Fuel mileage

[TQuentin1]

Folks,

I see a lot of chatter about fuel mileage. Let's see some data.

Tell us your model, engine size, tranny, mods, type of riding (mostly highway or traffic - stop n go), with or without passenger.

I am adding a separate chart for the Sportsters.

TQ

 

[Joyflyin]

Good post TQ, I usually figure my fuel mileage after every fill up. (Bad habit, I do that for all my vehicles). The best I ever got was 49.7, the worst was 40.2. Generally I average about 45 mpg. I have V&H pipes & the stage 1 as far as I know. Otherwise stock. I think it is the 88/1450 engine. (Sometimes I get dyslexic with the numbers). :s

This is based on a mix of highway riding, country back roads, and some town. The high figure was a lot of highway, back & forth to work in light traffic, the low, well, that may have had some hot dogging mixed in with some stop & go. That is about as documented as I get. Looking forward to seeing the other results.

 

[Dr. Dolittle]

2008 FLHX with entirely stock TC96 engine/exhaust. Normal city/country solo riding gives me around 45MPG. More highway riding bumps it up to 50 to 52MPG. I've read that as the motors age, the mileage may actually go up a bit. The only thing I care about is that no what type of riding I do, I'm getting unlimited Smiles Per Gallon!!

 

[TQuentin1]

Joy,

That is very good mileage from my vantage point. My Ultra has NEVER gotten over 40. The chart attached is my fuel mileage over the past year or so. I too check and record everytime I fill up. Looking at the chart, the blue is the mpg, and the green is the $/mile. Trend lines are to see what is happening on a rolling basis.

• '03 Ultra Classic
• 88 ci
• SE high flow air filter
• SE slant cut slip ons
• SE 6-speed
• Amsoil 20W-50 motorcycle engine oil, Spectro 6-speed tranny oil, Spectro primary oil
• Mostly stop-n-go on daily commute to work with some highway
• Peaks on chart are day trips - highway

TQ

 

[Dr. Dolittle]

Joy,

That is very good mileage from my vantage point. My Ultra has NEVER gotten over 40. The chart attached is my fuel mileage over the past year or so. I too check and record everytime I fill up. Looking at the chart, the blue is the mpg, and the green is the $/mile. Trend lines are to see what is happening on a rolling basis.

• '03 Ultra Classic
• 88 ci
• SE high flow air filter
• SE slant cut slip ons
• SE 6-speed
• Amsoil 20W-50 motorcycle engine oil, Spectro 6-speed tranny oil, Spectro primary oil
• Mostly stop-n-go on daily commute to work with some highway
• Peaks on chart are day trips - highway

TQ

I'm certainly no expert but I'm going to say the combination of the SE air filter and the stop n go traffic is what's keeping your average mileage lower than most.

 

[Joyflyin]

I did forget to mention that I have a 2005 deuce. I wish I had the time to figure out how to do the charts & graphs. I am having a hard enough time switching from a PC to a Mac. I may try something with Excel, enter the data and see what happens. I just have a fairly decent memory sometimes (mostly for useless knowledge) and can remember the highs and lows. Hey, here's one to make everyone feel good: for my bucket truck at work, the boom runs off the engine, so the more I work the worse my mileage gets, best mpg was 22 driving highway to Buffalo, NY and the worst was 3.7mpg just working. Overall on that I get 8-10 mpg.

 

[Twisted Grip]

Lets see if I can Add to the this

2008 TC96
3800 Miles On It
SE High Flow Air Filter
Sert
Rinehart 2 into 2 short/staggered
SERT
Dyno-84hp 89tq
M-1 Vtwin In The Motor
HD-F+ In the Primary
Spectro In The Trans (Thanks Glider!)

Mostly Around Town, Back Road/Country Road Riding, 25 Mile Round Trip To Work Per Day / 5 Days A Week.

Max MPG Has Been 42mpg On Long Distance Runs **(I think dropping it into 6th at 60/65mph is what helps the mpg on the long runs IMO)**
Average Daily Riding Is 38mpg **( Mostly 4th gear and some 5th gear riding)**

I am Happy with what i am getting, I guess with more miles on it, it may improve (Or stop twisting the Throttle!)

 

[bwalsh22]

2006 FXDBI Street Bob
AN Big Sucker Air Intake
Thunderheader Exhaust
SERT - Not sure what the settings are, never dynoed
I think that is all, purchased it with this stuff.

Had it for the last 1000 miles and from what I remember, I have gotten between 42 and 48 MPG.

Mostly take it on the commute to work, which are backroads, but stil do mostly 50, with a few sections down to 25, then some highway at 60-70MPH.

I'm pleased with the MPG, but not as pleased as I am with just being on the road...priceless.

 

[ProF]

Hmm, you all are doing much better than I am. My 03 RG with V&H 2into1 and KN air filter and Revtech DFO only got 31.5 on my last fill up. I will keep watching it and see if that changes. I had some repair work on the bike during the last fill up cycle, so maybe next time will be better. 31.5 seems awfully low.

 

[Dr. Dolittle]

Hmm, you all are doing much better than I am. My 03 RG with V&H 2into1 and KN air filter and Revtech DFO only got 31.5 on my last fill up. I will keep watching it and see if that changes. I had some repair work on the bike during the last fill up cycle, so maybe next time will be better. 31.5 seems awfully low.

That does seem suspiciously low - you might as well trade in the bike for a Toyota!