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When was Your Fuel Last Polished?

2nd, July 2019

It’s reassuring to know that if your mains power was to cut out that you have a back-up supply via a generator, but how reliable is it?

Diesel fuel that is stored in fuel tanks for long periods of time will deteriorate and become contaminated by water, solids and bacteria. This contaminated fuel will reduce the output power of diesel generators and in some cases cause it to fail, thus resulting in costly repairs. Where contamination is extreme, fuel can be rendered unusable and would need replacing entirely!

The solution?

The solution is Fuel Polishing. Fuel Polishing can be undertaken without any interruption to the operation of the generator meaning that business can go on as normal. Regardless of the make or size of the fuel tank, it can be polished.

What is Fuel Polishing?

The process removes all traces of contamination present in the generator fuel and re-optimises it leaving the fuel in its optimum condition by removing water, biomass, solids and any bacterial growth.

How does it work?

The process of Fuel Polishing involves pumping the fuel from the bottom of the tank passing it through a series of special elements which include a magnetic plate ‘conditioner’, a powerful centrifuge and fine but heavy-duty filter system and then back into the top of the tank.

After the Polishing process the diesel is treated with a chemical biocide to delay the future growth of bacterial contamination.

How regularly should fuel be Polished?

It is recommended that Fuel Polishing is undertaken every 12-18 months.

Time to Book in a Fuel Polish?

Don’t neglect your generator, when you experience a mains power cut you will be relying on it to kick in and keep your data centre operating. You might not be able to see the contamination within the fuel looking in from the outside, but it will be lurking there waiting to cause equipment failure at the most crucial moment.

Remember prevention is always better than cure. Replacing the fuel completely and repairing a broken generator will be more costly than a regular fuel polishing service.

Workspace Technology offers Fuel Polishing services as well as Generator Load Bank Testing. Don’t leave it to chance, give us a call on 0121 354 4894 or email

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