Fuel Range Question
Thread Starter
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Joined: Sep 2019
Posts: 79
Likes: 13
From: Blacksburg SC
Running 55 miles one way, all but about 9 miles on interstate. It's been bugging me a while, just finally frustrated enough to ask for thoughts here. I've run cruise on, cruise off, 70mph, 65, 75...makes no difference. Literally night and day are different. Used to be able to make 2 round trips on a tank, now I'd be pushing the thing the last 10 miles the second day easily. If anything, the daytime rides should be worse due to traffic vs smooth riding home at night. Just perplexed and looking for ideas.
Thanks!
Thanks!
Banned
Joined: Aug 2021
Posts: 4,027
Likes: 6,286
From: SoCal
I've owned this '07 for about 4 1/2 years.
I bought it in Vegas and rode it to SoCal, & I was amazed that the fuel economy was so low.
I didn't really do anything but complain about it until last week when I finally took the bike in for a dyno tune.
I was getting MAYBE 27MPG before, and after the tune I'm now getting 33MPG.
It has smoother throttle response, more pull through all gears, and is generally speaking, more fun to ride.
While my situation isn't not be the same as yours, consider the tune; it may restore your MPG.
I bought it in Vegas and rode it to SoCal, & I was amazed that the fuel economy was so low.
I didn't really do anything but complain about it until last week when I finally took the bike in for a dyno tune.
I was getting MAYBE 27MPG before, and after the tune I'm now getting 33MPG.
It has smoother throttle response, more pull through all gears, and is generally speaking, more fun to ride.
While my situation isn't not be the same as yours, consider the tune; it may restore your MPG.
Seasoned HDF Member
Joined: Mar 2021
Posts: 18,252
Likes: 3,679
From: backwoods
Some day when you got the time, gas up after one trip, so you can compare. 55 is a long run to average out, and I get after work just want to go home.
If I understand you, same route, only difference is day or night. I knew an old mechanic who said he would adjust his timing and could get away with it at night to avoid detonation, for hot rodding. But I can't imagine that big of difference on stock bike. Interesting though.
I bought my 2007 new, and still have it. Something is wrong with your bike. And still is.
If I understand you, same route, only difference is day or night. I knew an old mechanic who said he would adjust his timing and could get away with it at night to avoid detonation, for hot rodding. But I can't imagine that big of difference on stock bike. Interesting though.
I've owned this '07 for about 4 1/2 years.
I bought it in Vegas and rode it to SoCal, & I was amazed that the fuel economy was so low.
I didn't really do anything but complain about it until last week when I finally took the bike in for a dyno tune.
I was getting MAYBE 27MPG before, and after the tune I'm now getting 33MPG.
It has smoother throttle response, more pull through all gears, and is generally speaking, more fun to ride.
While my situation isn't not be the same as yours, consider the tune; it may restore your MPG.
I bought it in Vegas and rode it to SoCal, & I was amazed that the fuel economy was so low.
I didn't really do anything but complain about it until last week when I finally took the bike in for a dyno tune.
I was getting MAYBE 27MPG before, and after the tune I'm now getting 33MPG.
It has smoother throttle response, more pull through all gears, and is generally speaking, more fun to ride.
While my situation isn't not be the same as yours, consider the tune; it may restore your MPG.
Thread Starter
|
Advanced
Joined: Sep 2019
Posts: 79
Likes: 13
From: Blacksburg SC
I've owned this '07 for about 4 1/2 years.
I bought it in Vegas and rode it to SoCal, & I was amazed that the fuel economy was so low.
I didn't really do anything but complain about it until last week when I finally took the bike in for a dyno tune.
I was getting MAYBE 27MPG before, and after the tune I'm now getting 33MPG.
It has smoother throttle response, more pull through all gears, and is generally speaking, more fun to ride.
While my situation isn't not be the same as yours, consider the tune; it may restore your MPG.
I bought it in Vegas and rode it to SoCal, & I was amazed that the fuel economy was so low.
I didn't really do anything but complain about it until last week when I finally took the bike in for a dyno tune.
I was getting MAYBE 27MPG before, and after the tune I'm now getting 33MPG.
