Traces of vanadium in large-temperature combustion solutions variety droplets of molten vanadates. These assault the passivation layers on metals and lead to significant temperature corrosion, which happens to be a priority specifically for inner combustion engines. Molten sulfate and lead particulates also have this sort of result. 1600 – https://broadfar.com/oraco-global-trends-in-heat-not-burn-products/