2024 Chevrolet Silverado 1500 Fluid Specs

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil (2.7L)	SAE 0W-20, dexos1 Gen 3	6.0 qt / 5.7 L
Engine Oil (5.3L / 6.2L)	SAE 0W-20, dexos1 Gen 3	8.0 qt / 7.6 L
Engine Oil (3.0L Diesel)	SAE 0W-20, dexosD	7.0 qt / 6.6 L
Engine Coolant	DEX-COOL OAT, GM 6277M	11.4–17.8 qt / 10.8-16.8 L (verify)
Automatic Transmission Fluid	DEXRON VI	9.7-11.1 qt / 9.2-10.5 L (service fill)
Transfer Case Fluid	DEXRON VI	1.6 qt / 1.5 L
Front Differential Gear Oil	SAE 75W-85 GL-5	1.1 qt / 1.0 L
Rear Differential Gear Oil	SAE 75W-85 GL-5	2.75 qt / 2.6 L
Brake Fluid	DOT 3	As needed
Power Steering	N/A (Electric Power Steering)	N/A
Windshield Washer Fluid	Good quality solvent	~1.0 gal / 3.8 L
Diesel Exhaust Fluid (DEF)	API Certified ISO 22241	5.3 gal / 20 L

Engine Oil

Proper engine oil is the lifeblood of your Silverado's powertrain. Using the correct specification is critical for lubrication, cooling, and longevity, especially with modern direct-injection and turbocharged engines.

• Specification: For gasoline engines (2.7L Turbo, 5.3L V8, 6.2L V8), Chevrolet specifies ACDelco dexos1 Gen 3 SAE 0W-20. This is a full synthetic oil designed to prevent Low-Speed Pre-Ignition (LSPI) in turbocharged engines, fight sludge, and improve fuel economy. Always look for the dexos1 Gen 3 logo on the bottle.
• For the 3.0L Duramax Turbo-Diesel, the required specification is ACDelco dexosD SAE 0W-20. This is a specific low-ash formulation for modern diesel engines with advanced emissions systems. Do not use dexos1 or CK-4 oil in the 3.0L Duramax.
• Interval: The oil life monitoring system will alert you when it's time for a change, which is typically between 5,000 and 7,500 miles depending on your driving habits. Do not exceed one year between changes.
• Pitfalls: Never substitute a conventional or non-dexos certified oil. Using a heavier weight like 5W-30 can impede flow and affect the performance of variable valve timing systems.

Engine Coolant (Antifreeze)

Your Silverado's cooling system uses a specific Organic Acid Technology (OAT) coolant to protect the aluminum components in the engine and radiator.

• Specification: Use a silicate-free OAT coolant meeting GM specification 6277M, commonly known as DEX-COOL. It will be orange or red in color. It is typically sold as a concentrate that must be mixed 50/50 with distilled water.
• Interval: DEX-COOL is a long-life coolant. The first service is recommended at 150,000 miles or 5 years, with subsequent changes every 50,000 miles.
• Pitfalls: Never mix DEX-COOL with other coolant types, such as green conventional coolant or the Hybrid OAT (HOAT) coolants used by Ford and Chrysler. Mixing them can cause the coolant to gel, leading to blockages, overheating, and catastrophic engine damage. Always top off with a pre-mixed 50/50 DEX-COOL formula or distilled water.

Transmission Fluid

The 8-speed and 10-speed automatic transmissions in the 2024 Silverado require a specific low-viscosity fluid for proper clutch engagement and hydraulic control.

• Specification: Use only ACDelco DEXRON VI (or a licensed equivalent). This is a full synthetic fluid with specific frictional properties.
• Interval: GM considers this a "fill-for-life" fluid under normal driving conditions. However, for vehicles used for towing, hauling, or severe duty, a fluid and filter change every 45,000 to 60,000 miles is highly recommended.
• Pitfalls: Never use a "universal" or multi-vehicle ATF. The use of older fluids like DEXRON III or Mercon V will cause poor shifting, shudder, and eventual transmission failure.

Transfer Case & Differential Fluid

These components require specific gear oils to protect the gears from extreme pressure and wear.

• Transfer Case: The transfer case in 4WD models is lubricated by DEXRON VI automatic transmission fluid, the same fluid used in the transmission.
• Front & Rear Differentials: Both front and rear axles use SAE 75W-85 GL-5 synthetic gear oil. No friction modifier is required unless you have a limited-slip differential, which is uncommon on stock configurations.
• Interval: Change the transfer case and differential fluids every 50,000 to 100,000 miles, or more frequently if the truck is used for frequent towing, off-roading, or water fording.
• Pitfalls: Using a heavier gear oil like 75W-90 or 75W-140 can slightly decrease fuel efficiency due to increased drag.

Brake Fluid & Power Steering

• Brake Fluid: The brake system requires DOT 3 motor vehicle brake fluid. Check the fluid level periodically and have the system flushed and replaced every 2 to 3 years, as brake fluid is hygroscopic (absorbs water), which lowers its boiling point and can corrode brake lines.
• Power Steering: The 2024 Silverado uses an Electric Power Steering (EPS) system. There is no hydraulic power steering fluid to check or change.

Other Fluids

• Windshield Washer Fluid: Use any good quality, name-brand washer fluid solvent. In winter months, select a product with a low freezing point.
• Diesel Exhaust Fluid (DEF): For the 3.0L Duramax, you must use API-certified Diesel Exhaust Fluid meeting ISO 22241. This fluid is critical for the Selective Catalytic Reduction (SCR) system to reduce NOx emissions. The truck will enter a reduced power mode and eventually will not start if the DEF tank runs empty.

---

Disclaimer: Capacities are approximate. Always consult your owner's manual or OEM service information to verify the exact fluid specifications and capacities for your specific vehicle configuration. Following factory recommendations is crucial for vehicle longevity and warranty compliance.

Find a trusted shop on Repairius.