Engine Oil

The engine requires a special engine oil meeting GM Standard GM4718M. Oils meeting this standard can be identified as synthetic, and should also be identified with the American Petroleum Institute (API) Certified for Gasoline Engines starburst symbol. However, not all synthetic API oils with the starburst symbol will meet this GM standard. Look for and use only oil that meets GM Standard GM4718M. For the proper viscosity, see Engine Oil

Engine Coolant

50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant. See Engine Coolant.

Hydraulic Brake System

DOT 3 Hydraulic Brake Fluid (GM Part No. U.S. 12377967, in Canada 89021320).

Windshield Washer

Optikleen® Washer Solvent.

Power Steering System

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

Automatic Transmission

DEXRON®-VI Automatic Transmission Fluid.

Key Lock Cylinders

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

Chassis Lubrication

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

Front and Rear Axle

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

Transfer Case

DEXRON®-VI Automatic Transmission Fluid.

Front Axle Propshaft Spline

Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830.

Hood Hinges

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

Outer Tailgate Handle Pivot Points

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

Weatherstrip Conditioning

Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. U.S. 12345579, in Canada 992887).

Weatherstrip Squeaks

Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287, in Canada 10953437).