2015 Chevrolet Tahoe LTZ, 4WDFACTORY OEM SERVICE PROCEDURE

Quick Lookups: Fluids

FLUID CAPACITIES
Fluid Type Application Standard Metric Fluid Spec Note S/H
Air Cond Compressor Oil 6.60 OZS. 0.19 L ACDelco GM Part No. 88901445 S
Air Cond Refrigerant Front & Rear,R-1234yf 1.87 LBS. 0.84 KG R-1234yf S
Air Cond Refrigerant Front & Rear,R-134a 2.03 LBS. 0.92 KG R-134a S
Automatic Transmission Fluid Complete Trans System Fluid 12.20 QTS. 11.54 L Automatic Transmission Fluid DEXRON VI All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. S
Automatic Transmission Fluid Overhaul 10.50 QTS. 9.93 L Automatic Transmission Fluid DEXRON VI All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. S
Automatic Transmission Fluid Pan Removal,w/Filter 6.00 QTS. 5.67 L Automatic Transmission Fluid DEXRON VI All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. S
Brake Fluid N/A N/A DOT 3 Hydraulic Brake Fluid S
Differential Gear Oil Front 1.51 QTS. 1.42 L SAE 75W-90 Synthetic Axle Lubricant GM Part No. 88900401. S
Differential Gear Oil Rear,w/o RPO AXN,8.6" 2.15 QTS. 2.03 L SAE 75W-85 Synthetic Axle Lubricant S
Differential Gear Oil Rear,w/RPO AXN,9.5" LD 2.59 QTS. 2.45 L SAE 75W-85 Synthetic Axle Lubricant S
Engine Coolant 18.30 QTS. 17.31 L 50/50 mixture of DEX-COOL and clean, drinkable water Add 2.1 qts. if equipped with rear heater. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. S
Engine Oil w/Filter 8.00 QTS. 7.57 L API - SAE 0W-20 Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. S
Engine Oil w/o Filter 7.50 QTS. 7.09 L API - SAE 0W-20 Engine oil meeting the dexos1 specification of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty. S
Fuel Tank 26.00 GALS. 98.42 L S
Transfer Case Fluid 1.60 QTS. 1.51 L Automatic Transmission Fluid DEXRON VI All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling. S
Windshield Washer Fluid N/A N/A Windshield Washer Fluid Follow the Manufacturer's Instructions for the mixture ratio. Automotive windshield washer fluid that meets regional freeze protection requirements. 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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