
Re: Does Sta-bil cause extra smoke?

I have never seen Stabil cause smoke in any of the engines that I use it in, including my four strokes.
 
D

DJ

Guest
Re: Does Sta-bil cause extra smoke?

I have never seen Stabil cause smoke in any of the engines that I use it in, including my four strokes.

Ditto. THe smoke may be just a factor of colder temp's.
 

jeremy_nash

Seaman Apprentice
Joined
Nov 14, 2010
Messages
37
Re: Does Sta-bil cause extra smoke?

we use stabil in the gas for the drills at work, and it makes the gas smell like burning pickle juice, but that is in small 2 cycle motors, not large 2 cycle motors
 

richardbrown67@yahoo.com

Seaman Apprentice
Joined
Oct 31, 2010
Messages
37
Re: Does Sta-bil cause extra smoke?

"burning pickle juice" - an interesting description.

On the day I noticed more smoke, it was pretty cold - probably 45 degrees. Does running in colder weather cause more smoke, especially at start-up?

Richard
 

watergecko

Petty Officer 2nd Class
Joined
Dec 1, 2010
Messages
111
Re: Does Sta-bil cause extra smoke?

Theoretically yes if the motor is cold its clearances are slightly looser. Were talking thousandths of an inch but... As motor warms the metal expands tightening it up. Its while its cold with larger clearances that more oil flows around rings causing smoke. Juat think of how a motor overheats and seizes up. Metal expands until it seizes, reverse is also true in cold
 

Mas

Lieutenant Commander
Joined
Oct 3, 2006
Messages
1,656
Re: Does Sta-bil cause extra smoke?

"burning pickle juice" - an interesting description.

On the day I noticed more smoke, it was pretty cold - probably 45 degrees. Does running in colder weather cause more smoke, especially at start-up?

Richard

One of the byproducts of combustion is water vapor...which can quickly condense in cooler weather...looking like smoke.

Mas
 
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