2018 Mazda 3 5-Door

Sedan Regular
Mazda 3 5-Door 2018
32MPG Combined
4 Trims
Updated February 27, 2026

Looking at the 2018 Mazda 3 5-Door? This Sedan offers 28–32 combined MPG depending on trim and comes with 4 available configurations. We break down the specs, safety data, and how it compares to the competition.

2018 Mazda 3 5-Door Specifications

SpecValue
Combined MPG28–32 combined MPG depending on trim
City MPG28
Highway MPG37
Body StyleSedan
Fuel TypeRegular
DriveFWD
Available Trims4

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Man27/37/312.0L 4cylManual 6-spd
4 cyl28/37/322.0L 4cylAutomatic (S6)
4 cyl26/35/302.5L 4cylAutomatic (S6)
Man25/33/282.5L 4cylManual 6-spd

Annual Fuel Cost

Based on EPA estimates, the 2018 Mazda 3 5-Door costs approximately $1,462 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

Compare the 2018 Mazda 3 5-Door

See how it stacks up against similar vehicles:

Other Model Years

Check Vehicle History

Considering a used Mazda 3 5-Door? Get a comprehensive vehicle history report including accident records, ownership history, and more.

🔍 Check Mazda 3 5-Door Vehicle History Check VIN →
Check Vehicle History

Get the full story — accidents, ownership, recalls, odometer, and more. Decode any VIN instantly.

Check VIN
Buying a used Mazda 3 5-Door? Check VIN on RedVIN