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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.

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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.


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