It has smoother throttle response, more pull through all gears, and is generally speaking, more fun to ride.
While my situation isn't not be the same as yours, consider the tune; it may restore your MPG.
Some day when you got the time, gas up after one trip, so you can compare. 55 is a long run to average out, and I get after work just want to go home.
If I understand you, same route, only difference is day or night. I knew an old mechanic who said he would adjust his timing and could get away with it at night to avoid detonation, for hot rodding. But I can't imagine that big of difference on stock bike. Interesting though.
I bought my 2007 new, and still have it. Something is wrong with your bike. And still is.
If I understand you, same route, only difference is day or night. I knew an old mechanic who said he would adjust his timing and could get away with it at night to avoid detonation, for hot rodding. But I can't imagine that big of difference on stock bike. Interesting though.
I bought my 2007 new, and still have it. Something is wrong with your bike. And still is.
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,064
Likes: 1,003
get a list of top tier gasoline suppliers off the net. my honda makes about 4 mpg more over murphy/walmart fuels that are 10>15 cents cheaper, and it is cheaper than buying fuel additives. on my tow truck, makes a 2 mpg diff.
i do not think that hd ecu logs miss fire data but for every miss fire there is a loss. that said, NO cylinder fires 100% every time and you cannot always tell the miss fire is there.
i would do the mechanical tests first like compression and leak down and if good, have the ignition tested on an o-scope, the wave signature tells all.
i do not think that hd ecu logs miss fire data but for every miss fire there is a loss. that said, NO cylinder fires 100% every time and you cannot always tell the miss fire is there.
i would do the mechanical tests first like compression and leak down and if good, have the ignition tested on an o-scope, the wave signature tells all.
Thread Starter
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Advanced
Joined: Sep 2019
Posts: 79
Likes: 13
From: Blacksburg SC
get a list of top tier gasoline suppliers off the net. my honda makes about 4 mpg more over murphy/walmart fuels that are 10>15 cents cheaper, and it is cheaper than buying fuel additives. on my tow truck, makes a 2 mpg diff.
i do not think that hd ecu logs miss fire data but for every miss fire there is a loss. that said, NO cylinder fires 100% every time and you cannot always tell the miss fire is there.
i would do the mechanical tests first like compression and leak down and if good, have the ignition tested on an o-scope, the wave signature tells all.
i do not think that hd ecu logs miss fire data but for every miss fire there is a loss. that said, NO cylinder fires 100% every time and you cannot always tell the miss fire is there.
i would do the mechanical tests first like compression and leak down and if good, have the ignition tested on an o-scope, the wave signature tells all.
Road Master
Joined: Mar 2007
Posts: 872
Likes: 237
From: Covington, Ga
Running 55 miles one way, all but about 9 miles on interstate. It's been bugging me a while, just finally frustrated enough to ask for thoughts here. I've run cruise on, cruise off, 70mph, 65, 75...makes no difference. Literally night and day are different. Used to be able to make 2 round trips on a tank, now I'd be pushing the thing the last 10 miles the second day easily. If anything, the daytime rides should be worse due to traffic vs smooth riding home at night. Just perplexed and looking for ideas.
Thanks!
Thanks!
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Seasoned HDF Member
Joined: Sep 2020
Posts: 8,140
Likes: 9,545
From: central NC
I’ve had three M-8 touring bikes in the past four years. The range on my latest 2024 FLHP is 40-80 miles less than my 2022 Road Glide or 2020 Street Glide. And I had added a tour pack, and more chrome to both of those.
Maybe the 2024 cop bike has a richer tune, who knows.
Maybe the 2024 cop bike has a richer tune, who knows.
Thread Starter
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Advanced
Joined: Sep 2019
Posts: 79
Likes: 13
From: Blacksburg SC
Ive had three M-8 touring bikes in the past four years. The range on my latest 2024 FLHP is 40-80 miles less than my 2022 Road Glide or 2020 Street Glide. And I had added a tour pack, and more chrome to both of those.
Maybe the 2024 cop bike has a richer tune, who knows.
Maybe the 2024 cop bike has a richer tune, who knows.
On a sidenote @gonemad, I've actually kept up with Hulkss thread on the FLHP and love what y'all are doing with the bikes!