Gas Milage & Octane .... simple poll & question

[Big Troubled Bear]

40 MPG average on 93 octane unleaded

[TimJohannsen]

I have an 05 s2r 800.  Just calculated the milage at 58 mpg.  I went over 140 miles on a 3 gallon tank before the light even came on.  I put 2.45 gallons in.  Granted about 80 of those miles were highway.  But I don't ride like my grandpa.

[DoubleEagle]

'07 S4Rs w/ Full Termi Exhaust ,DP ECU, Open Airbox, !4T Frt. Sprocket- 34mpg- spirted riding ( which is most of the time). Rider is 233 lbs.

[larakat]

06 s2r1k
120 - 125 miles per tank (the smaller plastic one)

i pushed it out past 135 once, jonesing for a gas station

Same bike here.
135!?!?!?
Dude!  How'd you ride?  Cause you must of been running along side the bike to get there.  I can't make it past 125!   
But then again I can't stay out of the fat end of a gear to save my soul.

[Ducati_FR]

Hey,

I don't understand why I can't fill up my bike more that 2.5-2.8 gallons, even when ran empty.  Is there a secret about the last gallon I don't know about?

Thanks

[DuciD03]

ha!

I had forgotten about this poll and post; its intresting to hear what people are getting out of a tank of gas.

In order to get in 12 litres; about 3 ga you need to run beyond when the light comes on and into the reserve; which I wouldn't recommend ... do so at your own risk.

[Desmostro]

 The most scientific I've been was a slab trip to Tahoe from S.F.

I got 55 MPG using 91oct. with a new 848 (which may be messing up this poll)
My millage varied the most depending on riding position. If I stayed in a tuck out of the wind I got almost 55MPG. If I sat up a bit I got around 50MPG.

[DuciD03]

The most scientific I've been was a slab trip to Tahoe from S.F.

I got 55 MPG using 91oct. with a new 848 (which may be messing up this poll)
My millage varied the most depending on riding position. If I stayed in a tuck out of the wind I got almost 55MPG. If I sat up a bit I got around 50MPG.

1++ good point; I'v experimented with laying on the tank and tucking, this is the most aerodynamic profile i can get and actually perfer this on the highway provided theres not alot of traffic.  Once I sit up it shaves off 5 miles an hour on the speedo.

[psycledelic]

I consistantly get over 45 mpg on my 06 S2R800 running 93 octane.  I have a full Termi system without ECU upgraged and weigh 205lbs. 
Side note: might just be in my head, buy my Duc seems runs better and smoother on Shell gasoline. 

[cobrajet]

06 620 countryside commute on 91 octane, 50 to 52 MPG, 140 to 145 before light, except when cold like 40's and it drops a couple mpg. bill

[ellingly]

Bike is a 2006 S2R1000. O2 sensor disconnected, Staintune slipons. Mix of highway, city and riding on good fun roads.


Click thumbnail for bigger and readable pic.

Yes, I'm an ubernerd.

Note that I'm recording my economy how generally do in Australia which is in litres per 100 km. 5 L/100km is 47.0 US mpg, 7 L/100km is 33.6 US mpg. The overall economy since new has been 5.67 L/100km, or 41.5 US mpg.

The economy changes by around 0.5 L/100km between winter and summer (the effect of the ecu adjusting for requiring more fuel due to denser air in winter), and has gained maybe 0.7 L/100km as the motor has loosened up. To be even nerdier, the economy difference between winter and summer is pretty consistent with the additional fueling requirements. The temperature variation is rougly 25 degrees, which would give a fuelling requirement of about 7.5% more fuel.

[DuciD03]

Yes, I'm an ubernerd.

... LOL

How did you collect that info?!?  Impressive ....  [moto]

[ellingly]

... LOL

How did you collect that info?!?  Impressive ....  [moto]

I record the odometer reading every time I fill up, how much it cost, what it was, and how many litres I chucked in. I have a pretty good high-tide mark in my filler neck so I'm pretty sure I'm consistent with my fillups. How I actually record it is I spend 30 seconds typing it into my mobile phone as I go in to pay for my fuel, then save the message so I can retrieve it later. Every couple of weeks I type in the info into Excel and it spits out the graphs for me.

I use the same spreadsheet to record all of the costs with the bike. I have a paper copy of the service stuff, but I like to also have all the info somewhere else.

[JetTest]

09 696, SS Termi w/ECU and air filter, Ergal timing belt pulleys, 1800 miles, never get more than 125 miles before the fuel light comes on (2.8-3.1 gal.) about half the time 93 octane, other half 105 blue gas, runs much better on blue (highway). Bike seems to thrive at 95-100mph. Funny thing is my 2002 620 did almost exactly the same, just not nearly as much power (or fun).

[giordy]

M696, after about 2000 miles the average is 50.32MPG, with the best tank at 55.19 and the worst at 42.79.

I use 89 octane gas.

Giordy