| Author | Message | ||||
     M2nc |
I put two new entries to 08Uly's gas mileage database and had to kick around some numbers. 36 entries (shows 38 but I entered one twice today and I think I did the same thing some time back.) Start: Just under 29K miles Present: Just over 36K miles Average MPG: Just over 50mpg Worst MPG: Just over 40mpg Best MPG: Just over 61mpg (Logged one over 62mpg before the database) Shortest distance hitting reserve: 144.3 miles Longest distance on one tank: 220 miles Average distance hitting reserve: 184 miles Average fill up hitting reserve: 3.694 gallons 20 fill ups of the 36 hit reserve or passed 180 miles and I chickened out. Constant 60mph = 57 to 61 mpg Constant 70mph = 52 to 56 mpg Constant 80mph = 47 to 51 mpg Constant 90mph = 43 to 46 mpg Commuting: 40-45mpg Commute route: 11 miles each way with eight stops or street changes and posted speed limits from 35mph to 60mph. Average commute time 15 minutes, with light to moderate traffic. | ||||
| Froggy |
4th or 5th gear for those constant speeds? | ||||
| New12r |
Bout what I get! Great log. | ||||
| Rotorhead |
I'm just about to switch to a chain drive with a lower gear ratio. The stock belt drive has a 2.407 and the chain setup will give me a 2.286. I got this cool excel sheet to calculate the speeds and final drive ratios. Once I plugged in the ULY specs and got the final numbers. At 3500 rpm's it should be 76 MPH instead of 73 MPH . Time and miles will tell if this will improve my MPG. It will not be completely scientific, I just moved from the east coast living at 300 MSL to 5000 MSL.
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| Paul56 |
I think the 5k altitude will make a big difference for you. I've done 90%+ of my 53k miles at sea level, but every time I ride at higher altitudes I get 5-10% better mpg. | ||||
| M2nc |
4th or 5th gear for those constant speeds? Fifth gear. I think the 5k altitude will make a big difference for you. I've done 90%+ of my 53k miles at sea level, but every time I ride at higher altitudes I get 5-10% better mpg. I agree. I live at or below sea level, but love to ride to the mountains. I have gone many times this summer. A lot of my best mileage has been up at 2-4K feet. | ||||
| Desert_bird |
. . . my experience is the same regarding mileage and elevation. I got the best mileage ever on my 08 crossing mountain passed through Silverton and Ouray - 54 MPG - way loaded and at 8-10k feet. Mileage dropped as elevation got lower, to near 42 MPG at sea level. | ||||
| Atoms |
M2nc, Do you weigh 35lbs? My BEST tank has been 46 MPG. My average is around 43. I weigh 215 lbs but most of the miles are 2 up and loaded for camping. I do tend to speed, but how can one do otherwise with such a great bike? | ||||
| Thrux181 |
Since you all are posting about gas mileage at different altitudes, I decided to ask this question. Basically at a higher altitude there is less air, there for the mixture would be richer. The posts are showing better MPG. Does this mean at lower altitude, where there is more air, that the mixture is too lean for a proper fuel/air mixture and less MPG? If so, I thought fuel injection was suppose to make those changes. Thanks, Bill | ||||
| M2nc |
Do you weigh 35lbs? Add a 2 in front and you got it. That is in gear. I weigh 215 lbs but most of the miles are 2 up and loaded for camping. The 1400 mile trip to WV was packed for three days of camping. Riding two-up does not make much of a difference. Even though there is the added weight, I usually take it easier with a passenger. So it's a wash. | ||||
| M2nc |
Does this mean at lower altitude, where there is more air, that the mixture is too lean for a proper fuel/air mixture and less MPG? No, since the fuel injection is computer controlled, as the air thins, the fuel is adjusted. As many at higher elevations will remind us at sea level, the Uly will not loft the front tire as easily in Albuquerque as it will in Jacksonville. |
