AUTOS: 168 Miles per Gallon

Most drivers feel like cheering if they get as much as 20 miles on a gallon of gas. But not Research Engineers Dave L. Berry and Fred Schuette. Last week, in Shell Oil's tenth annual mileage test at Wood River, Ill., they drove the twelve test miles at the rate of 168.49 miles per gallon —and did it in a 28-year-old car.

The new record (old record: 149.95 miles per gallon) was set in a 1924 four-cylinder Chevrolet. But the car was completely rebuilt. The compression ratio was stepped up from the normal 6-1 to 10-1, the fan belt taken...

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