National Geographic : 1928 Jul
Less than a teaspoonful to the gallon but what a difference ETHYL makes! ETHYL is the name of the "anti knock" compound developed by General Motors Research Laboratories to make motor gasoline more efficient. Leading oil companies mix it with their gasoline at their refineries to form Ethyl Gasoline- the standard AV high compression fuel. There is less than a teaspoonful of ETHYL fluid in a gallon of Ethyl i Gasoline -- but what a difference it Sg n makes ! IIn cars of ordinary compression, ETHYL eliminates that "knock" and L M.OINt/ power loss as carbon forms-and s I " W^^^.10f turns the higher compression cre Sated by the carbon deposits into extra power. As for the new high compression cars, ETHYL made them possible! Ethyl Gasoline is now available throughout the United States and Canada at pumps bearing the ETHYL emblem. Ride with ETHYL .. . today. ETHYL GASOLINE CORPORATION .. ' 25 Broadway, New York City J 56 Church St., Toronto, Ont., Can. .ETHYL Ethyl Gasoline is colored red for identi fication but not all red gasolines contain ETHYL,whose active ingredientis tetra- G A SOLINE ethyl lead. It takes more than dye to make an "anti-knock"(high compression) fuel. Knocks out that "knock"