See also:

Engine Exhaust (Carbon Monoxide)
WARNING: Do not drive your vehicle if you smell exhaust gas inside the vehicle: Engine exhaust gas is dangerous. This gas contains carbon monoxide (CO), which is colorless, odorless, and poisonou ...

Design: inheriting the Mazda 3's established identity while making it more expressive
The design concept for the new Mazda 3 was "remaining faithful to an inherited identity while evolving the design to make it more expressive." While retaining some of the original model' ...

Fuel Requirements
* U.S. federal law requires that octane ratings be posted on gasoline station pumps. Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL, which will reduce exhaust ...