Understanding Fuel Economy
Fuel economy measures how efficiently a vehicle uses fuel. Different regions use different metrics: MPG (miles per gallon) is common in the US and UK, while L/100km (liters per 100 kilometers) is used in Europe and most other countries.
Fuel Economy Units
| Unit | Region | Notes |
|---|---|---|
| MPG (US) | United States | Uses US gallons (3.785 L) |
| MPG (UK) | United Kingdom | Uses Imperial gallons (4.546 L) |
| L/100km | Europe, Australia | Lower is better |
| km/L | Japan, India | Higher is better |
Tips to Improve Fuel Economy
- Maintain steady speed - Use cruise control on highways
- Check tire pressure - Under-inflated tires reduce efficiency
- Remove excess weight - Extra weight requires more fuel
- Regular maintenance - Clean air filters and proper tune-ups help
- Avoid aggressive driving - Rapid acceleration wastes fuel
FAQ
What's a good fuel economy?
For petrol cars, under 8 L/100km (over 30 MPG) is considered good. Hybrids can achieve under 5 L/100km (over 50 MPG).
Why does city driving use more fuel?
Stop-and-go traffic, frequent acceleration, and idling all consume more fuel than steady highway driving.