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Understanding what affects fuel efficiency

Understanding what affects fuel efficiency

Understanding what affects fuel efficiency

Most people think that it’s the type of vehicle you drive, but the person behind the wheel also has a strong impact on fuel consumption.

In fact, the choices you make as a driver influence both fuel consumption and greenhouse gas (GHG) emissions.

The 5 factors that have the most impact on fuel consumption are:


Avoid: rapid acceleration, high speed, inconsistent speeds, and extended idling.

In fact, the smoother you drive, the more impact you have on your fuel consumption.  It can account for a difference of up to 25%. It’s quite something!


The colder it is or the greater the temperature difference, the worst your fuel consumption will be. A drop in temperature from 24 to 7 degrees can increase fuel consumption in urban commutes by between 12 and 28%

In the summer, air conditioning and open windows (which decrease the aerodynamics of your vehicle at highway speeds) contribute to increased consumption.


Since a lighter vehicle will use less fuel, every 25 kg added to it (for a medium-sized vehicle) will increase fuel consumption by 1%.


New vehicles are designed to slip easily through the air so bike or ski racks or cargo boxes can increase your fuel consumption by 20%.  Don’t keep them on the vehicle unless you’re actually using them.


Before leaving, locate the shortest and clearest route. This will help you save time and fuel.

Want a summary of the points mentioned above? Watch this video and feel free to share it so that as many people as possible know what aspects influence fuel consumption.

Jackie Beaudoin, Leclerc Insurance and Financial Services
Source :  Gouvernment of Canada