2021 Chevrolet Silverado 4WD TrailBoss MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2021 Chevrolet Silverado 4WD TrailBoss.

The 2021 Chevrolet Silverado 4WD TrailBoss has 8 model options: Automatic 6-spd 8-cyl, 5.3 L, Automatic 10-spd 8-cyl, 5.3 L, Automatic 6-spd 6-cyl, 4.3 L, Automatic 10-spd 8-cyl, 6.2 L, Automatic 10-spd 8-cyl, 6.2 L, Automatic 6-spd 8-cyl, 5.3 L, Automatic 10-spd 8-cyl, 6.2 L and Automatic 10-spd 8-cyl, 5.3 L.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 6-spd 8-cyl, 5.3 L runs on regular gasoline and is in the Standard Pickup Trucks 4WD car class.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 5.3 L runs on regular gasoline and is in the Standard Pickup Trucks 4WD car class.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 6-spd 6-cyl, 4.3 L runs on regular gasoline and is in the Standard Pickup Trucks 4WD car class.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 6.2 L runs on premium gasoline and is in the Standard Pickup Trucks 4WD car class.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 6.2 L runs on premium gasoline and is in the Standard Pickup Trucks 4WD car class.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 6-spd 8-cyl, 5.3 L runs on regular gasoline and is in the Standard Pickup Trucks 4WD car class.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 6.2 L runs on premium gasoline and is in the Standard Pickup Trucks 4WD car class.

The 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 5.3 L runs on regular gasoline and is in the Standard Pickup Trucks 4WD car class.

🛣 How Many Miles per Gallon (MPG) Does a 2021 Chevrolet Silverado 4WD TrailBoss Get?

Across all models, the combined average MPG for the 2021 Chevrolet Silverado 4WD TrailBoss is 17 miles per gallon.

The table below breaks down the MPG for each model option:

Model Option Combined MPG City MPG Highway MPG
Automatic 6-spd 8-cyl, 5.3 L 16 14 18
Automatic 10-spd 8-cyl, 5.3 L 18 16 21
Automatic 6-spd 6-cyl, 4.3 L 16 14 18
Automatic 10-spd 8-cyl, 6.2 L 17 15 19
Automatic 10-spd 8-cyl, 6.2 L 17 15 19
Automatic 6-spd 8-cyl, 5.3 L 15 13 18
Automatic 10-spd 8-cyl, 6.2 L 16 14 19
Automatic 10-spd 8-cyl, 5.3 L 17 15 21

💵 What is the Average Yearly Fuel Cost for a 2021 Chevrolet Silverado 4WD TrailBoss?

The average fuel costs for all models of the 2021 Chevrolet Silverado 4WD TrailBoss is $4,056.

The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

Comparing a 2021 Chevrolet Silverado 4WD TrailBoss to an average vehicle over 5 years, you will spend $8,781 more on fuel.

The table below shows the fuel costs and 5-year save/spend for each model option:

Model Option Fuel Cost 5-Year Save/Spend
Automatic 6-spd 8-cyl, 5.3 L $3,900 spend $8,000 more
Automatic 10-spd 8-cyl, 5.3 L $3,500 spend $6,000 more
Automatic 6-spd 6-cyl, 4.3 L $3,900 spend $8,000 more
Automatic 10-spd 8-cyl, 6.2 L $4,350 spend $10,250 more
Automatic 10-spd 8-cyl, 6.2 L $4,350 spend $10,250 more
Automatic 6-spd 8-cyl, 5.3 L $4,150 spend $9,250 more
Automatic 10-spd 8-cyl, 6.2 L $4,600 spend $11,500 more
Automatic 10-spd 8-cyl, 5.3 L $3,700 spend $7,000 more

🛢 How Many Barrels of Petroleum Does a 2021 Chevrolet Silverado 4WD TrailBoss Consume?

Across all models, the average number barrels of petroleum that the 2021 Chevrolet Silverado 4WD TrailBoss will consume in one year is 19 barrels.

The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.

Model Option Barrels
Automatic 6-spd 8-cyl, 5.3 L 19
Automatic 10-spd 8-cyl, 5.3 L 17
Automatic 6-spd 6-cyl, 4.3 L 19
Automatic 10-spd 8-cyl, 6.2 L 18
Automatic 10-spd 8-cyl, 6.2 L 18
Automatic 6-spd 8-cyl, 5.3 L 20
Automatic 10-spd 8-cyl, 6.2 L 19
Automatic 10-spd 8-cyl, 5.3 L 18

💨 How Many Grams of CO2 Does a 2021 Chevrolet Silverado 4WD TrailBoss Emit?

