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I have a 2016 model, but I doubt this has changed in any meaningful way.
The "From Start" indicator confused the heck out of me as well; I didn't understand the difference between "From Start" and "From Reset", but the dealer explained it. "From Start" means from the start of the current trip, including stopping and then restarting the engine again within four hours (if more than four hours passes since the engine was shut off, the "From Start" data records are reset to zero). The "From Start" data is automatically calculated by the car's computer and the driver cannot control it. However, "From Reset" literally means from the last time the driver manually reset the trip meter; the driver controls this calculation.
As an example of "From Start" data, let's say that you start your car and drive to a gas station, shut off the engine and fill your tank, and then start the car again and drive to work. All data regarding average MPG, average MPH, distance traveled, etc., will be calculated based on the time when the engine was running during the aforementioned itinerary. However, if you then park your car at work and don't restart it again until eight hours later when your work day is over, all of the "From Start" data records from earlier that day will be wiped out and reset to zero for your drive home because the engine was off for more than four hours.
The bar is simply a graphical representation of fuel economy from 0 MPG to 60 MPG. The yellow, down-pointing arrow indicates your average fuel consumption on the bar scale (in this screen shot, it looks to be about 23 MPG).
Last edited by Mr. Toad; Oct 31, 2017 at 08:27 AM.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
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How do I read the consumption display?
