Clean Fuel Supports Reliable Power — Expert Diesel Fuel Polishing Services from WPP

Serving Greater Houston & the Gulf Coast Region

Diesel Fuel Tank Polishing
Fuel polishing

Regular fuel polishing–removing living organisms and filtering out sludge that can clog engine filters, block injectors, and stop your generator from running as intended–is key to backup generator performance. 

Worldwide Power Products provides this vital service on its own or as an add-on to our preventive maintenance (PM) packages at an additional charge. Pricing depends on size of the fuel tank and accessibility to the tank.

Contact WPP today to make sure you’re running with clean diesel the next time your generator fires up. 

The Benefits of Fuel Polishing

Clean diesel fuel means better generator performance.

Our fuel polishing service delivers:

  • Guarantee emergency generator reliability
  • Prevent catastrophic engine failure
  • Meet NFPA 110 best practices
  • Extend equipment life
  • Eliminate costly repairs and downtime
  • Prevent tank and component corrosion
  • Eliminate bacterial and fungal growth
  • Ensure fast, reliable startup
  • Maintain fuel stability
  • Reduce emissions

Our Fuel Polishing Process

Here’s how the process works:

  1. Step 1: Initial Visit and Testing: We take a representative sample of your fuel from the middle and bottom of the tank (where contaminants are likely to collect, if present) and send it to a lab. This gives us a full report on what’s going on in your fuel tank.
  2. Step 2: Polishing: We return to your site with the test results and perform the polishing work. First, we draw the fuel out of the generator and into a portable filtration unit where large particulates, water, and small particulates like sediment and sludge are removed.
  3. Step 3: Treatment: Depending on the needs of your fuel as determined by the test results, we then add stabilizers, conditioners, and biocides, if necessary, to improve fuel quality and prevent microbial growth.
  4. Step 4: Recirculation: The polished fuel is sent back into the generator fuel tank with no loss of fuel.

Common Signs Your Fuel Is Contaminated

Does your filler cap look like this?

Rusting filler caps, cloudy fuel, and engine problems are red flags. If you’re seeing:

  • Cloudy or milky appearance
  • Dark or sludgy consistency
  • Foul odor from fuel or tank
  • Generator stalling or hesitation
  • Clogged filters or fuel lines
  • Excessive or dark exhaust smoke

Contact our service department to clean your fuel and protect your generator.

FAQs About Fuel and Fuel Polishing

There are a number of factors that determine fuel quality:

  • – Environment: hot summers and direct sunlight make your tanks expand and contract, introducing more condensation which can create conditions favorable to microorganism growth.
  • – Amount of fuel in the tank: a half-full tank has more air in it, leaving more room for condensation to form inside the tank.
  • – Run time: running a generator more frequently disturbs organism growth.
  • – What’s already in the tank: sediment and debris settle and build up over time.
  • – How clean the fuel was when the tank was filled: fuel grade and quality when delivered is vital.

Yes, unfortunately. Fuel can get contaminated during transport or storage, or it can be contaminated upon being added to a tank with algae and other organisms already present.

Under the right conditions, any fuel tank can develop organisms–even a fuel tank that was clean to begin with.

Yes. Although a sample may have no visible particulates, a lab report can reveal a high level of microorganisms. 

Although fuel polishing can help you maintain a clean tank, it’s not the same thing as tank cleaning. Tank cleaning involves manually removing contaminants from the inner walls, while fuel polishing involves removing contaminants from the fuel.

Get Generator & Engine Service—Fast, Reliable, 24/7
Complete this quick form and our Houston-based team will respond within 24 hours.

* Required field








For urgent needs, call us at 713-434-2300 now.