This is a very funny coincidence, since I was doing my own graph two days ago and searched this site if anyone would have published their data, but did not find anything. But a day later this topic appears...
I have been collecting my commuting data over a year and now I wanted to see if my new winter tyres will make any difference.
My trip to work is total 13,7km and I take 3 readings during each trip.
-First after 3,6km of town roads
-Second after a 6,5km highway period @ 80-100km/h
-The last after arriving to my work (3,6km @80 km/h road + town roads)
Also I make notes about the temp, wind, snow, traffic, speed, preheating etc.
I think I can make a thousand graphs with all these variables
This graph I made is from the highway part only.
I was very surprised to see how much the temperature affects to the MPG
Although there's yet only 2 datapoints, it was nice to see that my new winter tyres (Nokian hakkapeliitta 7) are on the better side than the old retreaded "wintercontact allweather" tyres.
I was afraid to inflate the old tyres over 2,5bar, I thought they would explode. There wasn't even any mention about the max pressure.
The Nokians have now 2,7 bar and the really roll much better.