Vapor Flow Fuel System
17481 Harris Ave.
Port Charlotte, Fl. 33948
NOTE : This system is Gen-1 and needs
improvement with safety devices ( valves, floats, metal
containers &c )
Car gets 400+ MPG
His car got 463 MPG and ran on fumes
John Weston stands next to his 1992 Geo Storm GSI, which is
equipped with his invention dubbed the Air Vapor Flow System. He
claims the car can run 14 miles on 4 ounces of fuel, which means
it runs with extreme fuel efficiency at more than 400 miles per
John Weston’s Air/Vapor Flow System, AVFS
-- Literally running on vapor!
John Weston’s 1992 Geo Storm: “Since I changed the fuel system
unit, it’s drastically different. I disconnected the fuel line
from the injector so no liquid goes to the engine,” said Weston.
Weston showed NBC-2 a version of his air vapor flow system where
instead of liquid fuel, only vapors go to the engine. [ "run your
car on vapors" ] “They used to say, ‘Hey I’m running on empty. I’m
running on fumes.’ Well, this is actually running on fumes,” he
said. Weston says the system burns cleaner and also made a bold
claim about fuel efficiency from a one-time test. “It came up to
463 miles a gallon if we had driven in the same manner – a
gallon,” said Weston.
“I drove from here to Fort Myers, and I’m up there keeping up with
traffic running 80 mph. ” Now, the backyard mechanic is looking
for investors so he can eventually take his invention public. In
the meantime, he says you might see his car on the highway.” He
also put his vaporizer on a generator, a riding lawnmower, and his
motorcycle. which are all so much more “fuel efficient” now!
By Ovidiu on July 17th, 2008 :
The NBC reporters were even taken on a test drive, where the
engine stumbled a little bit and John said he put too much vapor
on the pipe, so when he lowered the vapors, everything got back to
NBC-2 relates that John Weston is waiting for investors, because
he wants to sell his invention so the whole world benefits from
it. . . .
“I learned that when using the AVFS [Air & Vapor Flow System]
on my Geo Storm by using the standard 87 octane gasoline, then 89
octane, then used Coleman fuel(for lanterns), then charcoal
lighter fluid and even rubbing alcohol. On each of the different
fuels there was a different setting of the “air/vapor” mixture for
the engine to run smoothly. Not only at idle, but on acceleration
as well. I did NOT change timing or bypass any of the original
sensors that are factory installed on our vehicles now-a-days.” –
“Based on talks with actual engineers that work at Ford and GM,
these two companies have actively discouraged any improvements in
fuel efficiencies. Engineers would be threatened if they were
caught tinkering with the computer systems or searching for ways
to make the car engines run more efficiently.”
Maybe if enough people offered to pay him to install one on their
vehicle (boat? … around Port Charlotte) he could actually make
some money from it, and if there is a self-serve-garage
“rent-a-bay” in Port Charlotte you/he can rent for a few hours.
Under the hood of John’s extremely fuel
Notice the white container with about a half inch of gasoline in
the bottom and an extra pipe with a valve to allow him to adjust
the amount of extra air (to control the air/vapor mixture).
It can also be seen the the air filter was in the area now
occupied by his vapor system. Running without an air filter may be
o.k. for a while – certainly long enough to do a few test drives
and measure the rate of fuel consumption, but in the long run, an
air filter will be needed. (see our “Run Your Car On Vapors” page)
October 9, 2007
If John Weston of Port Charlotte can get investors to take his
gas-saving invention to the global automotive market, it just
might solve the problems of smog, global warming and the high cost
of foreign oil. It also might prove that human potential is not
limited by education or socioeconomic status.
Weston, 48, who dropped out of high school as a 10th-grader but
later achieved a GED, claims to have invented a device that can
turn virtually any car into a gas-miser that can run as far as 500
miles on a single gallon.
Called the Air Vapor Flow System, or AVFS, the device functions by
vaporizing gasoline before it gets inducted into the engine. That
saves fuel and reduces pollution because it allows the engine to
burn more of the fuel that gets sucked into the combustion
chamber, he contends. The device works on small, industrial
engines or larger automobile engines regardless of whether they
have carburetors or fuel injection systems, according to Weston.
Weston has been working to bring a prototype of the invention into
more advanced development since the late 1990s. After encountering
some financial difficulties in recent months, Weston is now
renewing efforts to find investors.
