2022 GMC Sierra 1500 Fluid Type Specifications

Here at Repairius.com, we believe that proper maintenance is key to the longevity and reliability of your vehicle. This comprehensive guide outlines all factory-specified fluid types, capacities, and general maintenance notes for your 2022 GMC Sierra 1500. Adhering to these specifications will ensure your truck performs as intended and help you avoid costly repairs.

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil	SAE 0W-20, dexos1 Gen3	6.0 - 8.0 quarts (verify with owner's manual)
Engine Coolant	DEX-COOL Antifreeze/Coolant (GM Spec 6277M)	~16 quarts (total system, verify)
Transmission Fluid	DEXRON ULV (Automatic Transmission Fluid)	~11.0 quarts (total fill, varies by transmission)
Transfer Case	ACDelco Transfer Case Fluid (GM Spec 9986186)	~1.5 - 2.0 quarts (varies by transfer case)
Front Differential	SAE 75W-90, GM Spec 9986178	~1.7 - 2.0 quarts (varies by axle)
Rear Differential	SAE 75W-90, GM Spec 9986178 (with Friction Modifier if LSD)	~2.2 - 2.5 quarts (varies by axle)
Brake Fluid	DOT 4 Low Viscosity (GM Spec 19300642)	As needed
Power Steering	Electro-Hydraulic, integrated with brake system	N/A (electrically assisted)
Washer Fluid	Pre-mixed Windshield Washer Solvent	~1 gallon
DEF (Diesel)	ISO 22241 (API DEF certified)	7.0 gallons (Diesel models only)

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Engine Oil

Specification: For the 2022 GMC Sierra 1500, General Motors specifies the use of SAE 0W-20 full synthetic engine oil meeting the dexos1 Gen3 standard. This specification supersedes previous dexos generations and is designed for enhanced fuel economy, reduced turbocharger coking, and improved protection against low-speed pre-ignition (LSPI). Always look for the official dexos1 Gen3 logo on the oil container.

Capacity: Engine oil capacity can vary slightly depending on the specific engine (e.g., 2.7L Turbo, 5.3L V8, 6.2L V8, 3.0L Duramax Diesel). Generally, capacities range from 6.0 to 8.0 quarts. Always verify the exact capacity for your engine in your owner's manual or OEM service information.

Intervals: The Oil Life Monitoring (OLM) system dictates oil change intervals. It is crucial to follow the OLM system, which takes into account driving conditions, temperature, and engine revolutions. Typically, intervals can range from 7,500 to 12,000 miles or once a year, whichever comes first. Refer to your owner's manual for specific OLM reset procedures.

Pitfalls:

• Using non-dexos1 Gen3 oil: Can lead to reduced engine performance, potential engine damage, and may void your powertrain warranty.
• Incorrect viscosity: Using a viscosity other than 0W-20 can negatively impact fuel economy and engine wear characteristics, especially in modern engines with tight tolerances.
• Overfilling or underfilling: Both can cause significant engine problems. Always check the oil level on a flat surface after the engine has been off for a few minutes.

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Engine Coolant

Specification: The 2022 GMC Sierra 1500 requires DEX-COOL Antifreeze/Coolant. This is an Orange/Pink/Red colored Organic Acid Technology (OAT) coolant meeting GM Spec 6277M. DEX-COOL is a long-life coolant designed for extended service intervals and specific corrosion protection for GM engines.

Capacity: The total cooling system capacity is approximately 16 quarts, but this can vary. When performing a drain and fill, you will typically replace a smaller amount. Always refer to your owner's manual for precise refill capacities.

Intervals: DEX-COOL has an extended service life, often advertised for up to 5 years or 150,000 miles, whichever comes first. However, it's always wise to inspect the coolant level and condition regularly.

Pitfalls:

• Mixing Coolant Types: NEVER mix DEX-COOL with other types of coolants (e.g., IAT, HOAT, or universal coolants). Mixing different chemistries can lead to gel formation, corrosion, and severe damage to the cooling system and engine. If in doubt, flush the system thoroughly and refill with only DEX-COOL.
• Using tap water: Always use distilled water if you need to mix concentrated coolant. Tap water contains minerals that can cause scale buildup and corrosion.
• Ignoring low coolant levels: Can lead to engine overheating and potential damage.

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Transmission Fluid (Automatic)

Specification: The 2022 GMC Sierra 1500 (with its 8-speed or 10-speed automatic transmissions) requires DEXRON ULV (Ultra Low Viscosity) Automatic Transmission Fluid. This is a highly specific, low-viscosity fluid designed for optimal performance and efficiency in modern GM transmissions. Do not use older DEXRON VI or other generic multi-vehicle ATFs.

Capacity: Total transmission fluid capacity can range up to ~11.0 quarts for a complete overhaul/dry fill. For a simple drain and fill, you will typically replace a smaller volume. Precise capacities vary by transmission model. Always consult your service manual or owner's manual for exact figures.

Intervals: Many modern GM transmissions are considered