We have a propane distributer here who started in business in the late 40's and tried to convert everyone in the county to propane. He still goes to work every day, but his son runs the business. The last 20 years his delivery trucks have been Diesel instead of propane. Maybe there is a reason. Also, we had a trucking company here who converted their fleet of RD450 International engines to propane. About a year later, they were back on gasoline. There had to be a reason.
