Automatic Transmission Severe Service Defined
AUTOMATIC TRANSAXLE SEVERE CONDITIONS DEFINEDChange automatic transaxle fluid and filter if the vehicle is mainly driven under one or more of these conditions:
^ In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.
^ In hilly or mountainous terrain.
^ When doing frequent trailer towing.
^ Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these conditions, the fluid and filter do not require changing.