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Log fill-ups to track MPG, cost per mile, and fuel expense trends over time.
A gas mileage log tracks fuel fill-ups with odometer readings to calculate miles per gallon (MPG), helping you monitor fuel efficiency, detect maintenance issues, and budget fuel costs.
| Type | MPG | Examples |
|---|---|---|
| Compact Car | 30–40 | Honda Civic, Toyota Corolla |
| Midsize Sedan | 25–35 | Honda Accord, Toyota Camry |
| SUV | 20–28 | Toyota RAV4, Honda CR-V |
| Truck | 15–25 | Ford F-150, Ram 1500 |
| Hybrid | 45–60 | Toyota Prius, Honda Insight |
| EV (MPGe) | 100–130 | Tesla Model 3, Chevy Bolt |
Formula
MPG = (Current Odometer − Previous Odometer) ÷ Gallons FilledCurrent Odometer = Odometer reading at the current fill-up
Previous Odometer = Odometer reading at the last fill-up
Gallons Filled = Amount of fuel added at the current fill-up
Worked Example
Drove from 45,000 to 45,350 miles, filled 10.5 gallons
Did you know? According to the EPA, the average fuel economy of new vehicles sold in the US reached 25.4 MPG in 2022. The Department of Energy estimates that aggressive driving (speeding, rapid acceleration) can lower gas mileage by 15-33% on the highway.
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