See also:

Introduction
Be extremely careful and prevent injury to yourself and others or damage to your vehicle when using this manual for inspection and maintenance. If you're unsure about any procedure it describes, w ...

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 ...

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 ...