Jeep 2008 Grand Cherokee - Manual (Page 452)

Schedule “B” — Diesel Engine
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
• Day or night temperatures are below 32°F (0°C).
• Stop and go driving.
• Extensive engine idling.
• Driving in dusty conditions.
• Short trips of less than 10 miles (16.2 km).
• More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
• Trailer towing.
• Taxi, police, or delivery service (commercial service).
• Off-road or desert driving.
452 SCHEDULE “B” — DIESEL ENGINE
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