120 Forest Service, 44 BLM and 15 National Park Service. 122 take reservations
Winter winds the State Climate Office calls frequent 5
30 to 40 mph
With gusts to 50 or 60
Diesel in the cold and the thin air
Wyoming’s mean elevation is about 6,700 feet and its paved passes reach 10,947. Winter is long: snow usually shuts the top of the Snowy Range road from about mid-November until plows reopen it in May. A diesel specialist here should be at ease with cold starts, winter fuel and how an emissions system behaves on long, slow climbs in thin air.
If the truck came from somewhere low and warm, say so. Distances are long as well, so ask about fuel filtration and which spares are worth carrying.
Modern diesels make strong torque and return good range, which is why so many expedition vehicles run them. They are also tightly managed by emissions systems that do not forgive neglect or bad fuel. A diesel specialist has the scan tools to read what the engine is reporting and the experience to tell a failing sensor from a failing part.
Typical work
01Fuel system diagnosis and repair
02Turbocharger and boost faults
03Diesel particulate filter, exhaust fluid and EGR diagnosis and repair
04Cooling system and glow plugs
05Scheduled maintenance at the intervals these engines need
How to choose a diesel shop
The tools and the attitude toward emissions faults tell you most of what you need to know.
01Ask what diagnostic equipment they have for your make. For a Sprinter that means Mercedes-capable tools, not a generic code reader.
02Ask how they approach emissions faults. The right answer is diagnosis and repair. Removing or defeating emissions equipment on a road vehicle is illegal in the United States, and a reputable shop will not offer it.
03Ask what they recommend for fuel filtration in the places you travel.
04Ask what they see fail on your engine and at what mileage. Specialists know the pattern.
What to have ready before you ask for a quote
Codes and context save diagnostic time.
01Year, engine and mileage
02Warning lights or fault codes, and when they appear
03Recent service history
04Any tuning or modifications
05Where you are headed next
Questions people ask
Why does my diesel go into limp mode?
Limp mode is the engine protecting itself after a fault, often in the emissions, boost or fuel systems. The stored codes tell a specialist where to start. Clearing the code without fixing the cause only moves the breakdown to a worse place.
Is a diesel right for overlanding?
Diesels offer range and torque under load, which suits heavy vehicles and long distances. They also cost more to maintain, and their emissions systems need clean fuel and regular highway running. It is a fair trade for many travelers and the wrong one for some.
Can I find diesel service far from a dealer?
Yes, but independent shops with the right tools are spread thin. Tell us where you are based and where you travel.
How high is Wyoming?
From Sheridan at 3,748 feet to Gannett Peak at 13,804.
Altitude decides what your engine, your brakes and your lungs have to work with, and how late in the year the passes open.
2,0004,0006,0008,00010,00012,00014,000
Feet above sea level
Towns
PinedaleSouth end of the Wyoming Centennial Scenic Byway, on US 191 under the Wind River Range. BLM and Bridger-Teton offices.7,179 ft
LaramieOn I-80. Highway 130 runs 30 miles west to Centennial, where the Snowy Range Scenic Byway enters the forest.7,165 ft
KemmererBLM field office and a Bridger-Teton ranger district. The Big Spring Scenic Backway runs from here to Cokeville.6,955 ft
DuboisNorth end of the Wyoming Centennial Scenic Byway, on US 26/287 below Togwotee Pass. Shoshone National Forest district office.6,934 ft
RawlinsOn I-80. Its BLM field office manages the Seminoe to Alcova byway, which leaves the interstate at Sinclair, exit 219.6,796 ft
SaratogaWest end of the Snowy Range Scenic Byway. The Forest Service district office here covers the Sierra Madre and the west side of the Snowy Range.6,789 ft
Rock SpringsOn I-80 with a BLM field office. The road to the Killpecker Sand Dunes leaves US 191 to the north, and the BLM’s 24-mile Pilot Butte Wild Horse Scenic Tour starts here.6,388 ft
JacksonBase for Grand Teton. The highway north to Flagg Ranch is plowed all winter. The Forest Service says camping nearby often fills by late morning in summer.6,238 ft
CheyenneState capital, where I-25 crosses I-80. The BLM’s Wyoming State Office is here.6,092 ft
LanderAt the foot of the east slope of the Wind River Range. Shoshone National Forest district office and a BLM field office.5,356 ft
CasperBLM field office. The South Bighorn/Red Wall byway starts 13 miles northwest on US 20/26, and Alcova is 30 miles out on Highway 220.5,105 ft
CodyShoshone National Forest headquarters, about 50 miles from Yellowstone’s East Entrance. The Chief Joseph byway leaves Highway 120 sixteen miles north.5,000 ft
BuffaloEast end of the Cloud Peak Skyway, US 16, over Powder River Pass. Full services and a BLM field office.4,640 ft
WorlandHome of the BLM field office that manages Red Gulch/Alkali. Full services west of the Cloud Peak Skyway.4,065 ft
GreybullAll services for the Red Gulch/Alkali byway. The turnoff is 11 miles east on US 14.3,794 ft
SheridanFull services for the Big Horn Scenic Byway, US 14, which climbs west from Dayton to Granite Pass.3,748 ft
Passes, high roads and summits
Gannett PeakThe highest point in Wyoming, in the Wind River Range. No road to the top13,804 ft
Cloud PeakThe highest point in the Bighorn National Forest, by the forest’s figure13,167 ft
Medicine Bow PeakAbove Snowy Range Pass on Highway 13012,013 ft
Beartooth PassBeartooth Highway (US 212): Red Lodge, Montana, to Cooke City and Yellowstone’s Northeast Entrance, across the northwest corner of Wyoming10,947 ft
Snowy Range PassSnowy Range Scenic Byway (WYO 130): Centennial to Saratoga, across the Medicine Bow Mountains10,847 ft
Powder River PassCloud Peak Skyway (US 16): Buffalo to Ten Sleep, across the southern Bighorns9,666 ft
Togwotee PassUS 26/287 between Dubois and Moran Junction, on the Wyoming Centennial Scenic Byway9,658 ft
Granite PassTop of the Big Horn Scenic Byway, US 14 between Shell and Dayton9,033 ft
Pass, road and summit elevations are the figures published by the agency that manages them. Town elevations are the town’s or county’s own
figure where it publishes an exact one; the rest are from the U.S. Geological Survey (3D Elevation Program at the place’s official coordinates),
retrieved September 18, 2026. Every source is listed at the foot of the page.
Free build quotes
Looking for diesel specialists in Wyoming? Tell us about the project and get free quotes.
