Service Intervals

Inspect transmission oil level and condition at every transmission service or overhaul. Under normal service, change fluid and filter at 150,000-mile intervals. Change transmission fluid and filter at 30,000-mile intervals when used under the following conditions:

• In hot weather with temperatures greater than 90°F (32°C), carrying heavy loads and/or in hilly terrain.
• Towing a trailer or using a car top carrier.
• In police, taxi or door-to-door delivery service.
• Extreme dusty conditions or off-road use.