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Old 07-03-2016, 10:19 PM   #7 (permalink)
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Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
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Originally Posted by gregsfc View Post
but really drops when I start facing cool mornings.
All vehicle's fuel efficiencies drop in cold weather. The air is denser, causing more drag. And, there is more waste of the heat energy of the fuel due to having to heat up the incoming air more and still spitting it out the tail pipe hot. And there is also a switch over to winter fuel at some point in the season which has a different blend that contains less energy per gallon than summer gas.
All of these modern fuel injected Hondas have an O2 sensor. They will adapt to form the correct mixture at any reasonable temp or altitude.
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