This video pretty much says it all.

[exxcomm0n]

hey i have a 1969 opel GT for sale 500 bucks obo

@ haliburton

How's the body? Does it run?

Answer me those and you might have a sale. I had one once, and I miss it.

@ all

As long as popular fuel usage is petroleum based, oil companies and car companies will preform "Neal and Bob" services to each other.
If you can't see that, you need to stop thinking of the school economics and start observing real world economics.

I'm going HHO on a early 90's Toyota Camry that already gets 33 MPG city/highway milage (it even better on road trips).
Why aren't most present day vehicles able to have this kind of mileage?

Since folks like going to the Tube so much, do a search for "HHO VW" and find videos from a guy using it in his VW van.
He's using real world gas tank filling/division methods to chart MPG.
Check this one here:

http://www.youtube.com/watch?v=ZJsONDo_jVg

Remember, this is a machine made during the 70's when MPG wasn't even heard of.

....and before you get all huffy and say we get MUCH gas mileage these days, start trying to FIND, let alone compare MPG ratings for a truck or car.

It used to be the lead off for the commercials, and give it a couple of years, and I bet it will be again because by that time oil prices will be so hiked that oil companies can still make the record breaking profits they are RIGHT NOW with more fuel efficient vehicles being offered.

Why didn't fuel economy STAY as the #1 selling point for a vehicle vs. wanting a very capable off road vehicle with horrendous efficiency so you can be like "Arnie" (Arnold Schwartzenegger)?

BTW, how does the reported MPG for your truck in it's specs compare to real world use?

All things to consider man.

[exxcomm0n]

Just one more that explain why things are the way they are......

http://www.youtube.com/watch?v=VZqz75nMuC8

He "says" he's getting improved performance and mileage in his S-10.

Maybe you should get a chevy.

[utilitarian]

The auto industry does not want to build more efficient engines. Not in their interest as it would 'cost them money' and it would cost their bed buddies the oil companies in less revenue from selling less gas. Not going to happen in the US for awhile. Now maybe a country like Japan that has to import almost all their oil..  Oh wait.. they are producing more efficient engines and hybrids as well. Too bad the US auto makers can not get a clue. Maybe they will get a clue after all their sales go flat but then the government will likely bail them out. A shame..

You contradict yourself in the same paragraph.  First you say that the car companies are too friendly with the oil companies.  Then you say that the Japanese are not.  Well, since Japan does not have much of an oil industry, and you are conceding that Japanese automakers have been making fuel efficient cars for some time, why haven't the Japanese automakers jumped on the HHO-on-demand bandwagon?  Wouldn't they just love to broaden their market share by a huge amount?  How about this for a selling point - same Honda Accord, but now with 50 to 60 MPG.

Only one reason why they do not incorporate HHO-on-demand -- it doesn't result in fuel savings.  And how can it?  You are using the inefficient gasoline engine to make HHO, suffering losses in the conversion process, and then in turn using that HHO to supplement that same engine.  This sort of bootstrapping adds losses to the process with no payoff.  You may as well have a container of crude oil somewhere and use your engine to first refine the crude oil and then use the resulting gasoline.

[KilltheMessenger]

Maybe you have not considered how much technology has come in the last 30 years? Lithium Batteries, and too many other chemicals, compounds, and such have made some things appear easy to do today, but impossible to do 30 years ago.
The news on Honda's FCV, is that it is in production now. Even though ford has a bunch of FCV on the road in testing, I didn't hear anything about production yet. I imagine that there would have to be fill stations in place before they could sel any of them. Why could they not put a fill station at every Honda dealer. I guess it would depend on how long a fuel cell would run befoe needing to be filled, or maybe replaced. Making it a user replacable part would be the way to go. Did anyone bother to look at www.teslamotors.com   100% lithium powered car that can blow the doors off of most any gas powered car on the road. Zero to 60 in 3.9 seconds, 2 cents per mile = 256 MPG, 220 miles per charge, 100% electric. Too bad we can't afford one. At least I can't, or won't,

Brake energy recovery could have been here 30+ years ago, it's not a new concept.

[hydrocontrol]

Only one reason why they do not incorporate HHO-on-demand -- it doesn't result in fuel savings.  And how can it?  You are using the inefficient gasoline engine to make HHO, suffering losses in the conversion process, and then in turn using that HHO to supplement that same engine.  This sort of bootstrapping adds losses to the process with no payoff.  You may as well have a container of crude oil somewhere and use your engine to first refine the crude oil and then use the resulting gasoline.

I agree that a using a normal car engine is not a good way to run it off HHO. Perhaps designing an engine from the ground up that will run of HHO-on-demand is a better solution. Do you think a US company will do it ? Not likely. Too much effort. But wait.. It looks like a company in japan already has a water fueled car.

http://youtube.com/watch?v=vPq1exwMaUs