MPG? What's yers?
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Junior Member
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Joined: Mar 2011
Posts: 24
From: Hong Kong
MPG? What's yers?
Greetings Fellow (off) Road Warriors:
I have a 2011 Fuel Injected KLX 250. In Hong Kong we use litres and when I
fill up I zero the km on the trip meter. The next time I fill up, I take the total kms ridden from the trip computer and divide by the litres that I purchased from the gas station resulting from kpl (km per litre). If you multiply that number by 2.85 you can convert to mph. I am from the US so I have a better relative understanding of mph. Here are some of my recent results (see below). I have been riding longer off road and of course after the break-in period, riding the bike harder so that explains the decreasing mph (I think so). I bought the bike brand new with 000 kms and it has about 1800 km on the odometer at this point.
Is anyone else getting numbers like this? The average across these 5 readings is about 87 mpg. Is that possible? It seems exceptionally good to me for some reason. I need a reality check.
Cheers!
126 km on 3.85 lts. = 32.72 kpl x 2.85 = 93.27 mpg
86.6km on 2.63 lts. = 32.93 kpl X 2.85 = 93.84 mpg
103km on 3.44 lts. = 29.94 klp X 2.85 = 85.33 mpg
173 km on 5.49 lt = 31.51 kpl X 2.85 = 89.80 mpg
130 km on 4.70 lt.= 27.66 kpl X 2.85 = 78.83 mpg
I have a 2011 Fuel Injected KLX 250. In Hong Kong we use litres and when I
fill up I zero the km on the trip meter. The next time I fill up, I take the total kms ridden from the trip computer and divide by the litres that I purchased from the gas station resulting from kpl (km per litre). If you multiply that number by 2.85 you can convert to mph. I am from the US so I have a better relative understanding of mph. Here are some of my recent results (see below). I have been riding longer off road and of course after the break-in period, riding the bike harder so that explains the decreasing mph (I think so). I bought the bike brand new with 000 kms and it has about 1800 km on the odometer at this point.
Is anyone else getting numbers like this? The average across these 5 readings is about 87 mpg. Is that possible? It seems exceptionally good to me for some reason. I need a reality check.
Cheers!
126 km on 3.85 lts. = 32.72 kpl x 2.85 = 93.27 mpg
86.6km on 2.63 lts. = 32.93 kpl X 2.85 = 93.84 mpg
103km on 3.44 lts. = 29.94 klp X 2.85 = 85.33 mpg
173 km on 5.49 lt = 31.51 kpl X 2.85 = 89.80 mpg
130 km on 4.70 lt.= 27.66 kpl X 2.85 = 78.83 mpg
Last edited by FLYNLOMOTO; Aug 8, 2011 at 12:10 PM.
Senior Member
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Joined: Mar 2010
Posts: 740
From: South Puget Sound, WA
The speedometers, in the US at least, have a huge error along the lines of 10%. Not sure on the odometer but I would expect the same 10% error.
I have measured around 70 mpg on fully road tanks, and as little as 35 mpg riding hard trails in an enduro race so no breaks.
My old XL200 could get 96 mpg pretty easily on the road.
I have measured around 70 mpg on fully road tanks, and as little as 35 mpg riding hard trails in an enduro race so no breaks.
My old XL200 could get 96 mpg pretty easily on the road.
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Joined: Jan 2011
Posts: 419
From: North Shore of Lake Superior
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Your conversion factor isn't correct. To convert from kilometers per liter (kpl) to miles per gallon (mpg), the formula is: kpl x 2.35 = mpg. So your numbers converted are more like 77 mpg on the high end and 65 on the low end; that seems more reasonable. This does not account for odometer error, so actual consumption is probably a bit higher. From what I've seen, U.S. Speedo error is around 10%, odometer around 6% - both read higher than actual.
I have a 2009 U.S. model KLX250S, stock gearing, KLX300 exhaust, rejetted. My fuel economy has always been on the low end compared to others' reports, even when my bike was bone stock.
My cruising speed is usually 55 to 70 mph (indicated), and I usually see 53-56 mpg at each fillup. I don't think I've ever seen better than 58 mpg on the road, and in hard trail riding I've seen as low as 32 mpg or so.
I have a 2009 U.S. model KLX250S, stock gearing, KLX300 exhaust, rejetted. My fuel economy has always been on the low end compared to others' reports, even when my bike was bone stock.
