Its been around 0-10 degrees F lately and I noticed my truck bellowing white smoke untill warm. It never did it before when it was in the 30's. I noticed my exhause doesn't steam like a gas engine but I'm wondering if this cold weather is cold enough to make it steam or is it smoke. When driving at first I can see it pouring out smoke like a cummins but its white. New injectors 5k ago but one side seems a lot noiser then the other side. Will my efi live tunes void my warranty on the injectors. I'm guessing the smoke would be normal seeing the motor is so cold but would like some reassurance! smells a little funky too I think.