Fuel efficiency measures how effectively a vehicle converts fuel into distance traveled.
Units
- MPG (US/UK): Miles per gallon β higher is better
- L/100km (metric): Liters per 100 kilometers β lower is better
- km/L (Japan, India): Kilometers per liter β higher is better
Conversion
MPG to L/100km: Divide 235.215 by MPG. Example: 30 MPG = 7.84 L/100km.
Factors Affecting Efficiency
Speed (optimal 45β65 mph), tire pressure, weight, aerodynamics, driving habits, maintenance, weather.