Every winter, after fall harvest and tillage are wrapped up, farmers begin prepping farm equipment for the long slumber ahead until spring planting arrives. Or, if you plan on using that tractor or UTV to move snow or for other tasks around the farm, you need to prep your machinery for that as well.
There are several essential steps farmers need to consider for winter farm machinery use and storage, says Jonathan Woetzel. Woetzel has enjoyed a long career with Minnesota-based cooperative CHS, where he focuses on quality assurance for the Cenex brand, which is CHS’ in-house label for its fuels, lubricants and propane.
How to handle fuel
His first piece of winter farm equipment preparation advice for farmers and fleet managers is make sure you have the right diesel fuel on hand.
“The wax that naturally occurs in diesel fuel, especially No. 2 diesel fuel, when it gets too cold, the wax crystallizes and becomes a solid form that doesn’t pass through filters very well,” Woetzel explains. “There are fuels available, like our Cenex Winter Master premium diesel fuel, that include additives to prevent gelling.”
That unwanted fuel thickening, or gelling as Woetzel calls it, is mitigated specifically by cold flow improver (CFI) additives in the fuel.
For any gasoline-fueled equipment you’re not planning on running this winter, Woetzel recommends adding a fuel stabilizer to the tank if you’re not able to empty it out prior to storage. Although, oftentimes a premium winter diesel fuel blend will already contain fuel stabilizers, so check with your fuel supplier before investing in aftermarket stabilizers.
Oil and lubricants
Changing the oil in any equipment you store for winter is a good idea, he adds.
“I say that because used oil, if it’s been in there for quite some time, has lost some of its ability to prevent rust and corrosion,” Woetzel says. “So, get the old oil out and put in fresh oil and a new filter, and then fire it up and run it for 10 minutes or so to circulate the oil. Now all the internal engine parts are coated with oil to prevent rust and corrosion.”
The quiet winter period is also a great time to send off any used oil samples for lab analysis, which helps detect internal equipment issues (e.g., contaminants like coolant leaks or unusual engine wear), and then you can address maintenance needs before spring planting season. Most oil testing services turn samples around in 48 hours and will email a PDF of the results.
Another consideration is oil type. You want engine oil that will flow quickly as the machine starts up. Woetzel says you want to use high-quality synthetic oil.
“A full synthetic gives better cold starting capabilities and lubrication,” he adds. “And you want to make sure you have the right viscosity grade, like a 5W-40. That 5W means it’s going to flow very well right away at cold startup and work well in cold temperatures.”
Coolant and antifreeze
Because coolants and antifreeze are formulated for a wide range of temperatures, there’s not much to worry about in that regard. Woetzel does recommend checking your owner’s manual for the manufacturer’s recommended coolant change intervals, and if you’re due for a coolant swap, get that done (and a coolant flush) before winter hits.
If you’ve purchased a used machine that’s already full of antifreeze, but you’re not sure what type or if it’s the right formulation for your climate, there are handheld testers that you can purchase to verify the fluid’s actual freeze point.
Finally: hit those grease points
Take a second and think about when you last greased up all the grease points on your tractor, combine, planter or tillage tool, Woetzel says. If you’re putting the machine into storage and won’t need it until it warms up, a standard No. 2 grease is good for spring, summer and fall. If you’re going to keep using it during the winter, he recommends using a No. 1 grease.
“We tell them to switch to a No. 1 grease, which is softer and easier to pump, and it flows better,” Woetzel explains.
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