Gents, several days ago Mark replied to my assertion of illogic with "Maybe I'm missing something.... I agree with you that the display probably is intended to read MPG US, but I don't understand the logic above. To my mind, you have things reversed.
For any given fuel consumption, miles per US gallon is going to be a LOWER number than miles per Imperial gallon. A US gallon has LESS fuel than an Imp gallon so the bike will go a SHORTER distance, not a longer one. If the display is intended to be miles per Imperial gallon then it would read lower, not higher, for miles per US gallon. You are multiplying by 1.2 above when you should be dividing.
Put another way, if your bike reads 53 mpg and actually gets 42 US, then this supports (rather than refutes) the idea that the display is reading Imperial. But your data doesn't match with mine or what most of us are seeing where the computer MPG is much closer to miles per US gal rather than miles per Imp gallon."
And he's absolutely right ... don't know what happened in my head! The Avg mpg display is still reading ~53mpg after another 200 miles, and calc at fill-up is ~45mpg US... 53/1.2 = 44.2 so we're right in the neighborhood. WHY is this bike delivered in the US with readings in miles per Imperial gallon?
For any given fuel consumption, miles per US gallon is going to be a LOWER number than miles per Imperial gallon. A US gallon has LESS fuel than an Imp gallon so the bike will go a SHORTER distance, not a longer one. If the display is intended to be miles per Imperial gallon then it would read lower, not higher, for miles per US gallon. You are multiplying by 1.2 above when you should be dividing.
Put another way, if your bike reads 53 mpg and actually gets 42 US, then this supports (rather than refutes) the idea that the display is reading Imperial. But your data doesn't match with mine or what most of us are seeing where the computer MPG is much closer to miles per US gal rather than miles per Imp gallon."
And he's absolutely right ... don't know what happened in my head! The Avg mpg display is still reading ~53mpg after another 200 miles, and calc at fill-up is ~45mpg US... 53/1.2 = 44.2 so we're right in the neighborhood. WHY is this bike delivered in the US with readings in miles per Imperial gallon?