Based on data from 313 vehicles, 24,225 fuel-ups and 8,412,420 miles of driving, the 2021 Chevrolet Silverado 1500 gets a combined Avg MPG of 18.98 with a 0.08 MPG margin of error.

Any Engine Type 2.7L L4 GAS (33) 3.0L L6 DIESEL (120) 4.3L V6 GAS (5) 5.3L V8 FLEX (3) 5.3L V8 GAS (120) 6.2L V8 GAS (26) V6 GAS (1) V8 GAS (3) Any Body Style Extended Cab Pickup (5) Crew Cab Pickup (82) Cab & Chassis (1) Cab & Chassis - Crew Cab (1) Any Submodel WT (4) Custom Trail Boss (11) High Country (15) Custom (24) LTZ (36) LT Trail Boss (54) LT (68) RST (101)

Below you can see a distribution of the fuel-ups with 161 outliers (0.66%) removed.

Following shows the average MPG of each of the 313 vehicles in the system.

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• 2021 Silverado 1500

  2021 Chevrolet Silverado 1500 LT Trail Boss 5.3L V8 GAS Automatic 10 Speed
  Added Aug 2023 • 68 Fuel-ups

  Property of afinchatl

• 15.9 Avg MPG

• 6.2 High Country

  2021 Chevrolet Silverado 1500 High Country 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added May 2022 • 122 Fuel-ups

  Property of bsneed

• 18.9 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 RST 3.0L L6 DIESEL Automatic 10 Speed
  Added Feb 2022 • 85 Fuel-ups

  Property of mgleewood

• 23.9 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 LT 3.0L L6 DIESEL Automatic 10 Speed
  Added Feb 2025 • 3 Fuel-ups

  Property of lalderman21

• 21.1 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 LT 5.3L V8 GAS Automatic 10 Speed
  Added Feb 2022 • 125 Fuel-ups

  Property of tjohnson

• 14.8 Avg MPG

• Silverado 1500

  2021 Chevrolet Silverado 1500 LT 5.3L V8 GAS Automatic 8 Speed
  Added Aug 2023 • 216 Fuel-ups

  Property of jeffbrit

• 14.4 Avg MPG

• Tombstone

  2021 Chevrolet Silverado 1500 LT Trail Boss 5.3L V8 GAS Automatic 10 Speed
  Added Dec 2021 • 152 Fuel-ups

  Property of matthoef

• 14.6 Avg MPG

• Chevrolet Trail Boss

  2021 Chevrolet Silverado 1500 LT Trail Boss 6.2L V8 GAS Automatic 10 Speed
  Added Mar 2024 • 35 Fuel-ups

  Property of ejsandven

• 17.6 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 Custom Trail Boss 5.3L V8 GAS Automatic 6 Speed
  Added Mar 2024 • 82 Fuel-ups

  Property of swever

• 15.8 Avg MPG

• ‘21 Silverado

  2021 Chevrolet Silverado 1500 LT Trail Boss 5.3L V8 GAS Automatic 10 Speed
  Added May 2022 • 106 Fuel-ups

  Property of kj1544

• 17.2 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 LT Trail Boss 5.3L V8 GAS Automatic 10 Speed
  Added May 2021 • 278 Fuel-ups

  Property of mako614

• 16.9 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 RST 3.0L L6 DIESEL Automatic 10 Speed
  Added Sep 2024 • 65 Fuel-ups

  Property of Zachatack

• 28.5 Avg MPG

• ‘21 High Country

  2021 Chevrolet Silverado 1500 High Country 6.2L V8 GAS Automatic 10 Speed
  Added Jan 2025 • 17 Fuel-ups

  Property of CABonds

• 17.5 Avg MPG

• A Silverado TB

  2021 Chevrolet Silverado 1500 LT Trail Boss 5.3L V8 GAS Automatic 10 Speed
  Added Aug 2021 • 167 Fuel-ups

  Property of lbkchuckwagon

• 16.8 Avg MPG

• 2021 Silverado

  2021 Chevrolet Silverado 1500 LT Trail Boss 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
  Added Aug 2021 • 119 Fuel-ups

  Property of dracosshadow

• 16.3 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 RST 3.0L L6 DIESEL Automatic 10 Speed
  Added Sep 2021 • 185 Fuel-ups

  Property of jimmycee

• 21.9 Avg MPG

• The Beast II

  2021 Chevrolet Silverado 1500 LT Trail Boss 5.3L V8 GAS Automatic 10 Speed
  Added Apr 2021 • 82 Fuel-ups

  Property of JPouchet

• 17.8 Avg MPG

• Big K's Baby D

  2021 Chevrolet Silverado 1500 High Country 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
  Added Jan 2021 • 120 Fuel-ups

  Property of Kathalle

• 23.1 Avg MPG

• Silverado 1500

  2021 Chevrolet Silverado 1500 LT 5.3L V8 GAS Automatic 8 Speed
  Added Feb 2021 • 246 Fuel-ups

  Property of Mavis500

• 16.9 Avg MPG

• My Silverado 1500

  2021 Chevrolet Silverado 1500 LT 3.0L L6 DIESEL Automatic 10 Speed
  Added Jul 2024 • 16 Fuel-ups

  Property of GrampzG

• 26.5 Avg MPG

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