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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-s ...

Engine Oil
NOTE: Changing the engine oil should be done by an Authorized Mazda Dealer. Recommended Oil Use SAE 5W-20 engine oil. Oil container labels provide important information. A chief contribution th ...

Supplemental Restraint System Components
The supplemental restraint systems (SRS) have two basic subsystems: - The air bag system with inflators and air bags. - The electrical system with crash sensors and diagnostic module. The air bags ...