All good advice. You need to make sure of filtration. Good quality filters of a known good filter manufacturer with a micron rating better than 10 micron would be a great idea. (Fleetguard or Racor) Filters with water stop paper is also a good idea. Fuel additive is a MUST now days. There are many different brands of additives on the market but we have best resuls with Stanadyne, New Performance Formula. (Blue Bottle) If you look at a VP44 pump, the fuel goes in the top of the pump and also returns out of the top of the pump which makes it a nice water seperator. Fuel additives with a anti rust additive and a antioxidant additive helps with this. At the last dealer meeting that we have attended, ALL of the fuel injection manufacturers were warning us about Bio Fuel and it's ability to absorb 35% more water than normal petroleum diesel fuel. We have seen their examples many times now in our shop. Fueling boxes do cause pump failures. Not all the time however. Which ones are more prone to failures is a very complext discussion and one that I would not comment about. Supply fuel pressures should be 13.5psi under load, 17psi would be the highest at idle, while 10psi under load would be the lowest I woulld be comfortable with. There are other things that cause failures but this would cover the most probable ones. Thanks, Brady