Would anyone know if the 4.2 can be recoded so as to improve mpg??
BENG

 

bump.. I'd like to know the answer to this one too

 

I think this is like the econ button on some of the new V8s. I would say you would be better off getting a chip and exhaust. Performance chips for the N/A cars let them run leaner to make more power The result is better performance and gas mileage

 

I am contemplating an LPG (propane) conversion. LPG is now about $3.50 a gallon. now I have to research what kind of MPG I might get with it, + cost of conversion. BENG

 

I was also thinking about this the other day. I think they are about the same gas might have a slight edge. But considering most industrial machines use it (hilo & other weight equivalent things) I would say it could be a good shot. Either way you may still need to fine tune the electronics of the car

 

A gallon of propane has ~27%fewer BTUsthan a gallon of gasoline.

 

4.2 likes gas.... A LOT