“My setback has always been financial,” Weston said. “That’s why
I’m totally open to sponsors, investors or purchasers.”
The device consists of a small, plastic tank that gets mounted
under the hood of a car. Some hoses from the engine’s air intake
housing are run to the top of the tank so that the engine draws in
vapors from above the level of the liquid gasoline.
In an impromptu demonstration conducted for this reporter last
week, Weston installed one of the devices into his battered 1992
Geo Storm. Weston’s car ran well on the vapors from the device
when the level of the liquid in the tank was within a certain
margin. The engine ran either too rich or too lean when the level
was above or below that margin. The car traveled 14.8 miles on
about 4 ounces of gasoline during the test. If accurate, that
would amount to about 473 miles per gallon.
Weston’s neighbor, retired construction contractor William “Pops”
Gavel, said he witnessed an even more dramatic experiment
conducted by Weston. Gavel said he rode as passenger in Weston’s
car for 28.7 miles — from Weston’s house to a location in
Englewood — on just 4 ounces of Coleman camping fuel, or white
gas. If accurate, that rate would be equivalent to 918 miles per
gallon. Gavel said he watched Weston pour the 4 ounces into the
tank and checked the mileage on the odometer himself.
“I couldn’t believe it,” said Gavel. “I said, ‘Wire me up!’ I’ve
got a Ford V-8 whacking down a gallon every 17 miles and I
thought, gee, I could drive all day with that kind of mileage.”
To operate the engine, once the fuel level dropped below its
optimal margin, Weston briefly triggered a home-made switch 15
times. That pumped in additional fuel from his car’s regular fuel
tank. The switch was made from a lamp cord. It was triggered by
pushing the two prongs of the plug together for a split second.
After the test,
Weston estimated the amount of gasoline consumed by measuring the
amount of gasoline that was added from his car’s regular fuel
tank. To do that, he again triggered the homemade switch 15 times,
this time pumping fuel into a measuring cup. The fuel measured 4
“Right now, it’s looking like a Mickey-Mouse backyard setup, but
regardless of the way it looks, it functions,” he said.
*** John Weston and his generator with his AVFS
Also yet to be perfected are ways to maintain the level of liquid
fuel in the vapor tank, and a way to adjust the mix of air and
vapor while driving.
Weston recently tested one of his AVFS tanks on a gasoline-powered
utility generator. Without the device, the generator ran for 3.5
hours. With the device, it ran for 14 hours on the same amount of
fuel, he said. [a 400% improvement]
School of hard knocks
Hailing from Connersville, Ind., Weston attended 23 schools in 10
grades before dropping out. He explained his father, a
construction worker, moved the family often, in both Indiana and
Florida. “I could not afford to take vehicles in to get repaired,”
he recalled. “I could afford only to buy a Chilton’s manual and
repair them myself.”
After working as a welder on oil rigs off Louisiana, he returned
to Indiana to care for his ailing mother.
The breakthrough came after Weston, who routinely smokes
cigarettes while working on his engines, needed to peer into the
gas tank of a lawn mower engine. It was dark in the tank.
“I didn’t have a flashlight at the time, so I used a lighter,” he
Suddenly, a blast of flame blew out of the tank. Weston
immediately realized the potential.
“I said, ‘Wow, let me try this,’” he said.
Weston grabbed a piece of tailpipe and stuck one into a carburetor
and the other into a five-gallon gas can. The engine ran for a few
moments on the vapors from the can, he said.
In 1996, a school teacher in his hometown invested $12,000 to help
Weston fashion a working prototype. The teacher, Edward Slaybaugh
of Connserville, Ind., said he considered the invention “the
greatest boon this century.” “I hope some good comes of it,”
Slaybaugh said Friday.
Reg Tech Inc.
In 1997, Weston sold the rights to his invention to Reg Tech Inc.
and its subsidiary, Regi U.S., of British Columbia, Canada.
Slaybaugh said he was compensated for his investment with Reg Tech
stock, which he still holds. The company is currently working to
develop a lightweight rotary engine.
Weston’s deal called for the two Canadian firms to pay him
$100,000 cash, $400,000 in stock, plus royalties. If the companies
never turned the device into a commercial product, the company
would still have to pay Weston $24,000 per year for 21 years under
The company had the AVFS tested on a small engine by the firm
Adiabatics Inc. in Columbus, Ind. The results showed it reduced
hydrocarbons 71 percent and carbon monoxide 25 percent. The rate
of fuel consumption was reduced by 15 percent to 30 percent. But
the device increased emissions of carbon dioxide 12 percent and
nitrogen oxides 296 percent. Those are greenhouse and smog
Weston said those emissions increased because Reg Tech’s engineer
failed to properly adjust the vapor/air mixture. “Not all
engineers are mechanics,” Weston said.
