- Here's Mr. Jones car in the suburb of Evanston, city of Chicago, state of Michillois. Michillois, part Michigan part Illinois. One of 26 states in the United States of Texaco. You see in blending Sky Chief Gasoline, Texaco divides the country according to altitude and climate differences that affect gasoline mileage. So for top mileage, we give Mr. Jones and Michillois a different blend from Mr. Smith in mountainous Wyokota, or Mr. Brown in desert Arimextex. More work? Uh-huh. But it's one reason why Texaco sells more gasoline than anyone else. Why you can trust your car to the man who wears the Texaco star. (bright music) We're first, and we think that's a big responsibility.