Gasolines are also treated with metal deactivators, which can be compounds that sequester (deactivate) metallic salts that or else speed up the formation of gummy residues. The metallic impurities could come up from the engine alone or as contaminants from the fuel. Detergents[edit] Butanol fuel – Fuel for internal combustion https://torreyp344zql6.wiki-cms.com/user