In 2002, Reg Tech relinquished the rights to the invention back to
John Robertson, Reg Tech president, said in a phone interview last
month the company’s patent attorney had advised the firm that
Weston’s invention was “unpatentable” because it was “not unique.”
Apparently, a similar system may have been used in race cars in
years past, Robertson said.
The company dropped the invention because it would have been
unwise to invest in it without the protection of a patent,
“It runs, but somebody’s got to have a sophisticated testing
apparatus to develop it,” he added.
A riding lawnmower running on vapor
John’s riding lawnmower running very very efficiently on vapor –
notice, again, that the 1 small bottle produces too much vapor and
he has to dilute it by joining a second pipe of air into the
mixture (white with a red valve). See a smaller bottle of fumes
powering his – very fuel efficient – motorcycle, below.
“The automotive industry has made strides in the past 10 years to
make cars that produce less of such smog gases as hydrocarbons,
carbon monoxide and nitrogen oxides, said Jim Kliesch, senior
analyst for clean vehicles at the Union of Concerned Scientists.
[no, they have fought long and hard, in the courts and in
Washington, against making any improvements!]
If a vaporization device such as Weston’s improved mileage to the
levels that Weston claims, that would reduce gases contributing to
global warming, said Kliesch. [an open recognition that Reg Tech's
testing through Adiabatics must have been flawed when claiming an
increase in carbon dioxide and nitrogen]
“It sounds intriguing,” added John Cabaniss, director of
environment and energy issues for the Association of International
December 2007 :
My name is John Weston, the inventor of a fuel system called the
Air/Vapor Flow System, referred to as AVFS, and would like to
present this to everyone who is into automotive, energy saving
systems, environment and new ideas that are a benefit to our
society. Not to mention our economy, since the AVFS has been
proven to get 14.8 miles on 4oz of 87octane gasoline, witnessed by
Mr. Greg Martin, a reporter for the Charlotte Sun-Herald of Port
I developed the AVFS to operate an engine on the gasoline vapors
which eliminates liquid gasoline from going to the engine. This
does away with any unburned fuel in the exhaust (meaning no need
for the EGR system) and reduces the emissions by up to 70% and
possibly even more now (since I am doing further R&D).
With the reporter riding along with me when he was doing the story
on the AVFS in the local news paper, we were able to drive 14.8
miles on 4 oz. of liquid gasoline going to the AVFS tank that I
had developed and adapted to the 1992 GEO Storm GSI, using the
simple materials I was able to afford at the time, being some pvc
tubing and fittings, some electrical conduit tubing and a plastic
tank that was actually manufactured to be a tank for windshield
washer fluid. That added up to be about 460 miles of driving if we
had gone through a gallon of gasoline during the ride for proving
that the AVFS does actually work and was being witnessed by the
reporter so he would be able to be honestly writing a true story.
My reason, hopes and desires for presenting the AVFS in this
manner is that perhaps someone would be willing to either come
here or have me brought to his/her facility or business,
regardless of small or large selection of automobiles or equipment
operated by gasoline engines, and give someone the opportunity to
see it function in person, on any vehicle chosen to have the AVFS
adapted to, the aspects of the AVFS and perhaps present it or
assist financially as a means of helping get the AVFS in use for
the sake of our environment, economy, energy savings and ability
to stop buying so much oil from out of our country....
I did file a patent registration on it before presenting it to
others. Plus, being a certified paralegal helped to put together
several other AGREEMENTS that are signed before others are shown
the whole working of the AVFS. I am hoping this will reach some
people who will be able and interested in sponsoring or investing
Hate to say, but am at a financial stand still currently and open
for sponsorship(s) from $10.00 and up. Even small amounts help in
July 17, 2008
Charlotte County Man Claims to Get 463
MPG with Car Running on Fuel Vapors
by Ovidiu Sandru
Have your ever run your car on “fumes”? They’re gas vapors that
form when it evaporates. One man, John Weston, from Charlotte
County, FL, has found these fumes useful and made a fueling system
out of them so his car gets an incredible mileage: 463 miles per
gallon! In European measurements (if I’m correct) this is
Not even VW’s latest gadget car can’t get this mileage!
