NEILB1

iTrader: (9)

Went outside today and left the car running for about 20 mins as it has not been used fro a week,

Set of up the road and it was just smoke behind me for a about 10 seconds and then cleared

Why ?

Glowplug

iTrader: (8)

What colour was the smoke?
White=water
Blue=oil
Black=fuel

NEILB1

iTrader: (9)

if it was any of them i would be worryed, never happens only this morning on idle for 20 mins, o and white

Myles

iTrader: (40)

Possibly a bit of condensation, mine does it until it's warm when it's cold outside.

NEILB1

iTrader: (9)

hope it is what you said Myles. It was 8.30 and cold as well,

subarutim

iTrader: (1)

that will be condensation mate,i always panic when its cold outside and i get this. if it hangs in the air its smoke not condensation so get it checked

ALi-B

iTrader: (1)

White/bluish white is also unburnt fuel.

Usually happens on cold start leaving it tick over then giving it a quick booting. When the engine is cold and left to idle, unburnt fuel builds up in the exhaust.

My BMW does it every morning in without fail when I give it some beans out of the junction, as did my old scoob. Definitely fuel as exhaust fume stunk of petrol.

NEILB1

iTrader: (9)

THIS WAS smoke that hung about when i looked in my mirror, Not condensation vapour Even pulled over to check the engine, then it was gone when i set back of

Glowplug

iTrader: (8)

At that time of day i to would go for condensation. Have you got a stainless zorst fitted? Always seems worse on ss systems.

NEILB1

iTrader: (9)

yes full stainless and prodrive sports cat.

Glowplug

iTrader: (8)

Yeah, as long as it only happens on cold cold starts and it white then i wouldn't worry

prodriverules

iTrader: (52)

cold morning starts always white smoke,but when left to idle the low flow of gas on idle causes condensation to build in the cold exhaust as it doesn't warm as fast on idle and then when you pull of and the gas flow increases it quickly turns the condensate into heavy/large amounts of vapour due to the exhaust increasing in temp rapidly.

NEILB1

iTrader: (9)

will see how it goes over the next few days when i use it " if i use it"