Why Use Winter Additive?

By: Lindsay Farrell / November 4, 2016

Business doesn’t stop simply because the temperatures decrease during winter months.  At Guttman, we want to make sure you can operate your business as usual, year round. 

Untreated diesel fuels contain wax that causes them to gel in cold temperatures. Although this is the same wax that helps with lubrication and viscosity, it can cause issues as temperatures decrease.  When winter weather hits, the wax in the fuel thickens and creates crystals that eventually become so dense that they give the fuel a cloudy appearance (also known as the cloud point).  As the temperature continues to drop, the fuel “gels” and reaches the cold filter plug point (CFPP) and will begin to clog filters, starving the engine of fuel.

To help prevent diesel gelling, winter additive can be blended into the fuel to lower the CFPP.  The additive doesn’t stop the wax crystals from forming, rather it lowers the temperature in which they begin to group together, allowing them to continue to pass through filters. 

Also, fuel supplied in winter months has a lower Cloud Point and CFPP than that supplied in the summer.  If you don’t turn your tanks often, think about using winter additive sooner! 

But what about Kerosene? 

Prior to the widespread development of winter additive, blending kerosene into fuel was the most prevalent way to achieve better performance in winter months.  Although this is still a common practice in some areas of the U.S., it is often not the most economic or effective methodology.  Some drawbacks to cutting fuel with kerosene include:

  • Kerosene that is 15ppm (required by law) is not readily available at most terminals.
  • Blending with kerosene can be more costly than using a winter additive.
  • Customers may experience less engine power.
  • The lubricity of the fuel may fall out of spec.

Below is a chart illustrating an example of the CFPP of an untreated fuel sample, a treated fuel sample, and one blended with kerosene  As you can see, the additive dramatically improves performance compared to both untreated fuel and kerosene blending. 

 Kero Chart.jpg

 

 


Categories: Best Practices


Lindsay Farrell

Written by

Lindsay Farrell

As Manager of Quality Assurance and Regulatory Compliance, Lindsay Farrell is responsible for fuel operability across the company’s terminals and customer sites, as well as keeping up-to-date with the latest regulations and best practices within the industry.


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