Regular Gasoline
Seasoned HDF Member
Joined: Feb 2010
Posts: 5,294
Likes: 149
From: FL
Waste of money is the biggest thing you'll notice.
Road Warrior
Joined: May 2010
Posts: 1,593
Likes: 11
From: Mass/NH
My dealer has these little hard plastic bottles of octane boost for emergencies. They won't leak and you can throw a couple in the bottom of your bag for emergencies. They are in a big jar at the parts counter. A buck a piece.
Elite HDF Member
Joined: Apr 2007
Posts: 4,984
Likes: 8
unless it is hot outside, it does not make that much of a difference. If you don't notice any pinging, don't worry about it.
Seasoned HDF Member
Joined: Nov 2009
Posts: 15,706
Likes: 22,739
From: Farmington ,MS
If you travel in out of the way places...you will find many smaller stations only have regular...use it or walk...not a problem at all on a stock compression bike. One other thing people hell bent on using premium should consider...99% of all people buying gas are buying regular...so if you get premium, it may have been sitting there for months...stale and water contaminated...every bike I see with a "bad gas" problem is a new tank of premium...and unless you bike is borderline not steetable...100 octane is a total waste of money.
Extreme HDF Member
Joined: Dec 2007
Posts: 13,402
Likes: 941
From: Illinois
I run my TC88,96's, 103 and 110 on 87 octane with no issues at all.
All have oil coolers and programmers that run 12.8 : 1 AFR.
Strong acceleration, cool running and NO pinging. I have done this for years and over most of the North American Continent. Over many mountain ranges through Death Valley in the summer afternoon and desert S.W.
The government has required all vehicle manufacturers to have engines that run on 87 octane for many years. That is why in the owners manual HD can only use the word "recommend" and not requires when advising about octane.
All get about 50 mpg even the CVO.
A Corvette engineer at a tuning seminar told the attendees that unless they were on the drag strip or a track there was no need for anything but 87 octane. I smiled because that was what I was using in my Vettes and Viper.
At 5,000 ft in elevation I run 85 octane. Sturgis is 6,000 ft on average in the Black Hills.
All have oil coolers and programmers that run 12.8 : 1 AFR.
Strong acceleration, cool running and NO pinging. I have done this for years and over most of the North American Continent. Over many mountain ranges through Death Valley in the summer afternoon and desert S.W.
The government has required all vehicle manufacturers to have engines that run on 87 octane for many years. That is why in the owners manual HD can only use the word "recommend" and not requires when advising about octane.
All get about 50 mpg even the CVO.
A Corvette engineer at a tuning seminar told the attendees that unless they were on the drag strip or a track there was no need for anything but 87 octane. I smiled because that was what I was using in my Vettes and Viper.
At 5,000 ft in elevation I run 85 octane. Sturgis is 6,000 ft on average in the Black Hills.
Last edited by lh4x4; May 14, 2013 at 10:38 PM.
Elite HDF Member
Joined: Apr 2007
Posts: 3,766
Likes: 16
From: Roseville, CA
I run my TC88,96's, 103 and 110 on 87 octane with no issues at all.
All have oil coolers and programmers that run 12.8 : 1 AFR.
Strong acceleration, cool running and NO pinging. I have done this for years and over most of the North American Continent. Over many mountain ranges through Death Valley in the summer afternoon and desert S.W.
The government has required all vehicle manufacturers to have engines that run on 87 octane for many years. That is why in the owners manual HD can only use the word "recommend" and not requires when advising about octane.
All get about 50 mpg even the CVO.
A Corvette engineer at a tuning seminar told the attendees that unless they were on the drag strip or a track there was no need for anything but 87 octane. I smiled because that was what I was using in my Vettes and Viper.
At 5,000 ft in elevation I run 85 octane. Sturgis is 6,000 ft on average in the Black Hills.
All have oil coolers and programmers that run 12.8 : 1 AFR.
Strong acceleration, cool running and NO pinging. I have done this for years and over most of the North American Continent. Over many mountain ranges through Death Valley in the summer afternoon and desert S.W.
The government has required all vehicle manufacturers to have engines that run on 87 octane for many years. That is why in the owners manual HD can only use the word "recommend" and not requires when advising about octane.
All get about 50 mpg even the CVO.
A Corvette engineer at a tuning seminar told the attendees that unless they were on the drag strip or a track there was no need for anything but 87 octane. I smiled because that was what I was using in my Vettes and Viper.
At 5,000 ft in elevation I run 85 octane. Sturgis is 6,000 ft on average in the Black Hills.
Also some some forced induction cars won't run on 87 and, at least in the past, shut down. Putting 87oct in a modern 12:1 high compression motor is not a good idea at all.
You'll see less peak horsepower and iirc, less mpg.
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