Ok,
So in theory, if I put a switch on my alternator. Drive down the highway @ 60mph/2400 rpm and turn the switch off and run completely off my battery for 20 minutes than I will affect a 15-20% savings in fuel?
Conversely, If I leave the switch on and introduce a 10 amp load I will lose 15-20%? Shouldn't there be a hp/amp chart somewhere?
And why don't the manufactures say 15/18/12mph (city,highway,nightime)
Sorry if I being obtuse. Anybody look at the plasmatron?
jj