Maintenance & Service Tips, Garbage Trucks

Extreme Cold Weather Fleet Maintenance

Author

Richard Kemner

Date Published

01/22/2026

cartoon illustration of a row of white RDK Truck Sales refuse trucks covered in snow and icicles, parked in the dealership yard during a snowstorm with red RDK Truck Sales signage glowing in the background

Extreme Cold Weather Fleet Maintenance

Brutal Cold Incoming: How to Protect Your Refuse Fleet During Arctic Snaps

Pixar-style cartoon illustration of a row of white RDK Truck Sales refuse trucks covered in snow and icicles, parked in the dealership yard during a snowstorm with red RDK Truck Sales signage glowing in the background

By Richard Kemner, RDK Truck Sales | January 2026 | Cold Weather Fleet Maintenance

When extreme cold blasts across the Midwest, Northeast, or Mid-Atlantic, fleet managers face a steep operational battle. You already know what’s coming. We’re looking at temperatures dropping well below freezing—some areas dipping below zero—with ice storms, snow, and freezing sleet making things even more challenging.

“After 40+ years in this industry, I’ve seen plenty of cold snaps. But today’s trucks and equipment require a different game plan than they did 20 years ago.” — Richard Kemner, RDK Truck Sales

Here’s what you need to know to keep your fleet moving.

The DEF Problem: Your Biggest Cold Weather Enemy

DEF remains one of the most vulnerable components on modern heavy-duty trucks. Because DEF is roughly 67.5% deionized water, it freezes at 12°F (-11°C). Standard winter nights across much of the country easily cross this threshold.

⚠ What Happens When DEF Freezes

Your truck goes into derate mode (reduced power).
In severe cases, the engine won’t start at all.
The DEF tank and lines can crack if completely frozen.

What To Do

Keep trucks in heated buildings overnight whenever possible.
If outdoor parking is your only option, use DEF tank heaters.
Run the engine periodically to keep the system warm.
Never add additives to DEF—it voids warranties and damages the system.
Keep DEF tanks at least half full; less fluid freezes faster.

Pixar-style cartoon illustration of an RDK Truck Sales technician in a red winter jacket checking a digital thermometer reading 8 degrees Fahrenheit beside a frost-covered diesel exhaust fluid tank on a white refuse truck

DPF and Aftertreatment Systems

Modern emissions systems depend on extreme heat to function correctly—heat that cold ambient air rapidly siphons away. During severe cold spells, Diesel Particulate Filters (DPF) and Selective Catalytic Reduction (SCR) systems struggle to maintain operating temperatures, leading to prolonged or incomplete regenerations.

⚠ Watch For

Extended regen times tying up trucks.
Warning lights from cold sensors giving false readings.
Blocked regens if trucks are doing short runs and shutting down before completing cycles.

What To Do

Let trucks fully complete regen cycles before shutting down—even if it means idling an extra 20 minutes.
Don’t ignore warning lights; cold weather amplifies small issues into big problems.
If a truck has been sitting in extreme cold, let it idle and warm up before hitting the road.

Hydraulic Systems: Your Packer’s Worst Nightmare

This is where I see crews get into real trouble. In refuse operations, your hydraulic system bears the brunt of physical work. Extreme cold causes hydraulic fluid to thicken dramatically, placing immense stress on pumps, valves, and cylinder seals.

“What flows like water at 70°F moves like honey at 10°F—and barely moves at all below zero.” — Richard Kemner, RDK Truck Sales

⚠ The Problems You’ll See

Slow or jerky packer operation.
Cylinders that won’t fully extend or retract.
Increased strain on pumps (leading to premature failure).
Seals that crack and start leaking.

What To Do

Warm up the hydraulic system before running full cycles—operate the packer slowly through several partial cycles first.
Check hydraulic fluid levels; cold weather reveals low fluid faster.
Inspect all hoses and fittings for cracks before heading out.
Consider switching to a lower-viscosity hydraulic fluid for winter operations if you haven’t already.

Pixar-style cartoon illustration of an RDK Truck Sales technician inspecting a hydraulic hose and fitting near the packer body of a white refuse truck in a snowy service yard, holding a wrench

Packing Frozen Trash: Physics Works Against You

Here’s something newer operators don’t always think about: frozen garbage doesn’t compact like regular garbage. When trash is frozen solid, your packer is essentially trying to crush ice blocks. This puts tremendous strain on the packer, the hydraulics, and the truck’s PTO system.

What To Do

Don’t force it—if the packer is struggling, back off.
Expect reduced payload; frozen material takes up more space.
Run more frequent trips rather than trying to crush frozen loads into one haul.
Inspect packer blades and components for damage after running frozen loads.

Quick Pre-Trip Checklist for Extreme Cold

Before your drivers head out this weekend:

Check all fluid levels – engine oil, coolant, hydraulic fluid, DEF
Inspect batteries – cold weather kills weak batteries; test them now
Look at air dryers and tanks – moisture freezes and locks up brakes
Test all lights – shorter days mean more time running in the dark
Verify tire pressure – cold drops PSI; check and adjust
Confirm heaters work – cab heaters and DEF tank heaters
Check wipers and top off washer fluid using winter-rated fluid only

Pixar-style cartoon illustration of the warm glowing dashboard and heater vents inside a refuse truck cab at dawn, with frost clearing from the windshield and a snowy RDK Truck Sales yard visible outside

RDK Truck Sales · Tampa, Florida

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The Bottom LineToday’s heavy-duty refuse trucks offer incredible fuel efficiency, cleaner emissions, and reliable power. However, their advanced systems demand far more proactive care during extreme winter weather. The fleets that invest an extra 30 minutes in pre-trip winter prep are the ones that keep their routes running while others wait on tow trucks.

Stay safe out there. If you need parts, service support, or just want to talk through what you’re seeing in the field, give us a call. That’s what we’re here for.

RDK Truck Sales has been serving the refuse industry since 1997. We’re an independent dealer representing Battle Motors, Pac-Mac, New Way, Labrie, and all major chassis manufacturers. Sales, service, parts, and leasing—nationwide.

Need help keeping your fleet moving through extreme cold?

Call (813) 241-0711 Visit www.rdk.com

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