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Most Fuel-Efficient Diesel Cars and Trucks in 2026

Ordered by combined MPG, the official EPA figure from fueleconomy.gov: the higher, the further on a gallon.

Diesel cars and trucks by MPG: the top 10 side by side

CarCombined MPGFuel a yearModel yearKind of car
01 2025 Chevrolet Silverado 2WD26 MPG$3,7002025Pickup · Rear-Wheel Drive · Diesel
02 2025 GMC Sierra 2WD26 MPG$3,7002025Pickup · Rear-Wheel Drive · Diesel
03 2026 Chevrolet Silverado 2WD25 MPG$3,8502026Pickup · Rear-Wheel Drive · Diesel
04 2026 GMC Sierra 2WD25 MPG$3,8502026Pickup · Rear-Wheel Drive · Diesel
05 2025 Chevrolet Tahoe 2WD24 MPG$4,0002025SUV · Rear-Wheel Drive · Diesel
06 2026 Chevrolet Tahoe 2WD24 MPG$4,0002026SUV · Rear-Wheel Drive · Diesel
07 2027 Chevrolet Tahoe 2WD24 MPG$4,0002027SUV · Rear-Wheel Drive · Diesel
08 2025 Chevrolet Silverado 4WD24 MPG$4,0002025Pickup · 4-Wheel Drive · Diesel
09 2025 GMC Sierra 4WD24 MPG$4,0002025Pickup · 4-Wheel Drive · Diesel
10 2026 Chevrolet Silverado (with Sport Mode) 4WD24 MPG$4,0002026Pickup · 4-Wheel Drive · Diesel
  1. 01

    2025 Chevrolet Silverado 2WD

    Pickup · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 23 city · 29 hwy
    Combined MPG· $3,700 fuel a year26 MPG
    $3,700fuel a year
  2. 02

    2025 GMC Sierra 2WD

    Pickup · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 23 city · 29 hwy
    Combined MPG· $3,700 fuel a year26 MPG
    $3,700fuel a year
  3. 03

    2026 Chevrolet Silverado 2WD

    Pickup · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 23 city · 28 hwy
    Combined MPG· $3,850 fuel a year25 MPG
    $3,850fuel a year
  4. 04

    2026 GMC Sierra 2WD

    Pickup · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 23 city · 28 hwy
    Combined MPG· $3,850 fuel a year25 MPG
    $3,850fuel a year
  5. 05

    2025 Chevrolet Tahoe 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 26 hwy
    Combined MPG· $4,000 fuel a year24 MPG
    $4,000fuel a year

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  7. 06

    2026 Chevrolet Tahoe 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 26 hwy
    Combined MPG· $4,000 fuel a year24 MPG
    $4,000fuel a year
  8. 07

    2027 Chevrolet Tahoe 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 26 hwy
    Combined MPG· $4,000 fuel a year24 MPG
    $4,000fuel a year
  9. 08

    2025 Chevrolet Silverado 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 26 hwy
    Combined MPG· $4,000 fuel a year24 MPG
    $4,000fuel a year
  10. 09

    2025 GMC Sierra 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 26 hwy
    Combined MPG· $4,000 fuel a year24 MPG
    $4,000fuel a year
  11. 10

    2026 Chevrolet Silverado (with Sport Mode) 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 26 hwy
    Combined MPG· $4,000 fuel a year24 MPG
    $4,000fuel a year
  12. 11

    2026 GMC Sierra 4WD with Sport Mode

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 26 hwy
    Combined MPG· $4,000 fuel a year24 MPG
    $4,000fuel a year
  13. 12

    2025 Chevrolet Suburban 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  14. 13

    2025 GMC Yukon 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  15. 14

    2025 GMC Yukon XL 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  16. 15

    2026 Chevrolet Suburban 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  17. 16

    2026 GMC Yukon 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  18. 17

    2026 GMC Yukon XL 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  19. 18

    2027 Chevrolet Suburban 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  20. 19

    2027 GMC Yukon 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  21. 20

    2027 GMC Yukon XL 2WD

    SUV · Rear-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 26 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  22. 21

    2025 Chevrolet Silverado 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 25 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  23. 22

    2026 Chevrolet Silverado 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 22 city · 25 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  24. 23

    2026 Chevrolet Silverado Mud Terrain Tires 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 24 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  25. 24

    2025 Chevrolet Silverado Mud Terrain Tires 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 24 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year
  26. 25

    2025 GMC Sierra Mud Terrain Tires 4WD

    Pickup · 4-Wheel Drive · Diesel

    3.0 L 6-cyl turbo 21 city · 24 hwy
    Combined MPG· $4,150 fuel a year23 MPG
    $4,150fuel a year

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