The 2021 Chevrolet Silverado 4WD TrailBoss will emit an average of about 8,137,500 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 277 trees would be needed to offset emissions from the 2021 Chevrolet Silverado 4WD TrailBoss.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 8 2021 Chevrolet Silverado 4WD TrailBoss model options.

Automatic 6-spd 8-cyl, 5.3 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 6-spd 8-cyl, 5.3 L:

City MPG 14
Highway MPG 18
Combined MPG 16
Save/Spend vs Average Car Spend $8,000
Fuel Cost $3,900
Fuel Type 1 Regular
Barrels of Petroleum 19
Grams of CO2 8,400,000
Trees Needed to Offset 400
Drive 4-Wheel Drive
Cylinders 8
Transmission Automatic 6-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? No
Supercharged? No
Turbocharged? No

Automatic 10-spd 8-cyl, 5.3 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 5.3 L:

City MPG 16
Highway MPG 21
Combined MPG 18
Save/Spend vs Average Car Spend $6,000
Fuel Cost $3,500
Fuel Type 1 Regular
Barrels of Petroleum 17
Grams of CO2 7,410,000
Trees Needed to Offset 353
Drive 4-Wheel Drive
Cylinders 8
Transmission Automatic 10-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? Yes
Supercharged? No
Turbocharged? No

Automatic 6-spd 6-cyl, 4.3 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 6-spd 6-cyl, 4.3 L:

City MPG 14
Highway MPG 18
Combined MPG 16
Save/Spend vs Average Car Spend $8,000
Fuel Cost $3,900
Fuel Type 1 Regular
Barrels of Petroleum 19
Grams of CO2 8,400,000
Trees Needed to Offset 400
Drive 4-Wheel Drive
Cylinders 6
Transmission Automatic 6-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? No
Supercharged? No
Turbocharged? No

Automatic 10-spd 8-cyl, 6.2 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 6.2 L:

City MPG 15
Highway MPG 19
Combined MPG 17
Save/Spend vs Average Car Spend $10,250
Fuel Cost $4,350
Fuel Type 1 Premium
Barrels of Petroleum 18
Grams of CO2 7,830,000
Trees Needed to Offset 373
Drive 4-Wheel Drive
Cylinders 8
Transmission Automatic 10-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? Yes
Supercharged? No
Turbocharged? No

Automatic 10-spd 8-cyl, 6.2 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 6.2 L:

City MPG 15
Highway MPG 19
Combined MPG 17
Save/Spend vs Average Car Spend $10,250
Fuel Cost $4,350
Fuel Type 1 Premium
Barrels of Petroleum 18
Grams of CO2 7,995,000
Trees Needed to Offset 381
Drive 4-Wheel Drive
Cylinders 8
Transmission Automatic 10-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? Yes
Supercharged? No
Turbocharged? No

Automatic 6-spd 8-cyl, 5.3 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 6-spd 8-cyl, 5.3 L:

City MPG 13
Highway MPG 18
Combined MPG 15
Save/Spend vs Average Car Spend $9,250
Fuel Cost $4,150
Fuel Type 1 Regular
Barrels of Petroleum 20
Grams of CO2 8,895,000
Trees Needed to Offset 424
Drive 4-Wheel Drive
Cylinders 8
Transmission Automatic 6-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? No
Supercharged? No
Turbocharged? No

Automatic 10-spd 8-cyl, 6.2 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 6.2 L:

City MPG 14
Highway MPG 19
Combined MPG 16
Save/Spend vs Average Car Spend $11,500
Fuel Cost $4,600
Fuel Type 1 Premium
Barrels of Petroleum 19
Grams of CO2 8,325,000
Trees Needed to Offset 396
Drive 4-Wheel Drive
Cylinders 8
Transmission Automatic 10-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? No
Supercharged? No
Turbocharged? No

Automatic 10-spd 8-cyl, 5.3 L

The table below contains all of the details we have for the 2021 Chevrolet Silverado 4WD TrailBoss Automatic 10-spd 8-cyl, 5.3 L:

City MPG 15
Highway MPG 21
Combined MPG 17
Save/Spend vs Average Car Spend $7,000
Fuel Cost $3,700
Fuel Type 1 Regular
Barrels of Petroleum 18
Grams of CO2 7,845,000
Trees Needed to Offset 374
Drive 4-Wheel Drive
Cylinders 8
Transmission Automatic 10-spd
Vehicle Class Standard Pickup Trucks 4WD
Start/Stop? No
Supercharged? No
Turbocharged? No

Disclaimer

Ratings were provided by the manufacturer to the U.S. Department of Energy, which is where we sourced the data. Be advised that manufacturers may have upgraded, downgraded, or changed these ratings following the compilation of this data.

MPG Buddy does not guarantee the accuracy of this data, nor are we liable for any decisions made by referencing this data. Make sure to contact the specific car manufacturer to confirm accuracy.

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