What is fuel polishing?

It is impossible to deny that ‘fuel polishing’ seems an odd phrase to anybody seeing it for the first time. While it has nothing to do with dusters and beeswax, it has everything to do with cleanliness. More importantly, it is a vital part of any standby power strategy.

In a nutshell, fuel polishing is the process that removes water and contaminants from fuel while it is held in storage tanks.

Diesel Defence Fuel Polishing Systems

IPU’s Diesel Defence on-tank and mobile polishing units keep fuel clean, dry and ready to power your critical applications.

Fuel polishing increases generator reliability and longevity

By removing water, diesel bug and particulate contaminants from your stored diesel, IPU Group’s fuel polishing systems ensure that your generators, pumps and plant keep running as long as you need them.

Although you probably already have a programme in place to maintain the diesel engines that provide critical power to your facilities, the fuel that feeds them is often overlooked.


How is fuel polishing different to fuel filtration?

Fuel polishing happens at the storage tank. Fuel filtration happens on the engine.

Because polishing is such a thorough process it removes the contaminants that would rapidly clog a simple fuel filter and bring your generator to a grinding halt.


IPU supplies two families of fuel polishing system:

  • Diesel Defence on-tank units are fixed location units that serve up to 3 large storage tanks and can be built to suit any tank size.
  • Diesel Defence mobile buggies give you the flexibility to polish the fuel in numerous smaller tanks with a single device.


Should fuel polishing be used to clean dirty fuel?

No. IPU Group’s fuel polishing systems are designed to maintain the cleanliness of clean fuel. It is not practical nor economical to use them to clean dirty fuel. Their fine filters will quickly need replacing.

Dirty fuel should be cleaned with a cleaning system such as IPU’s DC70 buggy.