Not open for debate... Jimandmandy, please subscribe to this thread and wait for results from THOSE WHO HAVE THE UNIT ON THEIR TRUCK. It is not their job to measure with your yardstick, or anyone elses... I (we) just want to know what OWNERS of the device think about it and it's performance (or lack thereof). I hope this is where they can come and say "I have it, I've used it, it's a scam, it doesn't work, don't buy it, and here's why...."

OR-

Just maybe they will have a good experience, and they can share what might simply be "I don't know why, but my 12mpg has become 16mpg, and I'm happy with the product..."

Either way, I (we) came to alternative fuels for solutions, not a fight... I don't want to sort through 7 pages of one upsmanship and puffery to dig out the occassional nugget of what I (we) are trying to get, and that is, does this device work FOR THOSE WHO ARE USING IT.