Under the Hood

The 2.0-liter four-cylinder in the Mazda3 i has variable valve timing and develops 148 horsepower (144 hp in PZEV form). The Mazda3 s uses a 2.3-liter four-cylinder that pumps out 156 hp. A five-speed manual gearbox is standard, and a four-speed automatic transmission with a manual-shift provision is optional for the Mazda3 i. The 2.3-liter engine can mate with a five-speed automatic.

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    Engine Oil
    NOTE: Changing the engine oil should be done by an Authorized Mazda Dealer. Recommended Oil Use SAE 5W-20 engine oil (Without turbocharger). Oil container labels provide important information. ...

    Outside the United States and Canada
    Government regulations in the United States and Canada require that automobiles meet specific emission regulations and safety standards. Therefore, vehicles built for use in the United States, i ...

    How the SRS Air BagsWork
    Your Mazda is equipped with the following types of SRS air bags. SRS air bags are designed to work together with the seat belts to help to reduce injuries during an accident. The SRS air bags ar ...