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Federal Fuel Economy Guide
The purpose of EPA’s fuel economy estimates is to provide a reliable basis for comparing vehicles.
- A “city” estimate that represents urban driving, in which a vehicle is started in the morning (after being parked all night) and driven in stop-and-go traffic
- A “highway” estimate that represents a mixture of rural and interstate highway driving in a warmed-up vehicle, typical of longer trips in free-flowing traffic
- A “combined” estimate that represents a combination of city driving (55%) and highway driving (45%)
Estimates for all vehicles are based on laboratory testing under standardized conditions to allow for fair comparisons.