Milage varies greatlty with speed: 15 MPG when you push it to 20 MPG in town when you go easy. Remember, these cars are set up to burn rich. The Honda system of providing a sort of pre-combustion chamber where the fuel is rich and ignites readily and then ignites the rest of the mixture in the combustion chamber, had not been invented yet. If you want good gas milage you must install a modern engine with electronic fuel injection: It will give you 24 to 28 MPG.
'69 280SL,Signal Red,113044-12-007537,tired engineer, West-Seattle,WA