See also:

Engine cooling system
The engine cooling system is filled at the factory with a pre-diluted mixture of 50% Genuine NISSAN Engine Coolant (blue) and 50% water to provide year-round anti-freeze and coolant protection. Th ...

Three-way catalyst
The three-way catalyst is an emission control device installed in the exhaust system. Exhaust gases in the three-way catalyst are burned at high temperatures to help reduce pollutants. WARNING: ...

Going & Stopping
Base Altimas have a 2.5-liter four-cylinder engine that makes 175 horsepower (170 hp in states that have adopted California's emissions rules). A 270-hp, 3.5-liter V-6 is optional. A six-speed man ...