Chuck Gould wrote:
:On Jan 30, 9:21???pm, David Scheidt wrote:

:
: The moon is made of green cheese, Chuck. ?That's just as likely as
: these things working. ?The allegedly scientific explanation makes as
: much sense as pointing a wand at your engine, saying "Abra-Cadbra!"
: and expecting your fuel usage to fall. ?Don't take my word for it,
: though. ?See what the FTC has to say:http://www.ftc.gov/bcp/conline/pubs/autos/gasave.htm
:
: If they worked, you'd know it. ?They're a scam.

:Certainly very interesting.

:Any comment on the data developed by a CARB certified testing agency
:and linked in a previous post in this thread? ???

Too small a sample size to mean anything, for one thing. I'm not in
the mood to really look at the numbers, but there's substantal
variation in them run to run. That's not necessarily a flaw, but it
does mean that they need more data to show that the changes they
report mean anything. And they don't report some things that would
make a difference in how the engine runs, like the coolant
temperature, or the ambient temperature.