Gasolines can also be treated with metal deactivators, that are compounds that sequester (deactivate) metal salts that usually accelerate the development of gummy residues. The steel impurities may well crop up in the motor alone or as contaminants inside the fuel. Detergents[edit] This is commonly generally known as engine knocking https://bookmarkvids.com/story17976272/not-known-factual-statements-about-gasoline-price-sydney