Fuel efficiency

Hi. I'm using Micra K11 + E10 (95). Now I see fuel usage and usually light warning show up about 310 miles. This mean I'm using about 40L of petrol for driving 310 miles. It's not too high? 40L = 8.8 gslons / 310 miles = 35.22mpg average petrol consumption. What I should check to fix this consumption?

Sent from my SM-F907B using Micra Sports Club mobile app
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