@a_wick_2010 ok a few minutes of whitish vapor is normal on a cold day 1st start if it cold/cool outside say 10C/50F particularly in humdi wet climates, Pacific Northwest for example.

Lose of coolant is a pain to track down, but how much are losing and over how long ?

 

sorry for late reply, the car has been in parking space for sometime as I am afraid to drive it

This is the video of the car


when the engine is cold (e.g. after park for the whole night), in the morning when I start the car, it will blow the white smoke like this video
the coolant is somehow suck into the exhaust for a reason

strangely, after that no overheating whatsoever, reaching the normal heat temp of the engine and I can drive anywhere only after cold I top up again the coolant, it does not make the coolant tank empty but yes it's drop from max line to few mm under minimum line.

also this is happening in the morning after engine completely cold

 

That looks normal to me that is gray smoke not white. A head gasket leak eats coolant,it will empty your coolant tank. You have a small leak somewhere, when you drive the coolant heats up and get's pressurized and all the connections get hot. Coolant will find a way past a connection that gets loose when the engine is hot or right after shutdown, once the pressue drops enough the leak stops.
The problem is it is such a small amount it is hard to find, I use coolant dyes in these cases they glow bright green under UV light.

 

I agree it looks normal, not a significant plume coming out, if you have some coolant vapor in the exhaust in cool or cold weather you won't need to ask us about it-you will know!

Other than that what RG said.

 

Get a hydrocarbon test kit. One of these will at least tell you if you have a small head gasket leak. In my case, the truck was still running fine but was losing some coolant like you are experiencing. The hydrocarbon test demonstrated that there were hydrocarbons in the coolant, indicating a head gasket leak. On tear down, I found the leak.

If the leak is external, the hydrocarbon test should ne negative. And if nothing is dripping on the ground, the external leak is quite small.

 

OP here, with a 200,000 mile check-in.