General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

Fuel Additives?

Thread Tools
 
Search this Thread
 
Old Sep 12, 2010 | 03:29 PM
  #1  
hoethree's Avatar
hoethree
Thread Starter
|
Elite HDF Member
Joined: Apr 2009
Posts: 3,780
Likes: 69
From: Al Bu Ker Key, New Mexico
Default Fuel Additives?

Living in the desert southwest and at high altitude (5000 ft) and having to do with low octane premium fuels (90 octane) for the most part, I have been experiencing a lot of pinging and low milage per gallon. I decided to give the fuel additive witchcraft products a try. Dealer Parts guys sell me on trying the Fitch Fuel Catalyst. This is a one-time application supposedly good for 250,000 miles. You drop two of these little "fuel cells" in your tank and off you go. Supposed to improve fuel milage, eleminate pinging and carbon buildup and acts as a fuel stablizer. Also claims to improve horsepower and torque. These little gizmos look like metal tablets encased in a plastic tampon. At $47 I was skeptical but anxious to try anything. I have 10K miles on a bone-stock 2010 Streetglide. Dropped these little jewels in a fresh tank of gas and rode 100 miles. No pinging! Bike felt more responsive at all speeds and all gears! Anyone else try this product? Would be interested in your results and opinions. And, no I dont want to buy a choice property in Florida.

thanks!
 
Old Sep 12, 2010 | 03:39 PM
  #2  
louisianaSVT2001's Avatar
louisianaSVT2001
Road Master
Joined: Jan 2010
Posts: 821
Likes: 0
From: Evangeline Parish Louisiana
Default

Ive seen several ads for these catalyst type products but been very skeptical. So you have noticed a real difference?
 
Old Sep 12, 2010 | 03:46 PM
  #3  
lh4x4's Avatar
lh4x4
Extreme HDF Member
Joined: Dec 2007
Posts: 13,402
Likes: 941
From: Illinois
Default

At higher altitudes the engine will run better on "LOWER" octane. Higher octane does not have enough air for complete combustion. That is why they have lower octane available.

My 07 Softail and 010 Ultra ran just fine on 85 in the mountains. No pinging at all. In the midwest and south, I only run 89. Better starting and smoother running. Just be sure that you are not lugging the motor.
 
Old Sep 12, 2010 | 04:52 PM
  #4  
ynots's Avatar
ynots
Ultimate HDF Member
Joined: Apr 2010
Posts: 7,138
Likes: 26
From: Southern Oregon
Default

i tried them until they blocked my gas line and left me stranded in the middle of nowhere...
Ha.... j/k, had ya going didnt I
 
Old Sep 12, 2010 | 04:56 PM
  #5  
louisianaSVT2001's Avatar
louisianaSVT2001
Road Master
Joined: Jan 2010
Posts: 821
Likes: 0
From: Evangeline Parish Louisiana
Default

Look anything like this?
 
Attached Thumbnails Fuel Additives?-375-small.jpg  
Old Sep 12, 2010 | 04:59 PM
  #6  
32vld's Avatar
32vld
Road Master
Joined: Feb 2010
Posts: 1,210
Likes: 1
From: LI, NY
Default

Originally Posted by lh4x4
At higher altitudes the engine will run better on "LOWER" octane. Higher octane does not have enough air for complete combustion. That is why they have lower octane available.

My 07 Softail and 010 Ultra ran just fine on 85 in the mountains. No pinging at all. In the midwest and south, I only run 89. Better starting and smoother running. Just be sure that you are not lugging the motor.

Aviation gas is higher octane then regular gas. If engines run better on low octane at high elevations then you know something the aviation industry does not.
 
Old Sep 12, 2010 | 04:59 PM
  #7  
MikeyTX's Avatar
MikeyTX
Outstanding HDF Member
Veteran: Marine Corps
Joined: May 2007
Posts: 2,921
Likes: 199
From: Skunk Hollow, TX
Default

Originally Posted by ynots
i tried them until they blocked my gas line and left me stranded in the middle of nowhere...
Ha.... j/k, had ya going didnt I
See ............ See ........ If ya wouldn't ah drunk the water out of Crater Lake, ya wouldn't be stopping ta pee so often !
 
Old Sep 12, 2010 | 05:10 PM
  #8  
louisianaSVT2001's Avatar
louisianaSVT2001
Road Master
Joined: Jan 2010
Posts: 821
Likes: 0
From: Evangeline Parish Louisiana
Default

Originally Posted by 32vld
Aviation gas is higher octane then regular gas. If engines run better on low octane at high elevations then you know something the aviation industry does not.
Some Aviation fuel is higher in octane because the Aircraft is typically flying through the air and getting a MUCH higher intake manifold pressure (Ram Air) thus requiring a higher octane. If your vehicle would be experiencing this pressurized intake manifold air it also requires Higher octane fuel like premium. This is why supercharged and turbocharged engines require premium.
 

Last edited by louisianaSVT2001; Sep 12, 2010 at 05:18 PM.
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Sep 12, 2010 | 05:27 PM
  #9  
sqdealgeorge's Avatar
sqdealgeorge
Road Warrior
Joined: Dec 2007
Posts: 1,854
Likes: 20
From: Eagle River WI
Default

Can you say ROCKET FUEL It works
 
Old Sep 12, 2010 | 05:58 PM
  #10  
xxxflhrci's Avatar
xxxflhrci
Extreme HDF Member
Joined: Sep 2006
Posts: 10,033
Likes: 29
Default

Save you money on magic bullets or any liquid elixer that is supposed to raise octane....If a bottle of boosting product says it boosts your octane 5 points, that means it raises your 87 gas to 87.5, not 92.
 



All times are GMT -5. The time now is 02:11 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE