How Much Difference in Fuel Consumption Between Highway and City Driving?

[OGavin]

Highway and city driving differ by about 30% in fuel consumption. On the highway, most of the time is spent driving at a constant speed with minimal braking, and there's no need for frequent gear shifts or acceleration. At a constant speed, the engine load is small, and the car's inertia allows it to maintain speed with minimal traction force, making it relatively fuel-efficient. Here are some methods to improve fuel efficiency: 1. Maintain a steady speed: Control your speed while driving and avoid sudden braking. 2. Avoid opening windows at high speeds: Opening windows at higher speeds increases fuel consumption. 3. Regularly check tire pressure: Ensure your tires are properly inflated, as both underinflation and overinflation can increase fuel consumption. 4. Maintain your transmission: Always use the correct transmission fluid for your vehicle, as it not only lubricates but also helps transmit torque, so it should be replaced periodically.