[Plow13]

I took a long trip Sunday, about 240 miles round trip. On the way out I was about 85% highway at 70-80mph and I averaged 59mpg. On the way back I went on the interstate at 55-65 and I got close to 75 mpg....so what's that sweet spot speed?

 

[v8eyedoc]

There are so many factors to be considered that your question is not an easy one to answer. Wind - road surface - terrain (hills)... Is your speed constant or not.?? Is there traffic in front of you? Are you unknowingly drafting.????? Even the ambient temperature makes a difference.......

 

[Ralph M]

I find 50/55 and that it seems to do better if you accelerate smartly up to
speed rather than slowly, a tend to accelerate up to just over the speed I
cruise at then let it settle down to that speed, in theory the best cruising
revs for MPG are max torque revs 5750?

http://www.fuelly.com/driver/blackfive/burgman-400

 

[29534]

My 400 seems to get the best mileage between 50 and 60. I ride crooked mountain roads most of the time and it doesn't seem to help if I try to baby it. I just ride it normally to get the best mileage.

 

[Buffalo]

For the most part I try to keep my 06 400 at or below 65 mph (actual as measured on the GPS). It runs just fine above that speed but uses much more gas. I seem to get my best mileage when running between 55 and 60.

 

[TwoWheelTim]

As a general statement I get the best MPG if I keep the rpm below 6000 (65 MPH actual GPS). On my 886 mile round trip last week I averaged 62 MPG, but on one leg with a nice tail wind and gentle cruising on country roads I attained 68 MPG calculated at the pump. I was also carrying about 50 lbs of camping gear, and my sleeping bag on the pillion.

I am happy with anything over 60 MPG. That is what I base my range to the next fill up on.

 

[QuantumRift]

You'll have to figure THAT out for your self and YOUR ride.

It's intuitively obvious to even the most casual observer that higher speeds consume more fuel; so you apparently fount it! :cheers:

I took a long trip Sunday, about 240 miles round trip. On the way out I was about 85% highway at 70-80mph and I averaged 59mpg. On the way back I went on the interstate at 55-65 and I got close to 75 mpg....so what's that sweet spot speed?

 

[Scootereno]

It's more like what RPM for the best mileage!
I have found that between 5700 - 6000 rpm is where I average my 70mpg.
Of course that is right at the return speeds you mentioned. :thumbup:

 

[v8eyedoc]

As an experiment - last Sunday, I filled up my Ingrid Burgman........and rode about 60 miles - being careful not to crank it on from a standing start and keeping my speed to 50-55 MPH with engine RPMs about 5,000 to 5,500 - a was surprised to get an indicated 66 MPG... So.I think that there is a "sweet spot" for getting the best MPG.