Blowing smoke out my ass

[paranoidTSi]

My DSM has recently had this wonderful white smoke coming out the exhaust, and it is quite heavy at times.

I've used Seaform about two weeks ago through vacuum line, it worked and I changed the oil everything was fine. Recently, I added Seaform to the gas tank on my last fill up, it ran out today and I filled it up with Chevron gas, now it seems when I idle the car there is smoke coming out the back, but if I drive it hard or drive it for about 5 minutes the smoke disappears.

Any suggestions? Is it possible Seaform in the gas tank is doing this?

 

[FourG63GST]

could be coolant. do your coolant or oil levels drop at all ?

 

[blcknspo0ln]

could be any number of problems..

take an hour and clean up your engine bay real nice. then check for any coolant leaks anywhere..

could be a head gasket on the way out or water pump