so as i am in brazil and gas is very expensive.
we jsut got a dodge dakota pick up with the 3.9L v6 engine.
It came with natural gas kit, ( two tanks in the box and small controler under hood and timming retard thingy )
with the price of gas here its about 150$ to pill up the 80 L tank. yes gas here is about 7-8$ a gallon witch gets about 180-200 km per tank (20% ethanol fuel)
to fill the natural gas tanks it cost about 30$ and the truck gets even greater fuel ecomomy about 260-300 km per tank.
this is also very common in europe with propane kits it costs about 1/4 to drive your car.
so guess what the buckaru is getting next !!
the thing is these kits are stupid simple, since natural gas and propane are wide band burn fuels ( will latch on with what ever o2 molecules and burn anyways) they simply put a injector into the air duct before the throttle body.
and just turn it on !!. i will use megasquirt and aditional injectors to do this way more precisely. ( bbq propane tank upside down feeding injector(s))
and what ever timming map that is needed.
what i am not sure about is the use of propane in high hp, i'm not sure about its piston cooling abilities so some further research will be done. but i plan to run on propane for idle and cruse.
i'm sure you guys will insert productive comments below.