My cruising speed is usually 55 to 70 mph (indicated), and I usually see 53-56 mpg at each fillup. I don't think I've ever seen better than 58 mpg on the road, and in hard trail riding I've seen as low as 32 mpg or so.
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Joined: Mar 2011
Posts: 695
On my SF, a true duo-sport jaunt including a mix of city, highway, gravel trail, single-track & mud, will get me ~4.5l/100km (the common way of expressing fuel consumption in metric in Canada). This translates roughly to 55mpg.
I find I get particularly poor economy on the highway due to the WOT. As a matter of fact, my 919 often turns better numbers than my SF on the highway!
Incidentally, I have a 13T CS sprocket, TBR M7 slip-on with jet kit and Uni air filter without snorkel.
I find I get particularly poor economy on the highway due to the WOT. As a matter of fact, my 919 often turns better numbers than my SF on the highway!
Incidentally, I have a 13T CS sprocket, TBR M7 slip-on with jet kit and Uni air filter without snorkel.
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Junior Member
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Joined: Mar 2011
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From: Hong Kong
Thanks for the info, gents. Especially thanks to LUTZ for the correction. I recalculated the mpg using your formula which I also confirmed through extensive research (not really). Here are the results:
126 km on 3.85 lt. = 32.72 kpl X 2.35 = 77 mpg
86.6km on 2.63 lt. = 32.93 kpl X 2.35 = 77 mpg
103km on 3.44 lt. = 29.94 klp X 2.35 = 70 mpg
173 km on 5.49 lt. = 31.51 kpl X 2.35 = 74 mpg
130 km on 4.70 lt. = 27.66 kpl X 2.35 = 65 mpg
Given that it's a new bike with FI, these are much more realistic numbers. I should have mentioned that the bike is stock except for the Leo Vince X3 slip on
pipe. I suspect that the X3 was partially responsible for the dip in mpg observed.
126 km on 3.85 lt. = 32.72 kpl X 2.35 = 77 mpg
86.6km on 2.63 lt. = 32.93 kpl X 2.35 = 77 mpg
103km on 3.44 lt. = 29.94 klp X 2.35 = 70 mpg
173 km on 5.49 lt. = 31.51 kpl X 2.35 = 74 mpg
130 km on 4.70 lt. = 27.66 kpl X 2.35 = 65 mpg
Given that it's a new bike with FI, these are much more realistic numbers. I should have mentioned that the bike is stock except for the Leo Vince X3 slip on
pipe. I suspect that the X3 was partially responsible for the dip in mpg observed.
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Joined: Aug 2010
Posts: 71
From: Chiba, Japan
Your conversion factor isn't correct. To convert from kilometers per liter (kpl) to miles per gallon (mpg), the formula is: kpl x 2.35 = mpg. So your numbers converted are more like 77 mpg on the high end and 65 on the low end; that seems more reasonable. This does not account for odometer error, so actual consumption is probably a bit higher. From what I've seen, U.S. Speedo error is around 10%, odometer around 6% - both read higher than actual.
I have a 2009 U.S. model KLX250S, stock gearing, KLX300 exhaust, rejetted. My fuel economy has always been on the low end compared to others' reports, even when my bike was bone stock.
My cruising speed is usually 55 to 70 mph (indicated), and I usually see 53-56 mpg at each fillup. I don't think I've ever seen better than 58 mpg on the road, and in hard trail riding I've seen as low as 32 mpg or so.
I have a 2009 U.S. model KLX250S, stock gearing, KLX300 exhaust, rejetted. My fuel economy has always been on the low end compared to others' reports, even when my bike was bone stock.
My cruising speed is usually 55 to 70 mph (indicated), and I usually see 53-56 mpg at each fillup. I don't think I've ever seen better than 58 mpg on the road, and in hard trail riding I've seen as low as 32 mpg or so.
I get 59mpg (US), 70mpg (UK), 25kpl
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Joined: Mar 2011
Posts: 854
From: Northern Utah
My speedo ('09 KLX250s) was off -9.7% from the factory. I fixed it with a SpeedoDRD unit. Now I have MPH calibrated to my GPS... exactly to the tenth!
Oddly enough, my ODO is now off by quite a bit... not nearly 10% like the speed was, but somewhere around 3-4%. I have yet to quantify the ODO error exactly, but I will, as soon as my broken collar bone heals.
