2018 Mazda 3 4-Door

Compact Sedan Regular
Mazda 3 4-Door 2018
31MPG Combined
4 Trims
← 2017 2018 2019 →
Updated February 27, 2026

The 2018 Mazda 3 4-Door Compact Sedan provides 29–31 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.

2018 Mazda 3 4-Door Specifications

SpecValue
Combined MPG29–31 combined MPG depending on trim
City MPG28
Highway MPG38
Body StyleCompact Sedan
Fuel TypeRegular
DriveFWD
Available Trims4

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Man28/38/312.0L 4cylManual 6-spd
4 cyl28/37/312.0L 4cylAutomatic (S6)
4 cyl27/36/302.5L 4cylAutomatic (S6)
Man25/34/292.5L 4cylManual 6-spd

Annual Fuel Cost

Based on EPA estimates, the 2018 Mazda 3 4-Door costs approximately $1,437 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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