See also:

Trailer Towing
The Mazda3 is not designed for towing. Never tow a trailer with your Mazda3. ...

Specifications
Engine Electrical System *1 ex factory CAUTION: When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on the iridium alloy and platinum tips could be damaged. ...

Tires
For reasons of proper performance, safety, and better fuel economy, always maintain recommended tire inflation pressures and stay within the recommended load limits and weight distribution. WARNI ...