Best MPG Diesel Cars for Sale in Union, IL

2022 Jeep Wrangler

Unlimited Willys 4WD

61,223 miles

$27,989

Good Deal

Johnson Creek, WI

61 mi away

Year:: 2022
Make:: Jeep
Model:: Wrangler
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 260 hp 3L V6 Diesel
Exterior color:: Black Clearcoat
Combined gas mileage:: 25 MPG
Fuel type:: Diesel
Interior color:: Black
Transmission:: 8-Speed Automatic
Mileage:: 61,223
Stock number:: 9467
VIN:: 1C4HJXDM4NW209476

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2022 Chevrolet Silverado 1500

RST Crew Cab 4WD

61,899 miles

$35,529

Good Deal

Certified Pre-Owned

Janesville, WI

41 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:: Shadow Gray Metallic
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 61,899
Stock number:: 25906B
VIN:: 1GCUYEET0NZ218663

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2020 GMC Sierra 1500

Elevation Crew Cab 4WD

100,716 miles

$27,990

Good Deal

Streamwood, IL

21 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:: Black
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 100,716
Stock number:: B3861A
VIN:: 3GTU9CET1LG181654

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2024 Chevrolet Silverado 1500

RST Crew Cab 4WD

26,216 miles

$42,988

Great Deal

Glenview, IL

38 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:: Red
Combined gas mileage:: 25 MPG
Fuel type:: Diesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 26,216
Stock number:: P8110VW
VIN:: 1GCUDEE85RZ258377

2023 RAM 1500

Laramie Crew Cab 4WD

29,410 miles

$39,998

Great Deal

Naperville, IL

35 mi away

Year:: 2023
Make:: RAM
Model:: 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 260 hp 3L V6 Biodiesel
Exterior color:: Diamond Black Crystal Pearlcoat
Combined gas mileage:: 25 MPG
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: 8-Speed Automatic
Mileage:: 29,410
Stock number:: NU3143
VIN:: 1C6SRFJM8PN555561

2021 GMC Sierra 1500

Elevation Crew Cab 4WD

125,456 miles

$26,450

Good Deal

Hoffman Estates, IL

24 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
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 125,456
Stock number:: M26028A
VIN:: 1GTU9CETXMZ174509

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2020 GMC Sierra 1500

AT4 Crew Cab 4WD

51,516 miles

$40,789

Good Deal

Ottawa, IL

62 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:: Pacific Blue Metallic
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Jet Black With Kalahari Accents
Transmission:: Automatic
Mileage:: 51,516
Stock number:: 75162
VIN:: 1GTU9EET3LZ337981

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2022 RAM 1500

Limited Crew Cab 4WD

49,110 miles

$39,490

Good Deal

Elgin, IL

19 mi away

Year:: 2022
Make:: RAM
Model:: 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 260 hp 3L V6 Biodiesel
Exterior color:: Diamond Black Crystal Pearlcoat
Combined gas mileage:: 25 MPG
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: 8-Speed Automatic
Mileage:: 49,110
Stock number:: 14491A
VIN:: 1C6SRFHM8NN181424

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2020 GMC Sierra 1500

SLT Crew Cab 4WD

103,672 miles

$28,595

Great Deal

McHenry, IL

14 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:: Summit White
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 103,672
Stock number:: M260062A
VIN:: 3GTU9DET3LG203398

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2021 Chevrolet Silverado 1500

LTZ Crew Cab 4WD

113,463 miles

$26,986

Great Deal

Cedarburg, WI

80 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:: Summit White
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 113,463
Stock number:: 25196A
VIN:: 3GCUYGET0MG405671

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2024 Chevrolet Silverado 1500

LT Trail Boss Crew Cab 4WD

14,325 miles

$53,975

Fair Deal

Walnut, IL

72 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:: Gray
Combined gas mileage:: 25 MPG
Fuel type:: Diesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 14,325
Stock number:: 4442A
VIN:: 3GCUDFE85RG266386

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2022 Chevrolet Silverado 1500

RST Crew Cab 4WD

24,234 miles

$40,499

Good Deal

Certified Pre-Owned

Cedarburg, WI

80 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:: Summit White
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 24,234
Stock number:: 25385A
VIN:: 1GCUYEET8NZ200380

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2021 Jeep Gladiator

Sport Crew Cab 4WD

86,571 miles

$24,990

Good Deal

Streamwood, IL

21 mi away

Year:: 2021
Make:: Jeep
Model:: Gladiator
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 260 hp 3L V6 Diesel
Exterior color:: Gray
Combined gas mileage:: 25 MPG
Fuel type:: Diesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 86,571
Stock number:: B3856
VIN:: 1C6JJTAM2ML549277

