+- The CB1100 Community Forum (https://cb1100forum.net/forum)
+-- Forum: Honda CB1100 Discussions (https://cb1100forum.net/forum/forumdisplay.php?fid=5)
+--- Forum: General Discussion (https://cb1100forum.net/forum/forumdisplay.php?fid=6)
+--- Thread: Holie Crappy MPG's, Batman! (/showthread.php?tid=2490)
RE: Holy Crappy MPG's, Batman! - Chapomis_imp - 02-25-2016
it would be worth it if you could fill it with non-ethanol gas
RE: Holy Crappy MPG's, Batman! - 4 Paws_imp - 02-25-2016
Started running non-ethanol in my bike since prices have dropped so much. Can't feel a lot of difference on the CB.
RE: Holy Crappy MPG's, Batman! - Carguy1959_imp - 02-25-2016
With my windjammer, I get right at 40 mpg. I don't ride it easy. Most of my riding is 20% highway, 30% city and 50% back roads. I have not gone on any long trips yet.
RE: Holy Crappy MPG's, Batman! - LongRanger_imp - 02-25-2016
And out of left field, I've never seen less than 60 mpg on mine. It's the altitude. The bike usually averages around 62 mpg, but honestly, it really doesn't matter to me.
RE: Holy Crappy MPG's, Batman! - Carguy1959_imp - 02-25-2016
I wonder what effect different altitudes would have on mpg.....
RE: Holy Crappy MPG's, Batman! - LongRanger_imp - 02-26-2016
I rarely ride below 8,000'. Less oxygen at altitude means less fuel is required to maintain the stoichiometric ratio. Or something like that.
RE: Holy Crappy MPG's, Batman! - Frulk_imp - 02-26-2016
I filled up this morning and the bike had 121 miles on the trip meter since last fill up. Took 2.89 gallons...that comes out to 41.86 miles per gallon. Have never hit 50 mpg.
RE: Holy Crappy MPG's, Batman! - Carguy1959_imp - 02-26-2016
My current altitude is 201ft. I have never got better than 42mpg. My bike also has always run rich.
RE: Holy Crappy MPG's, Batman! - flynrider - 02-26-2016
(02-26-2016, 10:10 AM)LongRanger_imp Wrote: I rarely ride below 8,000'. Less oxygen at altitude means less fuel is required to maintain the stoichiometric ratio. Or something like that.
Basically, the engine makes less power at higher altitudes. Less power means less fuel consumed. With less oxygen available in a given volume of air, the EFI system reduces the amount of fuel it sprays in.
Slide carbs in old bikes wouldn't compensate for thinner air, so riding at high altitude meant that you wouldn't see any mpg improvement at altitude, plus your rich running bike would perform badly. I love EFI
My all time best mileage was a high altitude afternoon ride in Colorado. Buena Vista, Leadville, Breckenridge, Salida. I managed 57 mpg on that tank.
RE: Holy Crappy MPG's, Batman! - pdedse - 02-27-2016
My '14 Standard I bought new Jan 2...not much time to ride with the rains in OR, but it has 260 miles now, first time I bothered to check MPG, the bike said 41, by my own calculation, 39.6 (95m/2.4g). Around town riding mostly, only about 15 of that on the hiway, 3-4 outings. Reasonable. I did find an ethanol free pump at a station just a mile and half away. I think I'll use regular for most of the riding season, then the eth free gas over the winter when the riding slows down.