My "worst" so far is 60 mpg, but I'm a newbie...
I used to have an Acura Integra 5 speed manual that I tried to s-q-u-e-e-z-e out as much mpg's as I could, best I got there was 35 mpg's. My lean driving habits were derived from that experience. I even tried the HHO route, but caustic overflow to carb. put that to rest. I have to admit though...Hydrogen injection had that car running at its best...it was like adding 20 HP to the engine. There is definately hope in that area...water on the moon anyone?...
A couple of the mods from the "water for fuel" school of thought that are worthwhile here are the
warm air intake and
fuel heater to eliminate the downfall of mpg's in the winter months due tyo cold weather.
I'm seriously looking at those 2 mods above for now. There's a guy on youtube...I believe "150 mpg car" or some other name that's gonna try the HHO route, so I'm gonna be watchin' this guy...
bigjim56