so i drove behid my car and noticed that when its cold blue smoke comes out but when its warm theres no smoke,everyonce in a while when i get on boost a cloud of white smoke comes out and the car get cold real quick like ill go to the store for 15 min. and when i turn on the car its cold.why??

 

Maybe you're going to the wrong store?

But seriously, the blue smoke minimizes as the engine reaches operating temperature because the metal expands when heated. You have early signs of bad rings or piston bore wear.

White smoke at boost? Just guessing, but maybe you have head gasket blow-by and the coolant is getting burned. Probably injecting gasses into the water jacket too, which could effect the temperature guages ability to read the water temp.