2018 Chevrolet Silverado C15

Truck Flex Fuel
Chevrolet Silverado C15 2018
20MPG Combined
5 Trims
← 2017 2018
Updated February 27, 2026

Looking at the 2018 Chevrolet Silverado C15? This Truck offers 17–20 combined MPG depending on trim and comes with 5 available configurations. We break down the specs, safety data, and how it compares to the competition.

2018 Chevrolet Silverado C15 Specifications

SpecValue
Combined MPG17–20 combined MPG depending on trim
City MPG18
Highway MPG24
Body StyleTruck
Fuel TypeFlex Fuel
DriveRWD
Available Trims5

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto18/24/204.3L 6cylAutomatic 6-spd
Auto16/22/185.3L 8cylAutomatic 8-spd
Auto16/23/195.3L 8cylAutomatic 6-spd
Auto16/23/195.3L 8cylAutomatic 6-spd
Auto15/21/176.2L 8cylAutomatic 8-spd

Annual Fuel Cost

Based on EPA estimates, the 2018 Chevrolet Silverado C15 costs approximately $2,540 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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