Traces of vanadium in substantial-temperature combustion products sort droplets of molten vanadates. These attack the passivation layers on metals and lead to higher temperature corrosion, which happens to be a priority specifically for inner combustion engines. Molten sulfate and guide particulates even have these kinds of effect. 1600 – https://broadfar.com/heated-tobacco-shaping-a-safer-sustainable-smoking-future/