What kind of oil does a 2024 Chevy 3500 diesel take?
The oil required is Dexos2 synthetic motor oil, typically SAE 5W-40, with about 11 quarts of capacity including the filter.
The 2024 Silverado 3500HD uses the Duramax 6.6L turbodiesel. Using the correct, Dexos2‑certified oil ensures proper lubrication, fuel efficiency, and protection for the emissions system. Always confirm the exact specification in the owner's manual or on the oil filler cap if you’re unsure.
Oil specification and capacity for the Duramax 6.6L
The Duramax 6.6L diesel in the 2024 Silverado 3500HD calls for a full-synthetic diesel engine oil that meets GM's Dexos2 specification, with a viscosity commonly listed as SAE 5W-40.
Before listing the compliant options, note that following Dexos2 5W-40 is the standard recommendation for this engine in most markets.
- Dexos2-certified synthetic motor oil (diesel engine oil)
- Viscosity: SAE 5W-40 (diesel-grade)
- Oil capacity: roughly 11 quarts (10.4 liters) with filter
- Brand: GM-approved Dexos2 oils or reputable aftermarket oils that meet the Dexos2 specification
Using oil that meets the Dexos2 specification helps protect the turbocharger, emissions control system, and overall engine durability, while also supporting reliable cold starts and high-temperature operation.
Maintenance notes and verification
Always consult the owner's manual for the precise oil specification and service intervals for your vehicle's VIN, driving conditions, and climate. Depending on market or engine variant, capacities and viscosity recommendations may vary.
Summary
For the 2024 Chevy Silverado 3500HD with the Duramax diesel, use Dexos2 synthetic motor oil, typically SAE 5W-40, and plan to fill about 11 quarts with a new filter. Verify exact requirements in the owner's manual or GM’s official guidance, and choose a reputable brand that meets the Dexos2 specification.