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2021 GMC Sierra 1500

Denali Crew Cab 4WD

75,788 miles

$38,300

Fair Deal

Palatine, IL

25 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:: Sky
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 75,788
Stock number:: PCP10025
VIN:: 1GTU9FET9MZ159534

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2025 Chevrolet Silverado 1500

ZR2 Crew Cab 4WD

4,474 miles

$60,999

Good Deal

Saukville, WI

86 mi away

Year:: 2025
Make:: Chevrolet
Model:: Silverado 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior color:: Black
Combined gas mileage:: 21 MPG
Fuel type:: Diesel
Interior color:: Gray
Transmission:: Automatic
Mileage:: 4,474
Stock number:: 24605A
VIN:: 3GCUKHE80SG300788

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2021 GMC Sierra 1500

AT4 Crew Cab 4WD

79,673 miles

$37,995

Good Deal

Certified Pre-Owned

Milwaukee, WI

63 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 with Kalahari accents Leather
Transmission:: Automatic
Mileage:: 79,673
Stock number:: A25193B
VIN:: 1GTU9EET4MZ143266

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2022 Chevrolet Silverado 1500

RST Crew Cab 4WD

25,075 miles

$39,988

Great Deal

Dekalb, IL

22 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:: Gideon/Very Dark Atmosphere
Transmission:: Automatic
Mileage:: 25,075
Stock number:: 25PC5-4
VIN:: 1GCUDEET9NZ618085

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2024 Chevrolet Silverado 1500

ZR2 Crew Cab 4WD

13,608 miles

$57,245

Good Deal

Cedarburg, WI

80 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:: Red Hot
Combined gas mileage:: 21 MPG
Fuel type:: Diesel
Interior color:: Jet Black/Graystone
Transmission:: Automatic
Mileage:: 13,608
Stock number:: 6520
VIN:: 3GCUDHE88RG383214

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2023 Chevrolet Suburban

High Country 4WD

71,232 miles

$56,996

Fair Deal

Certified Pre-Owned

Milwaukee, WI

60 mi away

Year:: 2023
Make:: Chevrolet
Model:: Suburban
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 277 hp 3L I6 Diesel
Exterior color:: Black
Combined gas mileage:: 23 MPG
Fuel type:: Diesel
Interior color:: Jet Black/Mocha
Transmission:: Automatic
Mileage:: 71,232
Stock number:: C19360NC
VIN:: 1GNSKGKT5PR417260

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2022 RAM 1500

Rebel Crew Cab 4WD

47,143 miles

$39,588

Good Deal

Crystal Lake, IL

12 mi away

Year:: 2022
Make:: RAM
Model:: 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 260 hp 3L V6 Biodiesel
Exterior color:: Bright White Clearcoat
Combined gas mileage:: 25 MPG
Fuel type:: Biodiesel
Interior color:: Red/Black
Transmission:: 8-Speed Automatic
Mileage:: 47,143
Stock number:: P1164
VIN:: 1C6SRFLM4NN394927

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2025 Chevrolet Silverado 1500

LT Trail Boss Crew Cab 4WD

10,730 miles

$53,999

Good Deal

Certified Pre-Owned

Naperville, IL

36 mi away

Year:: 2025
Make:: Chevrolet
Model:: Silverado 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 3L I6 Diesel
Exterior color:: Cypress Gray
Combined gas mileage:: 23 MPG
Fuel type:: Diesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 10,730
Stock number:: K6987
VIN:: 3GCUKFE89SG246184

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2021 GMC Sierra 1500

Denali Crew Cab 4WD

99,557 miles

$33,769

Good Deal

Belleville, WI

69 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:: Cayenne Red Tintcoat
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 99,557
Stock number:: 130885B
VIN:: 3GTU9FET6MG392786

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2020 RAM 1500

Laramie Crew Cab 4WD

65,756 miles

$30,987

Great Deal

Gurnee, IL

31 mi away

Year:: 2020
Make:: RAM
Model:: 1500
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 260 hp 3L V6 Biodiesel
Exterior color:: Diamond Black Crystal Pearlcoat
Combined gas mileage:: 25 MPG
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: 8-Speed Automatic
Mileage:: 65,756
Stock number:: GM29843R
VIN:: 1C6SRFJM6LN399630

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2022 GMC Sierra 1500

SLT Crew Cab 4WD

64,056 miles

$40,995

Fair Deal

Mount Pleasant, WI

45 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:: Titanium Rush Metallic
Combined gas mileage:: 24 MPG
Fuel type:: Diesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 64,056
Stock number:: P12713
VIN:: 3GTUUDET3NG636124

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