Date: Sun Jul 6 20:42:04 2008
Sender: Bill Howard
I installed a hydrogen generator unit on one of our technician's volkswagan
passat. Before hand, he was getting 31 mpg. After 2 tankfulls we were running
30 mpg. A loss of a mpg. After doing some research, we relocated out vacuum
port (before the turbo instead of after it) and he reported to me Friday that
after filling up, he calculated his gas mileage at 38.4 mpg.
So far that was my only bad experience, so I was glad to see it change to such
a positive increase.
We have 5 units testing, and so far we are averaging around 24% increase
between the 5 vehicles.
Date: Mon Jul 7 09:15:42 2008
Sender: AJ Perko
In your opinion,
how much mileage can be saved on the average car on the road by just proper
maintenance?
What I'm asking is- if you offered that kit in conjunction with a "gas saver
tune up" - do you think you could get to 33%?
Date: Mon Jul 7 10:05:53 2008
Sender: Bill Howard
it depends on how well the person kept the vehicle anyway. For instance, it is
said using Nitrogen in your tires can save you as much as 10% on gas mileage.
But the reason it can is the average person doesn't check their tires
regularly. Nitrogen is nothing magical, but it does keep a more consistent
pressure and doesnt leak out as fast. So the average person could save 10% on
gas mileage if he is running with his tires underinflated about 5 lbs each.
But someone that checks their tires every week, will not see any benefit from
nitrogen.
Date: Mon Jul 7 16:42:13 2008
Sender: AJ Perko
"So the average person could save 10% on gas mileage if he is running with his
tires underinflated about 5 lbs each."
seriously?
Date: Mon Jul 7 22:10:30 2008
Sender: William Johnson
I think he means that if you 'have' your tires 5 lbs underinflated, then
inflating them to proper levels you would save that amount. Overinflate by 2-4
lbs will save some also, but I wouldn't want to stretch that limit if safety is
compromised.
Otherwise, you will never get as good of milage as you do when it is brand
new. You can come close but there is always some amount of wear. The best thing
to do is use a fuel injector cleaner regularily in your fuel system and replace
(or clean) your air filter. Also, clean the gunk from the throttle plate every
month or so. Plugs are designed to last 80-100K now adays.
Date: Tue Jul 8 19:23:15 2008
Sender: Bill Howard
Oops. Didn't proofread. It sounded different im my mind when typing than it
does reading back over it.
William understood correctly. If you consistently ride around with
underinflated tires, average of 5psi, and then switch to Nitrogen and the tires
are inflated properly, you could see a difference in gas mileage.
Same way with oil changes. I always hear from customers that their car just
feels different after we change the oil. It has nothing to do with the oil or
filter. It has to do with the fact we set the pressures properly on their
tires that haven't been checked in the last 3-6 months.
Biggest effects on fuel mileage based on service.
Tire inflation
Air filter
Throttle body
Fuel injectors
Fuel filter
If it ever feels like your vehicle either bogs down, or tries to take off hard
and idles high, it's usually the throttle body gummed up. Most service dept
charge anywhere from $35 to $60 to clean it and takes only a few minutes.
Date: Thu Jul 10 05:56:05 2008
Sender: Brian Dust
This link is for a Q&A about filling to proper tires, and the supposed merits
of using nitrogen:
http://www.globeauto.com/servlet/story/RTGAM.20080709.whYourCar0710/GAStory/specialGlobeAuto/home
Our
resident auto experts (or psychics) are insightful, but I thought some may
enjoy this more elaborate reponse on the subject.
Date: Thu Jul 10 05:58:27 2008
Sender: Brian Dust
In addition to the service items Bill posted that can contribute to improved
mileage, this link makes a case for the benefits of improving transmission
technology:
http://www.globeauto.com/servlet/story/RTGAM.20080709.whHowitWorksTrans0710/GAStory/specialGlobeAuto/home
Date: Thu Jul 10 15:28:31 2008
Sender: Doc Barnes
Maybe I'm full of crap but you guys can tell me for sure.
A number of years ago I had a Saturn that got around 36 mpg. I installed a K&N
filter (a 'performance' air filter that lasts 100,000 miles, and can be found
at most auto parts stores) and started seeing about 38 mpg. Then I went an
extra step and removed the hose that vents air from my crankcase into my
intake, capped the valve where the hose went in to the intake, and placed a
filter on the valve coming out of the crankcase. After that I swear I was
seeing around 41-42 mpg. Now this was mostly highway driving and I was also
using fuel injector cleaner pretty regularly. Does this sound right to you
guys?
Date: Thu Jul 10 19:27:24 2008
Sender: William Johnson
" After that I swear I was seeing around 41-42 mpg. "
Milage is easy to accurately measure. All you have to do is fill the tank 2
times in a row.
I'm not sure I'd recommend removing that hose. I'm sure it is designed to
prevent excess pressure build-up in the engine oiling system. After doing that,
did you develop any oil leaks? Otherwise, it probably prevented 'dirty air'
from fouling the plugs/valves/rings. Using FI cleaner is the best thing to do.
Remember the commercials that show the 'dirty' FI, then the 'clean' one? That
is very true and WILL affect how the fuel is delivered.
Date: Thu Jul 10 21:02:30 2008
Sender: Dennis Berg
Doc, I drive a 96 Saturn and average around 42 mpg. I drive almost all
highway, 125 miles round trip a day. Fill up every 3 days. Tonight I put 8.9
gal. in the tank. I love driving this car. Last summer the engine finally
gave out after around 160,000 miles and I shopped for high mpg replacements.
Nothing currently on the market comes close except hybrids that were out of my
price range. So I found my old Saturn mechanic, who found a replacement engine,
and now I should be good to go another 100,000.
Date: Fri Jul 11 13:59:51 2008
Sender: Doc Barnes
William,
From what I understood, removing the hose didn't have any negative effect. By
removing the hose, plugging where it went into the intake and filering out the
crankcase gas I was removing the hot crankcase gas from reentering the intake.
Since cooler air provides for denser air and is believed to increase
performance, like a turbo engine, I felt like the fix could only help.
What I was told was that Saturn did that in order to get emissions lowered,
nothing else. Maybe I'm wrong though, however it didn't seem to do anything
but help.
Dennis, I really liked my Saturn too. It was unfortunate that my space cadet
ex had to total it. I had driven that thing all over the place and it never
gave me any trouble accept a clutch that needed changing.
Date: Wed Aug 27 11:39:25 2008
Sender: Just Oz
bump ...
whatever happened to the hydrogen car ... did we blow up.
Date: Wed Aug 27 11:51:08 2008
Sender: William Johnson
Mine's still running. Change the water every 2 weeks. I've replaced the 'coil
tower' once (after experimenting with different ones). Still getting around 38
mpg. Sometimes I have ungodly traffic conditions, sometimes not. I wish I could
take a long highway trip to see what actual milage is.
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