White smoke on start up

NAVIN

MEMBER
MAZDA 626

1999 Mazda 626 LX ( 4cyl). Mileage: 87000 miles
Problem: When I start my car there is a lot of white smoke that comes out of the exhaust. The smoke disappears after some time(a few seconds or so) and it does not seem to cause any problem while driving.
This also only happens after the car has been left in the cold overnight during winter. This did not happen during summer.
Is anything wrong? Please advise.
Thanks,
Navin

5 Replies

BLACKOP555

MECHANIC
10,371 POSTS

You probably have some water in the gas, cuasing it to only show on a cold day as it is quite significantly hotter then the cold air! Have you noticed that you are low on antifreeze ever?

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Thursday, November 29th, 2007 AT 4:03 PM

NAVIN

MEMBER
3 POSTS

Thanks for the information and yes, I was running low on antifreeze. I shall top that up today and let you know the results.
Thank you.

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Friday, November 30th, 2007 AT 1:51 PM

BLACKOP555

MECHANIC
10,371 POSTS

Let me know how fast you are noticing that you are running low on antifreeze?

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Friday, November 30th, 2007 AT 2:50 PM

NAVIN

MEMBER
3 POSTS

I observed the antifreeze for a few days and this is what I noticed:
The coolant level is not getting low very fast - It almost looks to be holding at the same level for the past few days.
Please let me know if there is anything else that comes to your mind.
Thanks for all your help !

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Tuesday, December 4th, 2007 AT 12:55 PM

BLACKOP555

MECHANIC
10,371 POSTS

Ok, I belive that you make have a little bit of water in your gas, nothing major almost all cars have it. And since the water vapor is so hot form the engine and comes out to the ocld air it condensates from the cold and thus you can see the vapor.