The problem with trying to estimate you mileage is that that is exactly what your doing, estimating. With only a 5-6 gallon tank and the variable of just how full you got it each time you could be off by 1/4-1/2 gallon each time.

Point being if you fill it till the pump stops, that could be different for each pump. Also I have found by bumping mine around I can get more gas in after the first "full" indication.

Dodgey at best! But can can give you rough estimate of mileage in case something ch ages dramatically indicating you have a problem.

At 225 miles per tank a 1/2 gallon variance is 5 MPG

 

Most stock bikes with nothing done well get the best mileage. (Speaking about 2009+ touring models)

However, with no mods what so ever, they bike is running very lean!

When I first got my ride in May 2009, I was getting 265 mile a tank. But I was riding it like I as driving Miss Daisy around.

Now that I have done some engine upgrades, I average about 230 miles.

But it sure is more fun the way she rides now!




YB

 

MPG can vary a lot ,weather,and riding style probably biggest. My 09fxstc was consistent 45-50. Highway. My 14SGS with stage one 41-45. I am careful to fill my tank to same level every time,on my glide there is a flap just about two inches down from the cap ,that's my fill mark. A friend with a14SG slip ons only,has gotten 52 highway during a ride we took to Columbus and back,60-65MPH.

 

As far as estimating,if your consistent on your fills you should get pretty close to actual mpg,until you run through the gears with WOT,oops there goes the avg. A buddy has never checked his on his sporty,he doesn't care,he just rides!

 

Bike as described in sig....two up 99.9% of the time, 32mpg to 42mpg. So I'll say I average 37mpg. It's all good

 

Mines playing up big time at the moment. Bought the bike second hand, 09 King Classic 103ci kit, AC upgrade and easy start cams and I was getting 230 miles to a tank now for some reason only getting 160. Have not changed a thing, any clues anyone?

 

That's your reason why.
Cool if your happy running stock.
Me?
I think stock sucks, not too mention b o r i n g!

 

2008 SG, 43 around town, 50 highway. If I behave! JR

 

Too each his own. The bike has run great for a very long time with no break downs. Could happen yeah, but you mess with the baseline and things start to go wrong.
I commute during the week and ride for fun on the weekends. Nothing boring about this bike .. I've always kept up and the thing has great pick-up. Everybody got to have that 5 extra HP even if it means losing reliability.
I don't race or ride crazy .. been there and got reckless tickets. Never want to go through that again.

 

I just returned from a trip to Deadwood with the wife and loaded down the bags. I was getting about 38.5 the whole time