CarGurus Logo Homepage Link
  • Buy
    • Used cars
    • New cars
    • Certified pre-owned
    • Start your purchase online
    • Dealerships near me
  • Sell
    • Sell my car
    • Car values
    • Sell my car FAQs
  • Finance
    • Prequalify for financing
    • How does it work?
    • Financing FAQs
  • Research
    • Test drive reviews
    • Price trends
    • Tips & advice
    • Electric cars
    • Compare cars
  • Discover
    The latest way to shop:
    smarter research, better
    listings.
  • Saved cars & searches
  • Sign in / Register
    • My account
    • Saved searches
    • Saved cars
    • Recommended cars
    • Browsing history
    • Financing dashboard
      • United States (EN)
      • Estados Unidos (ES)
      • Canada (EN)
      • Canada (FR)
      • United Kingdom

Best MPG Diesel Cars for Sale in Douglas, WY

18 results
Douglas, WY
2020 Chevrolet Silverado 1500 RST Crew Cab 4WD

2020 Chevrolet Silverado 1500

RST Crew Cab 4WD

113,894 miles

$27,098

Great Deal
Casper, WY
44 mi away
Year:
2020
Make:
Chevrolet
Model:
Silverado 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Shadow Gray Metallic
Combined gas mileage:
26 MPG
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
113,894
Stock number:
EU163431
VIN:
1GCUYEET3LZ163431

Sponsored

2020 GMC Sierra 1500 Denali Crew Cab 4WD

2020 GMC Sierra 1500

Denali Crew Cab 4WD

73,447 miles

$41,995

Fair Deal
Certified Pre-Owned
Gillette, WY
97 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Red Quartz Tintcoat
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
73,447
Stock number:
C25360B
VIN:
1GTU9FET7LZ319151

Sponsored

2021 GMC Sierra 1500 SLE Crew Cab 4WD

2021 GMC Sierra 1500

SLE Crew Cab 4WD

94,349 miles

$29,995

Good Deal
Certified Pre-Owned
Gillette, WY
97 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Onyx Black
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
94,349
Stock number:
C26028C
VIN:
1GTU9BET7MZ163042

Sponsored

2021 GMC Sierra 1500 SLE Crew Cab 4WD

2021 GMC Sierra 1500

SLE Crew Cab 4WD

94,349 miles

$29,995

Good Deal
Certified Pre-Owned
Gillette, WY
97 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Onyx Black
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Transmission:
Automatic
Mileage:
94,349
Stock number:
C26028C
VIN:
1GTU9BET7MZ163042

2021 RAM 1500 Limited Crew Cab 4WD

2021 RAM 1500

Limited Crew Cab 4WD

94,006 miles

$34,795

Good Deal
Certified Pre-Owned
Casper, WY
48 mi away
Year:
2021
Make:
RAM
Model:
1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
260 hp 3L V6 Biodiesel
Exterior color:
Billet Silver Metallic Clearcoat
Combined gas mileage:
25 MPG
Fuel type:
Biodiesel
Interior color:
Black
Transmission:
8-Speed Automatic
Mileage:
94,006
Stock number:
9163CF
VIN:
1C6SRFHM8MN591235

2023 Chevrolet Silverado 1500 RST Crew Cab 4WD

2023 Chevrolet Silverado 1500

RST Crew Cab 4WD

45,456 miles

$43,624

Good Deal
Casper, WY
42 mi away
Year:
2023
Make:
Chevrolet
Model:
Silverado 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Radiant Red Tintcoat
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
45,456
Stock number:
PZ287578
VIN:
1GCUDEE8XPZ287578

Preparing for a close up...

Photos coming soon

2020 Chevrolet Silverado 1500

RST Crew Cab 4WD

113,894 miles

$27,098

Great Deal
Casper, WY
44 mi away
Year:
2020
Make:
Chevrolet
Model:
Silverado 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Shadow Gray Metallic
Combined gas mileage:
26 MPG
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
113,894
Stock number:
EU163431
VIN:
1GCUYEET3LZ163431

Preparing for a close up...

