Outstanding MPG

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Jul 13, 2009 | 12:13 PM

#41

mhud

Road Captain

Joined: Sep 2007

Posts: 714

Likes: 0

From: Western,NC

I got 42-45 depending on my wrist with the stock 96. I now get the same with the 103 and 255 cams.

Jul 13, 2009 | 12:22 PM

#42

pork

Cruiser

Joined: Jun 2009

Posts: 217

Likes: 0

From: Central Texas

Quote:

Originally Posted by BigG2009FLHRC

I have the suspicion they are pulling it out of where the sun don't shine. I think mid to high 30s is reasonable but above I'd like to see a bike that does not run mile after mile on cruise control get above 40. I drive all sorts of places and not much cruise control so my avg is usually about 35 -38. That includes all miles not just the one little three hour run where I got the good mpg...

My wife and I consistently get 49 to 50 mpg on lunch trips of 80 to 150 miles around home, on our '08 Road Kings. We do live in flat country, though. I check the mileage at every fillup. Up until about 6 months ago, we were taking some longer trips, up to 2500 miles, with her on her '08 Road King and me on an '08 Road Glide that I had then, and we consistently got 54 mpg on the interstate, on each bike, as well as on smaller roads back East, or through the western states. Some of it was even through fairly hilly country in AZ, UT, WA, OR, and ID. We always ride with her in front, and she almost always uses her cruise control (carpal tunnel). I seldom use mine on the day trips, but on the interstate, I use it and bump it up and down to match her speed. We do not speed, period. But, we stay at least within 5 mph of the speed limit. I previously had an '05 Heritage, on which I could get 50 mpg, if I was careful. On the same rides, she would get about 38 to 40 mpg on her Sportster w/slip-ons, stage I, and Thunderslide. Again, I always calculate the mileage at each fillup, no matter what kind of ride it was.

I believe all of the posts I have seen above, on the mileage of the newer bikes.

Jul 13, 2009 | 12:23 PM

#43

Blueflame1

Tourer

Joined: Mar 2008

Posts: 332

Likes: 0

From: Rockys

43 MPG (US) at 75 MPH
37 MPG (US) at 90 MPH

I do not believe that the bike or I could ride anythere at 50 MPH and most backroads here are 65 MPH and the supper-slab 75 MPH.

1995 Evo Ultra Classic, CV carb, #75 main jet, Thunderheaders

Jul 13, 2009 | 08:37 PM

#44

ucommbxny

Road Master

Joined: May 2008

Posts: 957

Likes: 1

From: New York / Texas

i just finished a road trip with my brother in law from Pa. to Va. ran the skyline drive, and the blueridge parkway, over the smokey mountains to Pigeon Forge Tn., then back to Pa. got 51 mpg average on this trip up a few miles from the norm.

Jul 14, 2009 | 11:17 AM

#45

09TxRoadKing

Advanced

Joined: Oct 2005

Posts: 65

Likes: 0

From: San Antonio, Tx

New bike now has about 1500 miles on it with about 50% of it 2up and it doesn't matter if I am in town or on the highway my mileage is always between 35-38.

Jul 14, 2009 | 01:23 PM

#46

iclick

Extreme HDF Member

Joined: Sep 2005

Posts: 11,615

Likes: 50

From: Baton Rouge, LA

Quote:

Originally Posted by Sefferdog

I got 35-38 religiously with my PCIII, no matter what I did. Switched to a TTS Thundertune, had Doc set it up, and now get between 43 - 48 mpg regularly. Was your PCV tuned by a dyno, or one of Jamie's maps? Could be the difference, the tune. Just a thought.

You can't extrapolate from your experiences that the PCIII gets lousy mileage while TTS is the other way around. Both simply tell the EFI how much fuel to inject at a given RPM and TP. The TTS does this by altering the ECU's configuration and the PCIII does it by intercepting the signal and altering it. The net effect is identical, and had you attempted to tweak the PCIII to get better mileage you would've reaped the benefits from that effort. I got 45-50mpg with a PCIII and later with a PCV, so it can be done regardless of the tuner you use, assuming it can be programmed to affect mileage in the range where you operate the bike. Both TTS and PC can do this.

Jul 14, 2009 | 01:28 PM

#47

cayers

Extreme HDF Member

Joined: Feb 2008

Posts: 13,422

Likes: 2

From: Las Cruces, NM

Highway two up 47 mpg. Stock 05 Ultra Classic.

Jul 14, 2009 | 04:12 PM

#48

jandt

Cruiser

Joined: Feb 2008

Posts: 169

Likes: 0

From: minnesota

average 46-48 mpg, Ive had 51-52 mpg more than a few times now that things are broke in.

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Jul 14, 2009 | 05:11 PM

#49

n8dc

Stellar HDF Member

Joined: Mar 2007

Posts: 2,034

Likes: 45

From: Michigan

I really wonder how some of you figure MPG.. I just dont believe a lot of the figures.. I guess ill just go with my 39/41 with the bike running great and not worry about it.. Im really surprised some of your bike just done seize up. they have to be running way hot at that MPG