> But where I live, winters could be a big issue. These vehicles could coat the roads with thin black ice. I never even considered this as a problem. Is the ex

> But where I live, winters could be a big issue. These vehicles could coat the roads with thin black ice. I never even considered this as a problem. Is the exhaust liquid water though? Because my understanding of the process is such that is still creates an appreciable amount of heat, causing the exhaust to leave as a vapour (much in the same way water vapour is already expelled from catalyzed ICE exhaust, or people breathing).