Recommended Fluids for a 1997 GMC Yukon

1997 GMC Yukon Fluid Specifications

Engine Oil

• Viscosity: SAE 5W-30
• Specification: API-certified (e.g., API SN or newer)
• Filter: ACDelco PF454F (or equivalent)

Transfer Case

• Fluid: SAE 80W-90 gear oil
• Capacity: ~1.6 quarts

Front Axle (Differential)

• Fluid: SAE 75W-90 gear oil
• Capacity: ~2 quarts

Rear Axle (Differential)

• Fluid: SAE 75W-90 gear oil
• Capacity: ~2.5 quarts

Always consult the owner's manual for exact capacities and any model-specific variations (e.g., limited-slip additive for rear axle). Use quality fluids meeting GM specifications for optimal drivetrain longevity.