What is the longest distance on a single tank of fuel?
What is the longest distance on a single tank of fuel? New world record: 1,626 miles on one tank of gas.
What is the best speed to drive to save gas?
Slow Down and Drive Conservatively For light-duty vehicles, for example, every 5 mph you drive over 50 mph is like paying $0.30 more per gallon of gas (based on the price of gas at $4.32 per gallon). Reducing your speed by 5 to 10 mph can improve fuel economy by 7%–14%.
What car holds the record for most miles?
The highest mileage car on record is Irv Gordon's 1966 Volvo P1800S, with over 3 million miles. There were even two electric cars in the study.