Okay, run diesels, I don't care. I've got 3 of them and know the advantages and disadvantages. I have worked on megawatt level diesel generators and know the ins and outs. Propane works great for me and most other people with no major disadvantages.
Funny how the industrial diesel generator industry doesn't run Listers though. Must not have your knowledge Midnight LOL.
And hitch, after giving some thought to your situation you must be keeping your diesel cool down near the water. Warmer temperatures likely shorten diesel life.
Also if you live in a cold climate make sure you fill your tank with winter diesel or it may gel and not start in the winter if you use summer diesel.