Interesting comparison.

I came back from Jindy on the weekend. Leaving Friday morning ~2am and returning Sunday afternoon. The 1045km trip averaged 9.2L/100km. This is on a 09 CRV 6 speed manual. 2 passengers + gear for the trip up and back, but 4 passengers + gear at Jindy. Probably did not use the air conditioning at all should shouldn't have affected fuel consumption.

This is really interesting as in my experience I've always managed more mileage with RON 95. Each week I average 9.8L/100km getting a total (max) ~550km/tank, yet here we've managed the same fuel consumption to the snow. Quite possibly the auto is just as efficient as the manual on highway speeds, and the octane rating has less of an impact?