2022 Chevrolet Tahoe Fluid Specs

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil (5.3L & 6.2L)	0W-20, dexos1 Gen 3	8.0 quarts
Engine Oil (3.0L Diesel)	0W-20, dexosD	7.0 quarts
Engine Coolant	DEX-COOL (Orange, OAT)	~17.5 - 18.5 quarts
Transmission Fluid	DEXRON ULV	~10 quarts (service fill)
Transfer Case Fluid	DEXRON VI	~2.0 quarts
Front Differential	75W-90 Synthetic	~1.5 quarts
Rear Differential	75W-90 Synthetic	~2.25 quarts
Brake Fluid	DOT 4 LV	As needed
Power Steering	N/A (Electric)	N/A
Washer Fluid	-30°F All-Season	1.1 gallons
Diesel Exhaust Fluid (DEF)	API Certified ISO 22241	5.0 gallons

Engine Oil

For the 2022 Chevrolet Tahoe, selecting the correct engine oil is critical for the longevity and performance of its advanced engine technologies, including Dynamic Fuel Management.

• Gasoline Engines (5.3L V8 L84 & 6.2L V8 L87): Use a full synthetic SAE 0W-20 oil that meets GM dexos1 Gen 3 specifications. This latest generation of dexos1 is backward-compatible but offers superior protection against deposits, wear, and oxidation compared to previous versions. Using a non-licensed product risks engine damage and may void your powertrain warranty.
  • Capacity: 8.0 quarts with filter change.
  • Interval: Follow the Oil Life Monitoring (OLM) system, which typically recommends a change every 7,500 miles under normal conditions. Do not exceed one year between changes, regardless of mileage.
• Diesel Engine (3.0L I6 LM2 Duramax): This engine requires a specific diesel-rated oil. Use SAE 0W-20 that meets GM dexosD specifications. Note that dexosD is not the same as dexos1 or dexos2. Using the wrong oil can lead to damage to the sophisticated emissions control systems.
  • Capacity: 7.0 quarts with filter change.

Engine Coolant (Antifreeze)

The 2022 Tahoe left the factory with ACDelco DEX-COOL Extended Life Antifreeze. This is an orange-colored Organic Acid Technology (OAT) coolant.

• Type: Use a silicate-free and phosphate-free OAT coolant meeting GM specification 6277M. While DEX-COOL is the OEM product, other licensed coolants of the same formulation are acceptable.
• Mixing Warning: Never mix DEX-COOL with conventional green (IAT) or hybrid (HOAT) coolants. Mixing different coolant chemistries can cause them to gel, leading to blockages in the radiator, heater core, and cooling passages, resulting in catastrophic engine overheating.
• Interval: DEX-COOL is an extended-life formula rated for up to 5 years or 150,000 miles. However, it's wise to test the coolant's condition annually.

Transmission Fluid

All 2022 Tahoes are equipped with a 10-speed automatic transmission (10L80).

• Type: This transmission exclusively requires a low-viscosity fluid, ACDelco DEXRON ULV (Ultra-Low Viscosity). The specification number is GM 95378720.
• Critical Note: Do not use DEXRON VI, DEXRON III, or any "universal" ATF. These fluids have a different viscosity and friction profile. Using the wrong fluid will cause severe shift quality issues and can lead to premature transmission failure. This is not a place to substitute.
• Interval: This is considered a "fill-for-life" fluid under normal driving conditions. However, for vehicles used for heavy towing or in severe service, a fluid and filter change every 45,000-60,000 miles is recommended.

Drivetrain Fluids (Transfer Case & Differentials)

Transfer Case (4WD Models): The Autotrac 2-speed transfer case requires ACDelco DEXRON VI (Six) Automatic Transmission Fluid. Do not confuse this with the ULV fluid used in the transmission.

Front & Rear Differentials: Both front and rear axles use a high-quality synthetic gear oil.

• Type: SAE 75W-90 Synthetic Gear Oil meeting GM specification 9986315. This applies to both the front differential and the rear differential.
• Limited-Slip Additive: The 2022 Tahoe's optional mechanical limited-slip rear differential (part of the Max Trailering Package) does not require a separate friction modifier additive. The recommended OEM fluid is already formulated for this application.
• Interval: Change every 50,000 to 100,000 miles, depending on use. For vehicles that frequently tow or go off-road, stick to the lower end of that range.

Brake & Steering Fluids

Brake Fluid: The Tahoe requires a low-viscosity DOT 4 fluid for proper ABS and stability control system operation.

• Type: DOT 4 LV (Low Viscosity). While standard DOT 3 or DOT 4 will work in an emergency, the LV formulation is required for the fastest possible response from the safety systems. The fluid should be sourced from a sealed container to prevent moisture contamination.
• Interval: Flush the brake fluid every 2-3 years, regardless of mileage, as it absorbs moisture from the air, lowering its boiling point and promoting corrosion.

Power Steering: The 2022 Tahoe is equipped with Electric Power Steering (EPS). There is no hydraulic power steering pump, reservoir, or fluid to service.

Other Fluids

• Washer Fluid: Use any quality all-season washer fluid rated for freeze protection appropriate for your climate (e.g., -30°F).
• Diesel Exhaust Fluid (DEF) (3.0L Duramax only): The diesel model requires DEF to meet emissions standards. The DEF tank is located on the passenger side of the vehicle, with a blue cap.
  • Type: Use a fluid that is API Certified and meets ISO 22241. This will be clearly marked on the bottle. Using non-compliant fluid can damage the expensive SCR (Selective Catalytic Reduction) system.

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