I met a guy along time ago ..in the late 70s ..he said he could save 30% in fuel cost in any car..for less then $10 worth of part ..
he told me to go get a tennis ball and some duct tape ..put the ball under the gas pedal and tape it to it....i never tried it ..but ???
and then he said "you have to giveup some thing to get some thing else"
you want a hotrod ...give up mileage...you want mileage... give up the hotrod..
i like my:bwgr: 4x4 hotrod..