white smoke on start up.

[The Hypno-Toad]

Noticing a degree of what appears to be white smoke on start up from cold. Read various diagnosis of what could be wrong some of which have put the fear of god up me with regard to cost!! Here are the clues for all you MX-5 Sherlocks..

1.) Occurs when the car has been sitting overnight. Stops after about 10 minutes of running.
2.) All the fluids, water and oil, still full.
3.) No loss of power or rough running.
4.) Smoke does not smell greatly of oil but has a slight petrol smell.
5.) All temperatures on the gauges spot on.
6.) Passed MOT in July with no emissons issues.

Any thoughts?

[MG CHRIS]

Mine is exactly the same only for a few minutes in the mornings just continue driving it if there is no signs of losing water, oil etc. White smoke is usualy just condensation from standing over night a common problem aparently on mx5.

[mike9009]

MG CHRIS said:

Mine is exactly the same only for a few minutes in the mornings just continue driving it if there is no signs of losing water, oil etc. White smoke is usualy just condensation from standing over night a common problem aparently on mx5.

Agree with this .... probably just condensation..... mine used to do the same...

[gd49]

My Mk2.5 has done this in cold weather for the past 3 years. Never progressed to anything and has had all its services without anything been found so think its a normal feature!

[NeoVR]

Itll just be condensation.. white smoke is only really an issue if your loosing coolant.

[MGgeordie]

Mine does this & has done it for the 8 years that I have had it. I have never had any problems at all. Hope that puts youre mind at rest...

[The Hypno-Toad]

MGgeordie said:

Mine does this & has done it for the 8 years that I have had it. I have never had any problems at all. Hope that puts youre mind at rest...

Thanks everyone.

[Digby]

I even mentioned it in my video about my ramps as it looks to the untrained eye like your car is about to explode

http://www.youtube.com/watch?v=CsJaA8uA7nM

[Microlin100]

My mazda 1.8 eunos would start white smoking after about 30 second from start up . For about 4 mins . It was quite alot of smoke . Lots of white smoke . We did a pressure test they were all even . It lost no water used none . WE WAITED TO IT SMOKES TURNED OFF THEN TOOK OUT THE SPARK PLUG S. WE FOUND OUT IT WAS A INJECTOR WAS DUMPING FUEL ON ONE PISTON . NO SMOKE SINCE . GREAT