🏷️ Basic Information Identification Make: Buick Model: Rainier Year: 2006 Generation: First Generation (GMT360) 📋 Manual Details Document Properties Manual Type: Owner's Manual Language: English Format: PDF Compatibility Operating Systems: Windows, Mac, Linux ⚙️ Engine Specifications Engine Options Engine Type: 4.2L Inline-6 (Atlas LL8) Displacement: 4.2 Liters (256 cu in) Power: 275 hp @ 5600 rpm (approx.) Torque: 275 lb-ft @ 3600 rpm (approx.) Fuel Type: Unleaded Gasoline Fuel Induction: Sequential Multi-Port Fuel Injection 🔧 Transmission Transmission Options Type: 4-Speed Automatic Gears: 4 Drive Type: Rear-Wheel Drive (RWD) / Optional All-Wheel Drive (AWD) 📐 Dimensions Exterior Dimensions Length: 190.4 inches (approx.) Width: 74.7 inches (approx.) Height: 72.4 inches (approx.) Weight Curb Weight: 4,758 lbs (approx. for RWD model) 🔧 Maintenance Scheduled Maintenance Oil Change Interval: Refer to manual for specific mileage/time intervals Fluid Capacities Engine Oil Capacity: 7.0 quarts (approx. with filter) Coolant Capacity: 17.7 quarts (approx.) Transmission Fluid Capacity: Refer to manual for specific capacity 📄 Features Interior Features Seating Capacity: 5 or 7 passengers (depending on configuration) Safety Features Airbags: Front, side-impact, and available curtain airbags 📄 Towing Towing Capacity Max Towing Capacity: Up to 6,400 lbs (with proper equipment and configuration) Towing Considerations Trailer Brake Controller: Recommended for towing