Menu
What's new
By:
Filters

GAMI begins sales of G100UL unleaded fuel STCs

The implication is that the EAGLE program has become a form of regulatory capture, rent seeking, and boondoggle for endless government funded research into unleaded fuel, while protecting the availability of 100LL more or less indefinitely as they milk the process.

This implication seems plausible but I haven't followed it closely enough to form a strong opinion.

PS: the contrary implication is that the GAMI folks are bunch of cowboys who want to roll out their fuel without sufficient testing, nor proper coordination with engine & airplane manufacturers. Pass the risks onto their pilot customers while they pocket their license and STC fees.
 
Last edited:
I tend to agree with the former. But I'm a sucker for stories of government graft and greed.

From the article:
Refiner Vitol Aviation has 1.3 million gallons of G100UL in tanks in Louisiana and says it has been completed vetted as ready for sale through its STC.
Click to expand...

How many STCs has GAMI sold and where is G100UL commercially available?
 
Domenick said:
I tend to agree with the former. But I'm a sucker for stories of government graft and greed.

From the article:

How many STCs has GAMI sold and where is G100UL commercially available?
Click to expand...
Your quote from the article said it is "ready" for sale. Not that it IS for sale.
Vitol is ready to sell it. All they need is someone to buy it for distribution.
 
www.avweb.com

EAGLE Issues Post-Forum Statement On Fuel Progress - AVweb

The End Aviation Gasoline Lead Emissions (EAGLE) group has issued a statement (copied in full below) summarizing its take on the forum it held Monday at AirVenture, stressing the need to preserve access to 100LL while a new unleaded replacement is developed. It also reiterated its stand that an...
www.avweb.com www.avweb.com
 
Aeromot said:
www.avweb.com

Stains On AOPA Baron Wing To Be Checked By Mechanic

AOPA says it left its dual-fuel Beech Baron behind in Oshkosh so mechanics can trace the source of some stains that were discovered under the left wing while it was...
www.avweb.com www.avweb.com
Click to expand...
It was just a leaking bladder, which is less serious on an airplane than on a pilot.

www.avweb.com

AOPA Baron Wing Stain Traced To Leaking Bladder Patch - AVweb

General Aviation Modifications Inc. (GAMI) says the gunk that smeared the underside of the left wing of the AOPA Beech Baron fuel test bed aircraft at AirVenture originated with a leaky patch in the 50-year-old bladder in the tank. In a report prepared by GAMI, the company said the mechanics who...
www.avweb.com www.avweb.com
 
The more I hear from George Braly the more I like him. A while back I too was hung up on the ASTM "certification" until I learned it is no such thing. When G100UL comes to WA state, I'll be purchasing the STC if still required.
 
Domenick said:
The more I hear from George Braly the more I like him. A while back I too was hung up on the ASTM "certification" until I learned it is no such thing. When G100UL comes to WA state, I'll be purchasing the STC if still required.
Click to expand...

I don't really care one way or the other if the STC is still required. That's the club's problem.
 
I was told on Saturday, 09/07/24, and was shown photographs, of how GAMI 100UL literally eats away paint exactly like paint stripper. Cirrus won't allow its use in its planes. FBOs are refusing to carry it. It may eat through rubber fuel bladders.
Whatever increases the octane is highly corrosive.
GAMI apparently isn't the answer to the unleaded predicament that we were all hoping.
Maybe Swift can come up with a 100 octane solution.
 
Markv said:
I was told on Saturday, 09/07/24, and was shown photographs, of how GAMI 100UL literally eats away paint exactly like paint stripper. Cirrus won't allow its use in its planes. FBOs are refusing to carry it. It may eat through rubber fuel bladders.
Whatever increases the octane is highly corrosive.
GAMI apparently isn't the answer to the unleaded predicament that we were all hoping.
Maybe Swift can come up with a 100 octane solution.
Click to expand...
That's so contrary to what I'd expect after such extensive testing, and such a serious charge, that I want to see some rigorously done documentation from at least one credible source before leaping to any conclusions.

Roy
 
Group W said:
That's so contrary to what I'd expect after such extensive testing, and such a serious charge, that I want to see some rigorously done documentation from at least one credible source before leaping to any conclusions.

Roy
Click to expand...
It's also not true of G100UL.
It was true of the Shell product.
 
From GAMI's FAQ
g100ul.com

G100UL

Find out more about GAMI's G100UL® high octane unleaded aviation gasoline.
g100ul.com g100ul.com

G9
I have heard rumors about problems with other ( PAFI / EAGLE) candidate unleaded fuels including cold weather starting problems, paint stripping from spillage at the filler for the gas tank, and metal additives that fouls spark plugs. Has GAMI addressed and avoided all of those issues?​

Yes. Successful cold weather operational starting and extensive flight-testing has been conducted, including by an FAA test pilot, all with no difficulties. The “paint stripping” you may have heard about was unique to some particular components in an earlier PAFI fuel formulation that had nothing to do with G100UL avgas. G100UL avgas has demonstrated no evidence of causing any break down of paint on aircraft surfaces. However, if you spill fuel on a painted surface, it should be promptly wiped up with a clean rag, to avoid staining over time.

Further, at GAMI’s request, ERAU, as a 3rd party, completed a highly successful 150 hour engine durability test conducted on an engine that already had 1400+ hours of operation on 100LL. The post-test engine teardown demonstrated the engine and combustion chambers were noticeably cleaner at the end of that 150 hours operating on G100UL avgas than before the test started. That testing at ERAU was closely monitored by the FAA with personnel out of the Atlanta Aircraft Certification Office.
 
Markv said:
I was told on Saturday, 09/07/24, and was shown photographs, of how GAMI 100UL literally eats away paint exactly like paint stripper. Cirrus won't allow its use in its planes. FBOs are refusing to carry it. It may eat through rubber fuel bladders.
Whatever increases the octane is highly corrosive.
GAMI apparently isn't the answer to the unleaded predicament that we were all hoping.
Maybe Swift can come up with a 100 octane solution.
Click to expand...
Source for these statements?
 
StraightnLevel said:
Source for these statements?
Click to expand...
I saw a photograph that showed spilled GAMI 100UL fuel that removed paint like paint stripper. There's other anecdotal information out there..
An FBO at a local airport (I will refrain from naming) has been doing it's best to make money selling Swift UL94 (many issues with getting steady supply and also low profits, but that's another matter). This FBO refuses to carry GAMI.
Here's the link to an article saying how Cirrus won't honor warranties if owners use GAMI 100UL:
www.aopa.org

Cirrus: G100UL use may void warranties

Cirrus Aircraft advised owners on June 19 that the use of unleaded fuel in its top-selling SR-series piston airplanes may void the warranty.
www.aopa.org
I'm just saying what I've been hearing. Don't take my word for it. Check around.
 
You must log in or register to reply here.
Top Bottom