Yea, they do much better when the weather heats up.

 

Yea, I noticed the same. My mileage went from 50mpg last summer to 43mpg last winter. It's back up to 50mpg now. Not sure why temperature would make it drop like that. If anything, it should go up in the winter since cooler air is more dense than warmer air and the more dense the air, the more horsepower you get. Soooo.... I can only attribute the drop in mileage to the gasoline blends used in the winter months (if any).

 

Gas Milage

I've never dropped below the 50mpg default until 300 miles
ago. Milage dropped below he 50 mark on the last 2 tanks of gas.
I'm not used to seeing how the milage moves up and down on the display.
Milage dropped as low as 47.5 but stayed just under 50.

Today I got new gas and the averge displayed on the dash
defauted quickly to 50+ without resetting the trip meter.

Maybe there is something to gas being the possible cause for the deminished MPG.

 

I get the same results. When it's 70 degrees out I get around 47-48 mpg. But when it's 95 degrees I've gotten as high as 52 mpg. These bikes love the heat!

 

Gars

I'm not sure if all states do this, but in Maine we have state mandated "winter" and "summer" gas blends. They have different amounts of ethanol in them (and maybe other differences). No matter what vehicle you are running, your mileage will drop by as much as 10% with winter gas blends.

The difference you are seeing may be due to the fuel, and not the temperature. The time of year they change between blends correspond with the changing seasons. ICE's generally run more efficiently with colder, denser air anyway. Leave it to the state to figure out a way to legislate away that extra bit of efficiency!

 

Yea we have the blends here too. Half the year its gas and the other half of the year is gas/ethanol blend. I think the ethanol is used in the winter half (which we call non-summer) and would probably partly explain the drop in mileage.

 

I have noticed that 'city' driving (lights, stop signs, stupid cage drivers causing back ups) drops my milage to 45 (43 in the winter). Once on the open road, he milage climbs back up to near (if not above) the 50 mark. What this tells me is that our Burg 650 just doesn't like sitting at a stop light. It is an open road, get out of my way type machine - I just wish I could accomodate it as often as it would like.

 

It's not the sitting at the light that's so bad, it's the constant starting and stopping and lack of a steady speed that cut's MPG's in city type driving.
I have a 20 mile commute, and I average 52 or 53 mpg. This is mostly steady state driving between 60 and 70 mph (actual), with a couple stoplights in the middle. Sometimes the traffic at one of the stoplights backs up for as much as a mile. If they ever eliminate these lights (it's on the list for sometime in the coming years) I expect to tick up by another mpg or two.