A local LP distributor ran his delivery trucks on propane from the 50's until about 25 years ago. His delivery trucks are no Diesel. I think that says something for LP. I have 2 forklifts on propane. It is good for forklifts because they always start and propane doesn't go stale like E10.
Texas as well as Oklahoma require an annual prepaid users tax stamp. I wouldn't consider propane on the highway any more.
