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I once ordered everything from J C Whitney that was supposed to improve mpg; spark plugs & wires, coil, oil additives for engine/tranny/rear end, air dam, visor, cooling fan, water injection, exhaust cut-out and fender skirts. After I put everything on and drove for less than a block, the gas tank overflowed!
Killing the aftermarket has nothing to do with it. Some bolt on stuff improves or modifies performance but the OEM's have to engineer for the best driving under all conditions plus they have to warranty the stuff. No such thing as a free lunch. Most of the bolt on stuff that modify performance have tradeoffs that can cause problems for some users or warranty problems. The OEM's are driven by marketing (bragging rights), CAFE, cost, reliability, sales, and warranty. There is a ton of stuff out there that is just plain bogus.
Magnets will give you 1,000 miles per gallon, heck one tank of gas will last all year!
Gee. the oil companies are keeping from this because they like your money.
The interaction of the magnets with the Earth's magnetic field cause a dynamo effect which energizes the gas molecules so you actually produce more fuel by volume and more energetic fuel which produces more power and mileage. Always carry a spare gas can to contain all of the extra fuel produced. Special volumizing gas containers are available with accessory magnetic generators that will keep the fuel energized and preserve the volume and power properties for just 3 easy payments of $19.95 plus S&H of $29.99.
Last edited by Torque1st; Nov 16, 2006 at 01:44 AM.
According to "AAA" research center. There has not been a product that has passed the threshold of being able to claim MPG improvement. If there was it would probably get a Federal grant among other support.
There's an FTC page on them, too; and according to FTC testing, the majority of devices had no effect whatsoever on mpg, some actually decreased mpg, and a few increased it by a small amount. Of those that did increase mpg, many were considered to be not legal because of tampering with emission equipment. In addition, they were usually pricey enough that one would may never break even on them.
In any case, there are some mods that do work (i.e. better exhaust) but they are usually installed because of performance reasons. The Bassani headers go for around $600 I think, and if you get an increase of 1 mpg, (20 -> 21) you'd need to drive about 100,000 miles to recover the cost; 50,000 if you get 2 extra mpg. (one may also need hi-flow cat(s), better muffler, and possibly bigger diameter exhaust pipes, and that may push the cost well over $1000, and that's not including labor).
funny thing, as im reading this thread the add at the bottom of the 2nd page was for fuel system magnets... somewhat ironic
If you're talking about the Magcraft ad -- they sell generic magnets, and not fuel system specific ones: "MAGCRAFT<sup>®</sup> rare earth neodymium magnets for education, industry and engineering.", etc.
It's a fraud. Period. Wonder how many people think they work because they drove with a lighter foot. (Just from being more "aware" of gas mileage)??
When I did courier many moons ago, I had an '87 VW Fox as my courier car. I decided one day to do an experiment. Now I was averaging (city, bumper to bumer, downtown business core more stop than go city!!) 17-18 mpg. Once in awhile I'd hit 20.
So I decided, no smokey starts, no second gear rubber, and made an effort to never go further than 1/2 way down on the gas and even during passing limit it to 3/4. Not neccessarily driving like an old woman, (though my Mother in Law drives faster than I do these days so maybe that's the wrong example) but briskly and shortshifting my way through the gears.
Just by doing that I was averaging 22-26 mpg! Whoa. LOL.
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