2002-2009

Engine 4.2L 6-Cylinder DOHC

• Recommended oil viscosity: 5W-30

• Oil certification: API

• Drain plug torque: 19 ft-lbs

• Oil capacity: 7.0 quarts

Spark Plug Gap

• 4.2L 6-Cylinder: 0.044''

Engine 5.3L 8-Cylinder

• Recommended oil viscosity: 5W-30

• Oil certification: API

• Drain plug torque: 19 ft-lbs

• Oil capacity: 6.0 quarts

Spark Plug Gap

• 5.3L 8-Cylinder: 0.040''

Engine 6.0L 8-Cylinder 

• Recommended oil viscosity: 5W-30

• Oil certification: API

• Drain plug torque: 19 ft-lbs

• Oil capacity: 6.0 quarts

Spark Plug Gap

• 6.0L 8-Cylinder :0.040''

Fuel

• Capacity: 22.0 gal (83.3 L)

Coolant

• Type: 50/50 mixture of clean, drinkable water and use only DEX-COOL®Coolant.

• Capacity: 

  • 4.2L L6:9.7 qt (9.2 L)

  • 5.3L V8 11.2 qt (10.6 L)

  • 6.0L V8 11.2 qt (10.6 L)

Transfer Case Lubricant

• Type: AUTO-TRAK II Fluid (GM Part No. U.S. 12378508, in Canada 10953626)

• Capacity: 2.0 qt (1.8 L)

Transmission (Drain and Refill)

• Capacity: 5.0 qt (4.7 L)

Hydraulic Brake System

• Type: Delco® Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid.

Windshield Washer

• Type: Optikleen® Washer Solvent  

Parking Brake Cable Guides

• Type: Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Power Steering System

• Type: GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186).

Automatic Transmission

• Type: DEXRON®-VI Automatic Transmission Fluid.

Key Lock Cylinders

• Type: Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).

Chassis Lubrication

• Type: Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Front Axle

• Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115.

Rear Axle (Except SS Model)

• Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115

Rear Axle (SS Model)

• Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115. With a complete drain and refill add 5.5 ounces (163 ml) of Limited-Slip Axle Lubricant Additive (GM Part No. U.S. 1052358, in Canada 992694)

Rear Driveline Center Spline and Universal Joints

•  Type: Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Constant Velocity Universal Joint

• Type:  Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Hood Latch Assembly, Secondary Latch, Pivots, Spring Anchor, and Release Pawl

• Type: Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Powertrain

---

References

---

1. 2008 Chevrolet Trailblazer Owners Manual 

2. Chevrolet Trailblazer - Wikipedia.org

3. US Department of Energy - FuelEconomy.gov

4. NHTSA | National Highway Traffic Safety Administration -  NHTSA.gov