Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 GMC Yukon DenaliFACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | w/o Rear AC | 8.00 OZS. | 0.23 L | PAG 46 | S | ||
| Air Cond Compressor Oil | w/Rear A/C | 11.00 OZS. | 0.32 L | PAG 46 | S | ||
| Air Cond Refrigerant | 2.71 LBS. | 1.22 KG | R-134a | S | |||
| Automatic Transmission Fluid | Trans Mfr CD 4L65E/M32 | Overhaul | 13.50 QTS. | 12.77 L | Automatic Transmission Fluid DEXRON VI | Refer to TSB No. 04-07-30-037C, Date of Issue: April 11, 2007. | S |
| Automatic Transmission Fluid | Trans Mfr CD 4L65E/M32 | Pan Removal | 7.70 QTS. | 7.28 L | Automatic Transmission Fluid DEXRON VI | Refer to TSB No. 04-07-30-037C, Date of Issue: April 11, 2007. | S |
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | S | |||
| Differential Gear Oil | 10.5" Rear Axle | 2.75 QTS. | 2.6 L | SAE 75W-90 Synthetic Gear Oil | S | ||
| Differential Gear Oil | 8.6" Rear Axle | 2.15 QTS. | 2.03 L | SAE 75W-90 Synthetic Gear Oil | S | ||
| Differential Gear Oil | 9.5" Rear Axle | 2.75 QTS. | 2.6 L | SAE 75W-90 Synthetic Gear Oil | S | ||
| Differential Gear Oil | 9.75" Rear Axle | 3.00 QTS. | 2.83 L | SAE 75W-90 Synthetic Gear Oil | S | ||
| Differential Gear Oil | Front,8 1/4" | 1.51 QTS. | 1.42 L | 4WD:SAE 80W-90 Gear Oil; AWD: SAE 75W-90 Synthetic Gear Oil | S | ||
| Differential Gear Oil | Front,9 1/4" | 1.83 QTS. | 1.73 L | 4WD:SAE 80W-90 Gear Oil; AWD: SAE 75W-90 Synthetic Gear Oil | S | ||
| Engine Coolant | 6.0L Eng | w/Engine Oil Cooler | 15.40 QTS. | 14.57 L | 50/50 mixture of DEX-COOL and clean, drinkable water | S | |
| Engine Coolant | 6.0L Eng | w/o Engine Oil Cooler | 15.80 QTS. | 14.95 L | 50/50 mixture of DEX-COOL and clean, drinkable water | Vehicles equipped with the optional air conditioner. | S |
| Engine Oil | 6.0L Eng | w/Filter | 6.00 QTS. | 5.67 L | API - SAE 5W-30 | When the temperature is consistently above 0Deg.F (-18Deg.C), SAE 10W-30 can be used. SAE 20W-50 or oils of other viscosity rating or quality designations are NOT recommended for use in any truck at any time. | S |
| Fuel Tank | 26.00 GALS. | 98.42 L | S | ||||
| Power Steering Fluid | N/A | N/A | GM Power Steering Fluid | S | |||
| Transfer Case Fluid | 2.00 QTS. | 1.89 L | AUTO TRAK II Fluid | S | |||
| Windshield Washer Fluid | N/A | N/A | Optikleen Windshield Washer Fluid | Follow the Manufacturer's Instructions for the mixture ratio. | S | ||
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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