The quality of today's diesel fuel has not advanced it in fact has deteriorated. Today's diesel fuel contains more water than the fuel of just a few years ago.
Water is the greatest concern because it is the most common form of contaminant. Water may be introduced into the fuel supply during fueling when warm; moisture laden air condenses on the cold metal walls of fuel storage tanks or from poor housekeeping practices. The effects of water in diesel fuel can be serious. Water displaces the diesel fuel. When the fuel is displaced wear occur because lubrication is now absent.
Water means microbes. The problem is compounded once microbes are present: Bacteria + Water + Oxygen equals more bacteria + carbon dioxide + more water. None of these scenarios are good for fuel.
The Dieselcraft Fluid Engineering has developed a new Model 5x32 Fuel Purifier that removes 99.997% of the visible water at flow rates up to 12 gallon per minute and over 95% of the large contaminates found in diesel fuel. This is all done without the use of replaceable, changeable or cleanable filter elements. There are no moving parts, except the fuel inside the purifier. There are no elements to clean and dispose of, only purging the water and particulates. Test data can be seen at http://www.dieselcraft.com/docfiles/WaterRemoval.pdf
This new model is ideal for those that need to incorporate a fuel polishing systems on a fuel storage tank.
Dieselcraft manufactures models to fit any application. See: http://www.dieselcraft.com/diesel-fuel-purification-systems.php
The Dieselcraft Purifier can be mounted on the engine, at the fuel dispensing pump, where it cleans the fuel before it goes into a vehicle or in a fuel polishing and re-circulating application to maintain stored fuel.