National Geographic : 1988 Jul
CLIMATES AS WELL AS ENGINES. fuel injector openings as small as 2/1000 of an inch, in precisely the way the microprocessors that run the fuel injector system intended. This advanced formula also keeps intake valves clean and free of the harmful deposits which can cause frequent hesitation and stalling. All of which is according to our specs. Because we see fuel as an extension of the engine: As precision equipment that must interact with other precision equipment. And we believe that engines designed to aerospace tolerances should have a fuel that's equally exacting. Exxon Gasolines. Precision equipment for precision engines, whenever you drive, wherever you drive. Just turn the key. E 9XON GASOLINES. Precision equipment for precision engines:" ©1988Exxon Corporation.