Keeping Engines Protected During Brutal WI Winters

It’s time once again to take steps to protect your diesel-powered equipment from harsh winter weather. Cenex Premium Diesel Fuels are exactly what you need – from moderate temperatures to extreme winter cold and everything in between.

CHS Larsen Cooperative takes your winter fuel needs seriously. The Energy Sales team, works closely with our logistics crew and drivers to ensure that every one of our customers gets the proper winter blend. 

Every year, in late October we begin the process of preparing your fuel for winter. We start out with an additive we refer to as WAIV or Winter Aid 4/Cold Flow improver.  This additive is made up of de-icers and wax anti-settling agents.  This additive mix has a treat rate of 1 gallon WAIV for every 1600 gallons of #2 diesel, or in our case Cenex premium diesel, this helps extend the operability of your equipment during the late fall chill. This is an inexpensive, yet effective plan for early weather treatment.

Then, as the very popular holiday of gun deer hunting season approaches, or some of you may know it as Thanksgiving week; we move from WAIV to Cenex Premium Diesel Seasonally Enhanced or SE.  This switch can occur slightly before or after deer hunting, depending on outside temps and forecasted weather.  The ultimate goal with Seasonally Enhanced fuel is to create a 70/30 blend in your tank.  70% #2 to 30% #1, which delivers cold filter plugging protection to approximately -25 degrees and an operability level of about -13 degrees.  Depending on outward weather forecasts, we usually continue delivering Ruby Fieldmaster SE and Roadmaster SE through March of the following year. 

As you can see, CHS Larsen Cooperative goes to great lengths to assure our customers that their fuel is prepared for winter weather.  What can you, as a consumer do to help the process and obtain the proper blend to keep you moving once we freeze over?  Below are a couple things to think about as winter approaches…

  1. Work with your CHS Larsen Energy sales team member or your local driver to make sure you leave enough room in your tank to blend the #1 in with your current #2 or Cenex Premium Diesel fuel supply. Sometimes it is necessary to stop delivery of fuel for a short period of time to allow tank to empty some.  We call this blending down a tank.  Make sure we do this early enough in the season, when temps aren’t yet arctic.  As a reminder, #1 will not blend properly if the outside temps are below the current cloud point of the fuel in your tank.
  • Don’t forget about your equipment!  You know the tractor that you haven’t used since July and don’t plan on using again; until you have to move snow in January.  Well that tractor has no #1 fuel in it!!!  Take it for a ride and use the fuel, refill it with winter blend.  This is a lot easier than emptying the tank, heating everything with a hair dryer and changing a filter, in -2 degree weather!
  • Preventative maintenance! Change your tank fuel filters twice a year, spring and fall. Old fuel filters equal plugged fuel filters equal no fuel coming out of your nozzle!  Don’t have a filter on your tank?  It is imperative you get one asap. Tanks get crud in the bottom of them, it’s life; the last thing you want to do is pull that crud out of the bottom of the tank and put it inside the fuel system of your equipment.  Call your Energy Sales Team Member and we can get you set up with a tank fuel filter system. 

If you have any questions about winter blending or Cenex Premium Diesel please call us, we are happy assist you with all of your energy needs. 

Written by Kim Leisner, Certified Energy Specialist

© 2020 CHS Inc.