🏷️ Basic Information Identification Make: Buick Model: Rainier Year: 2005 Generation: First Generation (GMT360) 📋 Manual Details General Manual Type: Owner's Manual Manual Format: PDF Download Language: English Contents Covered Topics: Features, Controls, Maintenance, Service Schedules, DIY Activities, Towing, Safety Compatibility Compatible Operating Systems: Windows, Mac, Linux ⚙️ Engine Specifications Base Engine Type: 4.2L Inline-6 Vortec Displacement: 256 cu in (4196 cc) Power: 275 hp @ 5600 rpm Torque: 275 lb-ft @ 4200 rpm Optional Engine Type: 5.3L V8 Vortec Displacement: 327 cu in (5328 cc) Power: 290 hp @ 5200 rpm Torque: 325 lb-ft @ 4000 rpm 🔧 Transmission General Type: 4-Speed Automatic Gears: 4 Drivetrain Drivetrain: Rear-Wheel Drive (RWD) or All-Wheel Drive (AWD) 📐 Dimensions Exterior Length: Approximately 192.4 inches Width: Approximately 74.7 inches Height: Approximately 70.1 inches Weight Curb Weight Rwd: Approximately 4,650 lbs Curb Weight AWD: Approximately 4,850 lbs Wheelbase Wheelbase: 113 inches 🛡️ Safety Features Towing Maximum Towing Capacity: Up to 6,500 lbs (with 5.3L V8 and proper equipment) Safety Features Airbags: Front, Side-Impact Anti Lock Braking System: Standard Traction Control: Standard 🔧 Maintenance Oil Recommended Oil Type: SAE 5W-30 Oil Capacity 4.2L I6: 7.0 quarts (6.6 liters) Oil Capacity 5.3L V8: 7.0 quarts (6.6 liters) Scheduling Typical Oil Change Interval: 7,500 miles or 6 months (whichever comes first) Tire Rotation Interval: 7,500 miles Air Filter Replacement: Refer to manual for mileage/time recommendations