Under the Hood

The Mazda3 i comes standard with a 148-horsepower, 2.0-liter four-cylinder engine that can team with a five-speed manual or five-speed automatic transmission. Mazda3 s models use a 167-hp, 2.5-liter four-cylinder engine that works with a six-speed manual or five-speed automatic. The automatic includes a clutchless-manual mode that lets the driver control gear changes by nudging the console gear selector up or down.


A Mazda3 i with a manual transmission achieves the best EPA-estimated gas mileage, with its 25/33 mpg city/highway rating. Selecting the automatic lowers the city rating by 1 mpg. The Mazda3 s, meanwhile, is rated at 21/29 mpg with the manual and 22/29 mpg with the automatic.

    See also:

    Owner Maintenance Schedule
    The owner or a qualified service technician should make these vehicle inspections at the indicated intervals to ensure safe and dependable operation. Bring any problem to the attention of an Autho ...

    Manual Transmission Operation
    Manual Transmission Shift Pattern The vehicle is equipped with either a 5- speed or 6-speed manual transmission. The shift pattern for each is shown above. Depress the clutch pedal all the way d ...

    Operating Tips
    qOperating the Climate Control System Operate the climate control system with the engine running. NOTE: To prevent the battery from being discharged, do not leave the fan control dial on for a l ...