
Some people have raised questions about the marketing of the Pro-ma DT5 diesel fuel treatment to Diesel Specialists, who cite instructions passed down from the diesel industry concerning the interaction of water with common rail diesel injection systems. Such instructions might say “the smallest amounts of water can result in effects that are just as disastrous to the fuel injection pump as dirt, causing rapid wear, corrosion and even seizure. It is vitally important that water is prevented from reaching the fuel injection equipment.”
Naturally, when faced with such explicit instruction, the prospective user of the Pro-ma DT5 becomes quite wary of some of the product claims. Diesel injection systems and engines are expensive to repair, and any possibility of engine damage is a potential concern for the cost-conscious consumer.
DT5 and Water Dispersion
A described in the product literature, DT5 disperses and removes water from fuel systems by breaking it into micelles of very small diameter, typically close to one micron in size. The water-dispersing surfactants in the formula are long-chain polymer molecules with ends attracted to either water or fuel. These molecules surround the water droplet, such that the hydrocarbon-philic ends attract to the surrounding fuel. These micelles being surrounding with surfactant and solvent molecules tend to suspend themselves in the fuel and do not easily fall out of solution.
With respect to the statement issued by the Diesel Industry, Bell Performance and Pro-ma Performance Products would point out some key distinctions that are relevant to the situation as currently described. The statement the Industry is making is designed to cover the broad spectrum of situations that common rail injection users face, across Australia and around the world. The Diesel Industry is encouraging all consumers to avoid exposure of their systems to water. But it is not clear that the Diesel Industry has in mind the kind of situation that the DT5 additive creates (micron-sized micelles passing through filters). The Diesel Industry is concerned about water as most consumers commonly may encounter it – water that exists in situ on the bottom of tanks or in larger droplet from within the fuel.
Pro-ma DT5 users do not encounter water in such a fashion. The action of the DT5 additive in breaking down water and dispersing it will not cause users to run afoul of the recommendations that Diesel Industry is making for avoidance of exposure to water. The micron-sized micelles the DT5 creates cannot and do not in practice cause any harm of diesel injection systems, common-rail or otherwise. CW Products also knows this to be true in practice, as numerous municipal fleets in the state of Florida, many with common rail injection systems, utilize the DT5 formula without any issues or problems.
Lubricity
The US standard for lubricity in diesel fuel is derived from the ASTM D-6079 HFRR test (High Frequency Reciprocating Rig). The test involves rotating a ball against a hardened steel surface (while exposed to lubricant) for a period of 90 minutes. The test results are expressed in microns of scar size on the test bearing, and the maximum scar size for proper diesel specification is 520 microns. Good diesel fuels which meet all proper specifications will most commonly have a D-6079 reading of between 460-520 microns. 460 microns is the maximum scar size preferred by the Engine Manufacturers Association (EMA). For lubricants, smaller scar sizes correlates to superior protection and better performance on the test.
Diesel fuel lubricity is an important for users around with world with regulations on sulfur content having been implemented in the last decade. Removal of the sulfur to benefit the environment has given the consumer a drier diesel fuel with a lower lubricity value. This lubricity imparted by the fuel is relied on by the engine to lubricate and extend the life of certain moving parts such as injections and fuel pumps.
For this reason, the DT5 formulation contains a poly butane ashless lubricant which increases the lubricity value of diesel fuel and protects these parts. Formulations research indicates that, at normal treat rates of 30ml to 40 litres of diesel, fuel which may have failed the specification at a level of 600 microns may now be brought back into specification to meet or exceed the U.S. lubricity standards of 520 microns.
To order Pro-ma DT5 visit this website.
For Video Evidence, Click Here!







