At −40, Truckers Never Shut Off the Engine. Here's Why

Why do truckers on the Alaska Highway stay in the cab at −40 instead of the motel across the road? Because up here, a truck left alone at minus forty can be dead by morning — and a dead truck hours from the next town is a survival problem. The true story of trucking in extreme cold: the 1942 soldiers who built the Alaska Highway, the coldest temperature ever recorded in North America, the ice road truckers of the Northwest Territories, and Alaska's Dalton Highway. CHAPTERS 0:00 Why truckers skip the motel at −40 1:15 I. The Road That Could Not Stop (1942) 3:29 II. Minus Sixty-Three (Snag, Yukon, 1947) 4:56 III. What −40 Does to a Truck 6:54 IV. The Rules of the Road 8:18 V. The Engine That Never Sleeps 9:07 VI. The Heater the Size of a Shoebox 11:00 VII. The Road Made of Ice 13:22 VIII. The American Answer: the Dalton Highway 14:43 IX. Why the Cab THE STORY In March 1942, more than 10,000 American soldiers — about a third of them African American — began cutting the Alaska Highway through Canada. The first truck from Dawson Creek reached Whitehorse after 71 hours of driving, and that first winter vehicles were kept running around the clock, because an engine that stopped might never start again. In 1947 the weather station at Snag, Yukon recorded −63 °C (−81 °F), still the coldest official temperature in North America. What −40 does to a truck: diesel wax gels and blocks the filter, starter batteries lose cranking power, diesel exhaust fluid freezes, and a steel cab gives away its heat. Truck drivers answer in layers — winter fuel and anti-gel, block heaters plugged into "bull rails", a diesel bunk heater that burns about a twentieth of the fuel of an idling engine, and auxiliary power units. Then the ice roads: the Tibbitt to Contwoyto Winter Road to the diamond mines, made famous by Ice Road Truckers in 2007, and the Dalton Highway to Prudhoe Bay, with about 240 miles of no public services. This is truck driver life at the edge of the map — and why the cab beats the motel. If someone in your family drove the Alaska Highway, the ice roads or the Dalton, or if you've slept in a truck cab at −40 yourself, tell us in the comments. What was the coldest night you ever spent on the road? 🔔 Subscribe for a new documentary about the Canadian North every week:    / @boomtownnorth   MORE FROM BOOMTOWN NORTH • Why Alaska Is Not Part of Canada (One Vote in 1903):    • Why Alaska Is Not Part of Canada (One Vote...   • Abandoned in the North: What Happened to Hyder, Alaska?:    • Abandoned in the North: What Happened to H...   • Klondike Gold Rush: 100,000 Went North, Almost None Got Rich:    • Klondike Gold Rush: 100,000 Went North, Al...   SOURCES • Wikipedia: Alaska Highway; Snag, Yukon; Tibbitt to Contwoyto Winter Road; Dalton Highway; Ice Road Truckers • Encyclopedia Arctica vol. 9; QST, April 1945; Canada's History, "Canada's Coldest Day" • U.S. DOE / Argonne: truck idling; Webasto Air Top 2000 datasheet; NHTSA: DEF; Alaska Public Media: Plug @ 20 • Canada SOR/2005-313 and U.S. FMCSA 49 CFR 395 (hours of service); Batteries 9(3):176 (2023) CREDITS Archival photographs and film: U.S. Army Corps of Engineers / U.S. Army Signal Corps (Alaska Highway, 1942–43, and the 1944 Army Service Forces film "Alaska Highway", via Public.Resource.Org), U.S. Navy, USAAF, Library and Archives Canada (Whitehorse), Provincial Archives of Alberta, BLM Alaska, U.S. Fish and Wildlife Service, National Park Service, NASA, and others, public domain or no known restrictions, via Wikimedia Commons. Licensed photos and video (via Wikimedia Commons): Anita Ritenour, Anthony DeLorenzo, Bureau of Land Management Alaska, Ian Mackenzie, Jason Woodhead, Marke Clinger, Martin Male, Oregon Department of Transportation, Scott McMurren, Tim Beckett, dion gillard, madmack66, saintpo2007 (CC BY 2.0); Bo Mertz, D. Sikes, Darren Kirby, Doug Noon, Eric Kilby, Hyougushi, Nick Bonzey (CC BY-SA 2.0); Jeffrey Simonson (CC BY 3.0); CanadianEman, Daniel Case, GravityRidesEverything, Jason Pineau, Mandruss, Miguel.lima, N727RH, Webasto Group, Xnatedawgx, YK Times (CC BY-SA 3.0); Samuell (CC BY 4.0); Wayne Logus, Diego Delso, DrReload, Famartin, OhanaUnited, SenileSlayer15, SharkFinnedGirl, gillfoto (CC BY-SA 4.0); Webasto (CC0). Stock footage (Pexels license): Abdel Achkouk, Alex Kad, Alex Midence, Aurelijus U., Braeson Holland, Dario Fernandez Ruz, David Roberts, EJ Merl, Eddie Pelletier, Efrem Efre, Erik Mclean, Everett Bumstead, Joerg Schlagheck, Jozef Papp, K, Kaboompics, Linad, Magda Ehlers, Matthew Padilla, Meghan, Mger Akopian, Monsieur Sylvain, Nico Becker, Ricky Esquivel, Sammy Marrco, Sergey Guk, Stephen Clark, T Honkamies, Tom Fisk, Tom Shamberger, Zuzanna Musial, binary Ego, vignesh srivatsav, Григорий Демченко. Some modern shots are illustrative, not the exact place named. Maps made for this video with Natural Earth data (public domain). Narration voice and music generated for this video. #IceRoadTruckers #AlaskaHighway #Trucking