daox wrote:I'm not going to comment on the magnets, but I will comment on the testing done by the EPA and Mythbusters (which I didn't see, but would love to, great show). Most of the testing that goes on does not include retuning the car. Whose fault is this? Well, its probably the product manufacturer. You can't expect to just bolt on a device that increases effeciency without telling the computer that it needs to cut back on fuel. Its going to inject the same amount regardless (there are obviously acceptions to this). The same goes for a carburated engine as well. You make performance changes, you retune the carb. Why would effeciency modifications be any different? Yet, of all the devices I've seen, next to none have a way of altering fuel or ignition timing. This is the key that most have missed IMO.
It is only reasonable that the EPA and Mythbusters test the products per the manufacturers instructions. That being said....there are plenty of crap products out there that are only out there to suck up your money. That does not mean there is no merit in some of the principles. Personally I don't believe the magnets will do squat to your fuel based on principles of physics but I'm no expert in that field either.
As for our friends on Mythbusters....I wouldn't give them too much high praise (and I love the show). I have seen many poorly done experiments on that show which points to some poor technical advisors (even though the hosts are really very clever guys). The most glaring one was the bridge collapse based on marching soldiers. Mainly their suspension bridge was not anchored at the ends which makes it a whole different animal then what they were trying to test. The robot marchers were at a pace or frequency of marching like a human but the bridge was miniaturized which, if it were correctly anchored, would have a much higher resonant frequency than a marching human. That is just one example but I've seen many issues with their setups. They did the tailgate up or down experiment which is actually valid.....for that truck only. Smaller trucks, long bed/short bed, quad cab or not, ground clearance, etc....all have an effect on the results for any given truck. So again there is a problem. I have a bit of a problem any time someone says the Mythbusters debunked something.
I'm not really interested in the whole whole magnet gag until someone come up with definite proof.