1) Cold Start: The engine is started while the coolant temperature is below 185°F (85°C) and the engine has been off for at least 6 hours.
2) Vehicle Stabilization: The vehicle accelerates to a speed of 35 mph (56 km/h) and maintains this speed for 10 seconds.
3) Acceleration: The vehicle accelerates from a stop to 50 mph (80 km/h) in 15 seconds.
4) Cruise: The vehicle maintains a speed of 50 mph (80 km/h) for 5 minutes.
5) Deceleration: The vehicle decelerates from 50 mph (80 km/h) to a stop in 15 seconds.
6) Idle: The engine idles for 1 minute with the air conditioner on.
This drive cycle is repeated three times.