OK, what can I do, without spending tons on tuners, etc, to get better gas mileage?? I'm only getting 28-36 mpg. I'm used to as much was 44 on my 2016 StreetGlide.
Gas mileage
- Thread starter bluesman
- Start date
Your right in the ball park MPG Wise...Don't forget you are comparing Apples to Oranges.... The T/G is quite a bit heavier, and cuts though the air like the proverbial Outhouse on wheels.....
Your gas mileage will vary a lot depending on speed, headwind, one up or two up and a whole bunch of other variables. The mileage your getting falls into the normal range of what I've seen on a TriGlide for the past 6 years. Definitely can't compare it to your old two wheeler like Rhino2 said.
- Thread starter
- #4
Kinda like the aerodynamics of a brick
I average about 32 mpg and I'm a lead foot. 
- Thread starter
- #6
I average about 32 mpg and I'm a lead foot.
I am definitely a leadfoot(lead wrist??). I thought I was gonna give up fast riding & twisties when I switched over but I can keep up with the Road Glides, no problem. Plus I can easily pop a wheelie if I want to. LOL
Jack Klarich
Gold Member
Is this a M8 engine?
They run richer than Twin Cams
Have you tried short shifting gears?
With knock sensors on these engines you don't have to wind em out before shifting
They run richer than Twin Cams
Have you tried short shifting gears?
With knock sensors on these engines you don't have to wind em out before shifting
ISP-FL
600+ Posts
I had just over 20,000 miles on my 16 TG when I traded for my 19. I was lucky to get 30mpg. The dealership said the new M8-114s get better mpg. We will see.
You ride 2 up though, right? So that's probably right. I ride solo so 32 mpg is OK for me. On the highway I do get closer to 38 mpg.
I've tracked my mileage on my cars and bikes ever since leaving the Marines in 67, where I had to do all that. It's just a habit.
MPG is pretty much subjective. Depends on road condition, speed, tires, wind speed and direction, temps, engine modifications, etc. My results are averaged over thousands of miles and time. On a stock TG.
Joe, In the 972 miles that I have put on the new 114 M8 trike, I have noticed that before it is even fully broken in that it seems to be getting 1-3 MPG better than my similarly equipped 107 M8. I really like the way the new engine is performing. You migrated from the TC103 but I have had two subsequent migrations to get to the 114 M8 and I notice significant improvements in the interplay between the new M8 engine and the trike itself. Much smoother and more pleasant to ride.
Past two weeks I've tracked my miles and mpg closely. 33.7 mpg on rural hi-way and city combined. 37 mpg on recent short interstate trips. Not uncommon to get 38 mpg on longer trips with gas and dash fill ups.
DK Custom Products
Sponsor
Congrats on your new ride!
As already stated, mpg varies greatly based on riding habits, roads traveled, speeds, shift points, etc.
There are two things that you can do that will have an impact on MPG-
1. Run it cool, the cooler you can get it to run, the more efficiently it will produce power, resulting in better mpg. Here is a LINK to a Report on this subject.
2. Do not feed oxygen depleted air into the intake. The default setup, from the factory, does this. For very little $ you can change this, resulting in better power & better mpg. See Report at this LINK.
Kevin
MILEAGE
Mileage is what it is u are the only one that can control it. Its in the right hand. You want it get there sooner you leave earie end of it …
Mileage is what it is u are the only one that can control it. Its in the right hand. You want it get there sooner you leave earie end of it …
ISP-FL
600+ Posts
It is much smoother and nicer to ride. Just coming up on 600 miles and I haven't even tired to track my mpg yet. Good news if it gets a little better than the 107 M8 right out of the box though, because my buddies M8 got better mpg than my 103. One thing I keep noticing is that the fans continue to run after shutting it down almost all the time, whereas my 103 seldom did unless it was really hot outside.
My 2017 M8 Fans also ran on after i shut it off....Sounded like the Valkyrie i once had...
Joe, Harley I believe had changed the parameters between the 103's and the M8's in terms of how the fans were actuated. I think the M8 rely a bit more on ambient temps rather than just engine temps IIRC. Bob
Jack Klarich
Gold Member
Bob, the cylinder head temp sensor got moved to the rear cylinder with the M8 engines
It is shrouded by the air cleaner back plate, so IMO it is seeing higher temps
I'm with rhino, a triglide is heavier, and less aero dynamic. I ride a 2015 TG, with stage 1 high flow air cleaner and stage 1 screaming eagle street cannons . I also upgraded the ECM. I average between 36 to 42 depending on how hard I ride. About what everyone else is getting.
I have wondered...does it hurt anything to pop a wheelie?
Not sure what I get "miles per gallon," BUT I know I get PLENTY of SMILES PER GALLON!
DK Custom Products
Sponsor
Popping a wheelie does not have nearly the potential to "hurt" something as coming down from a wheelie. lol
Coming down hard will stress your neck bearings, potential to blow out the front suspension and more.
Land that front wheel gently.
Popping a wheelie will stress all components of the drive train...from the crankshaft, to the compensator to the clutch to the belt to the differential, and don't forget the engine mounts and the swingarm pivot.
Wow, does not sound like a good idea...but they are fun!
Pulling the front wheel up a bit when taking off from a stop, or when upshifting is not nearly as hard on the trike as sitting at a stop or slow rolling and purposely pulling the front end up as high as it will go.
Oh, and lets not forget the mufflers dragging, acting as "wheelie bars".
Here's a photo of my current slip-ons-
That said, I have had no issues with either of my TG's from pulling wheelies. When we were making the video below I really thought I was going to "pay" for it. But that was almost 20,000 miles ago and have had zero issues.
Kevin
When I was younger I did all kinds of crazy stuff. Now that I am older I prefer to keep all three on the road.
Jd1a
90+ Posts
First fill up: 30 mpg.
On my 17 M8 the wife and I road to Daytona in Oct 2017 towing a small trailer 150 lbs empty mostly highway until we got to Lake City then two lanes to Daytona,Stock tune and air cleaner with Street Cannon slip ons mileage was between 30 to 32 mpg.But I also don't run ten over the speed limit try to stay right on the speed limit.Even if it was below 30 I cant complain, that's a lot of weight to push and they are as aerodynamic as a brick.
windshield
How much do you think a curved windshield, (over the stock) will affect the mileage ?
How much do you think a curved windshield, (over the stock) will affect the mileage ?
Probably not much imo. I think the bigger problem is those huge fenders.
Was just "curios", installing the touring lite tint 9''(LRS).. I would think it would make a noticeable difference.(mileage wise) Has anyone check the before and after, with the same height shield?
The stock shield is 10'', if it deflects the air 2''-3'' above,,, just "thinking" about going with the 9''.
THOUGHTS??
Thanks.......
The stock shield is 10'', if it deflects the air 2''-3'' above,,, just "thinking" about going with the 9''.
THOUGHTS??
Thanks.......
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