John has found by trial and error the method to get the fuel
vapors “inhaled” by the engine. He cut the fuel injector lines in
his 1992 Geo Storm and adapted the whole thing to run on fuel
In an interview he gave to NBC-2, John Weston states: “It came up
to 463 miles a gallon if we had driven in the same manner – a
gallon. I drove from here to Fort Myers, and I’m up there keeping
up with traffic running 80 mph.” The NBC reporters were even took
to a test drive, where the engine stumbled a little bit and John
said he put too much vapor on the pipe, so when he lowered the
vapors, everything got back to normal.
Some mechanics say that disconnecting the fuel lines and not
feeding the engine with regular liquid fuel will eventually ruin
it. It may be so, but precautions can be taken and proper oiling
can be made so the engine is well-lubricated. The same thing
applies to natural gas-converted cars, and they run smoothly
forever (it’s only gas, not oil). I don’t know much about
mechanics, but if you find a system that gets you 463mpg, you’re
also smart enough to find a proper lubrication system.
NBC-2 relates that John Weston is waiting for investors, because
he wants to sell his invention so the whole world benefits from
it. I keep thinking about hoaxes in the energy industry. Some
solutions are too simple and too mainstream-published to be
hoaxes. There are also law prosecutions for that matter. I don’t
know. It remains to be seen. In the meanwhile, it’s a great idea
having this mileage. If that car can run on nothing else but
gasoline vapors, an idea pops into my mind: why wouldn’t a car run
on hydrogen, for instance? Skeptics say you need a lot of hydrogen
(much more than you can obviously produce on-demand). Is it true
you do need that much?
A complaint :
John Weston what do you think? A story always has two sides.
You have now a chance to explain your self.
The short version of my story is that the AVFS, can not and will
not work. I send it back to you as agreed. You have not paid me.
It was delivered the 19. of August. Your promise that it would
work was false. What you where good at was fooling me.
I will of course not give a short testimonial on the website. I
will have all of our emails and all my videos, and all my
explanations why the AVFS can not work.
Where I come from, Norway, Scammers get locked up.
John Arne Loken
Date: Nov 4, 2015 7:07 AM
I think it is a really great idea... For just as you read what
Robert has told you in his email; that just twenty feet away from
him are two engines running on vapor to his great delight. He also
went on to tell you that there are things that do make a
difference in the adjustment of the air/vapor mixture valve-----
things I told you all along. As well as stating ; "do not heat the
bubbler or the fuel". The ambient air under the hood of a vehicle
prevents the unit from becoming too cold to operate; as mentioned
by Robert in stating that the problem occurs when the fuel within
the unit gets too cold for proper vapor being provided. Robert is
telling you the same things that I told you from the beginning of
our conversation about the AVFS. I repeatedly told you that there
are many variances when adapting to a vehicle and that specific
steps must be adhered to. You, on the other hand have many
different connections and apparatus under the hood of your
vehicle---- the "octopus", different ignition system and other
components. These things made it more difficult to determine the
reason you were experiencing the difficulties.
Another mention of being able to assemble correctly was made by
Robert concerning a different system, which goes right along with
me telling you repeatedly that we must follow each and every step
installation in order to achieve the results we are expecting. You
told me in an email (of which I,too, have kept each and every one
of) that you bypassed something on more than one occasion during
In all regards and with all due respect, I do not have any problem
with you going cyber ----as you called it---- about the AVFS and
the problem(s) you found to have when the specific steps of the
installation took place. That will help others to know that
different systems do require specific instructions to be followed
when doing it yourself installations of things are conducted.
Have a great day...... -- John Weston
I bought a fuel vaporizer from you for $ 2000! For that price I
was promised that it would work. I am not doing research for
you. Do you remember the pictures of the gasoline turning
dark red after the light fumes in the gas has evaporated? That is
why the AVFS can not and will not work. The AVFS is just a cold
bubbeler. NOTHING MORE. We all should know that the only way
to vaporize fuel is to crack it. That is done by spraying fuel on
to a 900f heated element.
I was an idiot and trusted John Weston.
Would it not be a lot better for you to just pay me back the
money? How can a very unhappy customer be good for your future
business? Why not just log on to Paypal right now? Just pay me and
move on. ... -- JA
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