I have gotten a low of 39.70 MPG to a high of 47.80 MPG on my 2013 FLHTK. Pretty much stock except for the baffles drilled out and a set of FL-VIED-10 installed to richen the mixture enough to get rid of the pinging!


I am very happy with that MPG, as I tend to ride a bit spirited!!

 

The odometer on the bike cannot be trusted because it is influenced by the inaccurate speedometer on these bikes. The speedometers routinely read 3 to 6 miles faster than you are traveling and the odometers roll up more mileage than you have actually traveled. So you will think you are getting better fuel economy than you really are.

If you have a gps you can carry with you for about half a tank (or whole tank) of run time, use those gps miles, fill the bike back up, and do the math. That will give you the most accurate mpg figure.

Stock bikes using pure gas will get the best mileage...most of the time. Ethanol blended fuel will diminish fuel economy ....along with it's other detrimental properties.

 

Correct. I've been able to dial in my speedo/odo with the Powervision...mine was off by 5% giving a false read by about 2 MPG too many. Non ethanol fuel is good for a couple more MPG, as does riding in higher elevation.

 

Using a correction factor that my Gps and speedo differ by less than 2 mpg at 60 mpg, my over all average mpg would be 42.04 instead of the 42.9 I happily posted. Since I am only interested in relatives, I shall continue happily and in innocent bliss using my bikes trip meter, the gas pump volume and my app, knowing, but not recording that I am probably getting almost 2% less. But neither do I record passenger weight, camping stuff, road conditions, weather conditions or altitude. If I did, would I be happier, a more contented motorcyclist? Nope, just ride, use the stats in front of you and save your corrections for forum discussions on rainy winter days.

 

I started off in the spring at 48 mpg, by the end of season it was 51mpg.
Maybe the difference between a new back tire and worn down to 1/32 at the end of season?? Speeds mostly 55-65 mph.


2005 FLHRSI 95" se203's, se heads and a Baker OD6.

 

I just got a 2008 FLHTCU in July. It only has a stage 1 done to it. I was getting around 38 in the city and 35 on the highway. Coming from mid 40's on my 2006 FLHR I was a little disappointed.

The bike has a super tuner on it also. I did the smart tune and that did not help. I wanted to improve the mileage so I decided to deceased the closed looped biased by 10 percent all around. The weather is turning crappy here by me so I have not been able to run a full tank to track the changes. I did take the bike for about a 20 mile ride after I changed the table and did not see any changes in the rideability.

 

i'm probably **** about recording my mileage and fuel at fillups for all my vehicles. i get anywhere between 38-43 mpg, depending on how i twist the throttle. i get @ 43 when cruising at 55-60 on the interstate but down to 38-40 when traveling at 70 or so. my 2010 got similar results and my 2005 yamaha 102 ci gets right around 40. beats the 18 mpg i get out of my ram 1500 so i commute with it every chance i get. just about ready to hit 29000 on the 2013 FLHTK with a stage one mod.

 

2012 CVO roadglde 120r. Freshly dynoed @132 ft lbs. Torque

Freeway for 120 miles avg speed 90 wth burst to triple digits

Avg 30 to 32.

Backroads at 55 60 mph. Avg 43

Its all about trottle position and speed

The faster you go the more fuel it takes.

If i run normal around 70. Its about 38 with ethanol fuel. Slightly higher with real gas

 

Haven't checked speedo with tuner ,but my LEO son clocked me with radar at 56 mph ,my speedo indicated 57. Brothers sporty reads 60 while beside me at 55.

 

Did you fill all the way up at that gas station? If so, how much did you put in the tank?