Q: What factors affect fuel economy?

asked by on December 15, 2015

What factors affect fuel economy?

Your Accord came with a window sticker that explained the miles per gallon the car was rated for under different driving conditions, such as highway driving, city driving, and also provided a combined total. It’s important that you understand these are not definitive numbers – many factors affect fuel economy. These include:

  • Idling – The longer you idle, the more fuel you use without actually traveling any distance.

  • Hard Acceleration – Hard acceleration uses more fuel than normal acceleration.

  • Low Tire Pressure – Low pressure in your tires can reduce fuel economy (the engine has to work harder to turn the wheels).

  • Hard Braking – Sudden braking wastes fuel.

  • Cold Engine – Not letting your engine warm up to normal operating temperature before driving can reduce fuel economy.

  • Using the Air Conditioner – Using the air conditioner places an additional load on the engine, increasing fuel consumption.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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