Photos coming soon

2022 Chevrolet Silverado 1500

Custom Trail Boss Crew Cab 4WD

111,229 miles

$31,397

Good Deal
Casper, WY
49 mi away
Year:
2022
Make:
Chevrolet
Model:
Silverado 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Black
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
111,229
Stock number:
11XD26031A
VIN:
3GCUDCET8NG524364

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

SLT Crew Cab 4WD

88,748 miles

$39,999

Good Deal
Casper, WY
42 mi away
Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
88,748
Stock number:
G7084A
VIN:
3GTUUDE80RG119493

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

Denali Crew Cab 4WD

73,442 miles

$40,490

Good Deal
Gillette, WY
97 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
White Frost Tricoat
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
73,442
Stock number:
R25085A
VIN:
1GTU9FETXMZ171790

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

Denali Crew Cab 4WD

40,036 miles

$57,995

Fair Deal
Gillette, WY
97 mi away
Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
40,036
Stock number:
C3291
VIN:
1GTUUGE89RZ160870

Preparing for a close up...

Photos coming soon

2023 GMC Sierra 1500

SLT Crew Cab 4WD

23,863 miles

$49,811

Good Deal
Casper, WY
42 mi away
Year:
2023
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
23,863
Stock number:
PG148265
VIN:
3GTUUDE84PG148265

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

19,802 miles

$59,195

Fair Deal
Gillette, WY
97 mi away
Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
19,802
Stock number:
C3289
VIN:
1GTUUEE85RZ251381

Preparing for a close up...

Photos coming soon

2020 GMC Sierra 1500

Denali Crew Cab 4WD

73,447 miles

$41,995

Fair Deal
Certified Pre-Owned
Gillette, WY
97 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Red Quartz Tintcoat
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
73,447
Stock number:
C25360B
VIN:
1GTU9FET7LZ319151

Preparing for a close up...

Photos coming soon

2024 Chevrolet Silverado 1500

LT Trail Boss Crew Cab 4WD

55,877 miles

$50,495

Fair Deal
Certified Pre-Owned
Gillette, WY
97 mi away
Year:
2024
Make:
Chevrolet
Model:
Silverado 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
White (Iridescent Pearl Tricoat)
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Gideon/Very Dark Atmosphere
Transmission:
Automatic
Mileage:
55,877
Stock number:
C26074B
VIN:
3GCUDFE80RG285993

Preparing for a close up...

Photos coming soon

2022 GMC Sierra 1500

Denali Crew Cab 4WD

81,246 miles

$44,091

Fair Deal
Casper, WY
42 mi away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Onyx Black
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
81,246
Stock number:
WT201182A
VIN:
3GTUUGET0NG510272

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

SLE Crew Cab 4WD

74,930 miles

$34,315

Fair Deal
Gillette, WY
97 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Summit White
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
74,930
Stock number:
C26027B
VIN:
3GTU9BET7MG231453

Preparing for a close up...

Photos coming soon

2020 GMC Sierra 1500

AT4 Crew Cab 4WD

101,454 miles

$38,999

Fair Deal
Casper, WY
42 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Gray (Satin Steel Metallic)
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
101,454
Stock number:
G7108A
VIN:
1GTU9EET2LZ259449

Preparing for a close up...

Photos coming soon

2021 GMC Sierra 1500

SLT Crew Cab 4WD

85,389 miles

$40,999

High Price
Casper, WY
42 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Brownstone Metallic
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
85,389
Stock number:
G7055A
VIN:
3GTU9DET1MG145180

Preparing for a close up...

Photos coming soon

2021 Chevrolet Silverado 1500

High Country Crew Cab 4WD

46,333 miles

$46,250

High Price
Certified Pre-Owned
Casper, WY
45 mi away
Year:
2021
Make:
Chevrolet
Model:
Silverado 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Cherry Red Tintcoat
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
46,333
Stock number:
P5157
VIN:
3GCUYHET1MG214508

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

Denali Crew Cab 4WD

35,648 miles

$64,999

Overpriced
Casper, WY
42 mi away
Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Atmosphere/Brownstone
Transmission:
Automatic
Mileage:
35,648
Stock number:
G6961A
VIN:
1GTUUGE84RZ154927

Preparing for a close up...

