Originally Posted by
80broncoman
I'll throw another curve ball at you. on some injection pumps (I have no idea about the 7.8's pump)the fuel flowing though it is the ONLY thing that cools and lubes the pump.So if you cut back on the fuel volume you have just also cut its lube and coolant as well.
For cheaper pennies per mile I'd look into Waste Veg Oil or Waste Engine Oil as fuels before I'd go with propane.
Good to know. I was thinking LPG because I get it in bulk at home. I fill my current cars/truck and equipment at home and fill for about $1.5/gal. waste oil would be another thing for me to buy and store and not really worth it. I converted my pickup for about $400 so the cost is minimal and significantly offsets the fuel cost.
I have read where LPG runs more efficiently in a higher compression diesel vs a traditional gasoline car.