I hear some of you guys talk about getting 45+ mpg. I have a 103 in my 2011 FLHTK and rarely get better than about 35 mpg. My range odometer after fill up rarely indicates more than 200 miles. I have V&H dresser duals with 4" Rhineharts and a SE intake supposedly dynoed with a TTS. I typically ride with a passenger doing 75 to 80 mph on the interstate. Does this seem like way too low mpg? The only time I have ever been really impressed with good mpg was riding the Blueridge pkwy, of course it is slow going but I was getting around 45 mpg.

 

You are right in the range really. The guys claiming the big mileage are probably using the bikes odometer, which will inflate miles traveled by anywhere from 2% to 6%. Then if they don't fill the bike up the same every time, the numbers can be all over the board.

I usually get around 37-40 real MPG based on GPS mileage. I have my GPS set to give me a low fuel warning at 190 miles. I can travel close to 230 on the tank, so that gives me plenty of time to look for fuel. My 103 is a normal stage one with cams and FM header.

The speed you are traveling two up will definitely not allow for the best fuel economy. If you dropped it back to say 60-65, you should notice an improvement in your miles per gallon. You will also get better MPG with non-ethanol gasoline.

 

Here is your answer. When riding at 60 on back roads with not many lights, I get close to 300 per tank (I'm always solo), but the faster you go, and the more you carry, the worse it will be.

 

Pretty much what Joe said. I try and get my tank filled the same each time and if I am running the super slab using the cruise control, I can get maybe 42 mpg. If I am running around town, that drops down to the 36-38 mpg area. Just a like a car....mpg goes along with how you operate the vehicle.

If I am lucky enough to find a station where I can get a tank full of premium gas without ethanol, I can get about 3-4 mpg more than normal. Unfortunately not that common for me.

 

Same for me!

 

I think you just answered your own question.

 

I'm running a FuelMoto stage 1 with their PowerVision map. I get much better than 200 miles when running 60's on state highways. Have not measured it but probably about in the 200 mile range at interstate speeds. Some of the people I run with have smaller tanks and either that or the butt numbness range cause a fuel/rest stop. My fuel warning light will come on the dash with about a gallon left in the 6 gallon tank. Don't think I have ever put more than 5.5 gallons in at a fuel stop. Lots of black limiteds here.

 

Stock (now cat less), last three tanks were all over 200 miles, range says 50-60 to go (265 on a fill). 45 mpg first two, 42 on last (only tank with ethanol) over 6,000 miles and I have not got less than 37 and that was during break in, however I rarely run over 70 and usually under 60 (commuting & back roads)

 

I wish I had the patience to ride at 60 for a whole tank just to see.

 

I usually get 35 - 40 depending on whether city, country roads or Interstate.