I recently purchased a 2015 Vauxhall Astra 1.6 Exite, I would like to know how I can find out the average fuel consuption of my car. I have checked the menu on the vehicle and all that it shows is the trip, total miles driven on the car, tire load, tire learn and oil percentage. I have tried everything that I can think off and I have searched through the owner manual of the car but I have been unable to find a way to show me the average fuel consumption. 

 

Any help would be greatly appreciated.

Hi....welcome to the Forum

The best way to accurately calculate the fuel consumption of your car is to fill the tank to the brim and reset the odometer.
Drive for a distance of mixed motoring and then top back up.

This will then give you the fuel used and the distance covered....make the calculation and you have a truly accurate reading.
Any of the onboard mpg readouts will always only use an average and then after a distance, it will float around the average which is then less inaccurate until you reset it.