2018 Honda Civic Si 2Dr

Compact Sedan Premium
Honda Civic Si 2Dr 2018
32MPG Combined
1 Trim
← 2017 2018
Updated February 27, 2026

Get the full picture on the 2018 Honda Civic Si 2Dr. As a Compact Sedan, it achieves 32 combined MPG and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.

2018 Honda Civic Si 2Dr Specifications

SpecValue
Combined MPG32 combined MPG
City MPG28
Highway MPG38
Body StyleCompact Sedan
Fuel TypePremium
DriveFWD
Available Trims1

Annual Fuel Cost

Based on EPA estimates, the 2018 Honda Civic Si 2Dr costs approximately $1,800 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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