Photos coming soon

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

19,802 miles

$59,195

Fair Deal
Gillette, WY
97 mi away
Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
19,802
Stock number:
C3289
VIN:
1GTUUEE85RZ251381

Sponsored

  • Used Convertibles for Sale Under $30,000 in Douglas WY

  • Used Convertibles for Sale Under $40,000 in Douglas WY

  • Used Convertibles for Sale Under $50,000 in Douglas WY

  • Used Convertibles for Sale Under $60,000 in Douglas WY

  • Cars for Sale Under $20,000 in Douglas WY

  • Best MPG Trucks for Sale in Douglas WY

  • Best MPG Hatchbacks for Sale in Douglas WY

  • Best MPG Wagons for Sale in Douglas WY

  • Best MPG Coupes for Sale in Douglas WY

  • Best MPG Convertibles for Sale in Douglas WY

  • Hybrid Sedans for Sale in Douglas WY

  • Used Coupes for Sale Under $40,000 in Douglas WY

  • Best MPG Diesel Cars for Sale in Casper WY

  • Best MPG Diesel Cars for Sale in Laramie WY

  • Best MPG Diesel Cars for Sale in Gillette WY

  • Best MPG Diesel Cars for Sale in Cheyenne WY

  • Best MPG Diesel Cars for Sale in Rapid City SD

  • Best MPG Diesel Cars for Sale in Fort Collins CO

  • Best MPG Diesel Cars for Sale in Longmont CO

  • Best MPG Diesel Cars for Sale in Denver CO

  • Best MPG Diesel Cars for Sale in Castle Rock CO

  • All Used Cars

  • Manual Transmission Cars

  • Luxury Cars

  • Cars with Red Interior

  • Cheap Manual Cars

  • Hybrid Cars

  • Sports Cars

  • Electric SUVs

  • Cheap Trucks

  • Small Cars

  • Third Row SUVs

  • Three Quarter Ton Trucks

  • Lifted Trucks

  • Manual Transmission Trucks

  • Diesel Trucks

  • Hybrid SUVs

  • Dually Trucks

  • One Ton Trucks

  • Cheap SUVs

  • Lifted Ford Trucks

  • 4x4 Trucks

  • Work Trucks

  • AWD SUVs

  • Ford Trucks

  • Chevrolet Trucks

  • Toyota Trucks

  • Trucks Under $10,000

  • Cars Under $15,000

  • Sports Cars Under $20,000

  • Trucks Under $20,000

  • Used Sedans for Sale with Low Mileage

  • Used SUVs / Crossovers for Sale with Low Mileage

  • Used Hatchbacks for Sale with Low Mileage

  • Used Convertibles for Sale with Low Mileage

  • Used Vans for Sale with Low Mileage

  • Used Minivans for Sale with Low Mileage

  • Used Pickup Trucks for Sale with Low Mileage

  • Used Coupes for Sale with Low Mileage

  • Used Wagons for Sale with Low Mileage

  • Vista Toyota

  • Vista Nissan

  • Greiner Ford of Casper

  • 307 Motors

  • Quality Auto Of Casper

Connect with us
Download our app
Download on the App Store Get it on Google Play
  • Company
  • About CarGurus
  • Our team
  • Press
  • Investor relations
  • Price trends
  • Careers
  • Advertise with CarGurus
  • For dealers
  • Dealer signup
  • Dealer resources
  • Terms
  • Terms of use
  • Privacy policy
  • Interest-based ads
  • Security
  • Help
  • Help center
  • Contact us
Click for the BBB Business Review of this Auto Listing Service in Cambridge MA
    • United States (EN)
    • Estados Unidos (ES)
    • Canada (EN)
    • Canada (FR)
    • United Kingdom

© 2026 CarGurus, Inc., All Rights Reserved.