I viewed a demonstration in person a few years ago (the same one on the youtube video) and I have been using this product in all my cars for a while now. I wonder if anyone here has tested this for mileage improvements. Would anyone want to do a real world test to tell me if there is a mileage benefit? I use it in engine and transmissions primarily as a longevity additive. In an old school Beetle, the valves were quieter, and in an Audi 4000 I had a while back, it felt like the engine RPM's came up with a lighter touch on the pedal. Sounds weird, I know, and I am the biggest skeptic of "Snake Oil" after 35 years in the automotive business.
Be sure and watch part 2.
Yes, I know it's hard to believe but I can assure you it is rather amazing to watch in person.
Powerupusa.net - Power Up NNL-690 Product Information
Thanks,
Brian
Edit: This is about the only thing I could find about this product and mileage in a car (a Prius).
http://priusonline.com/viewtopic.php?f=3&t=987&start=0
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