Complete Oil Specifications
Your 2023 Chevrolet Silverado 1500 6.2L EcoTec3 V8 (L87) requires full synthetic SAE 0W-20 oil meeting GM dexos1 Gen 3 certification.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 |
| API Rating | dexos1 Gen 3 |
| ILSAC Rating | GF-6A |
| Capacity (with filter) | 8.0 quarts |
| Oil Filter | ACDelco PF63 |
| Normal Interval | 7500 miles |
Why dexos1 Gen 3 and 0W-20 Are Critical
The L87 6.2L is GM’s top-of-the-line EcoTec3 V8, combining Dynamic Fuel Management (DFM — capable of running on as few as 2 of 8 cylinders) with Active Fuel Management (AFM), Variable Valve Timing, and direct injection. The cylinder deactivation hydraulic lifters require oil that pressurizes almost instantly at startup — that’s the 0W (winter) cold-flow rating. GM dexos1 Gen 3 adds LSPI protection chemistry specifically required for direct-injection engines, plus tighter oxidation and volatility standards than the previous Gen 2 spec.
Using incorrect oil will:
- ❌ Cause AFM/DFM lifter collapse noise and eventual lifter failure from inadequate cold-start pressurization
- ❌ Increase LSPI risk — the direct-injection L87 is susceptible without the Gen 3 additive package
- ❌ Void GM’s powertrain warranty — dexos1 Gen 3 certification is a warranty requirement
GM-Approved Oil Brands
-
✅ ACDelco dexos1 Gen 3 Full Synthetic 0W-20
-
✅ Mobil 1 Advanced Full Synthetic 0W-20
-
✅ Castrol EDGE Advanced Full Synthetic 0W-20
-
✅ Pennzoil Platinum Full Synthetic 0W-20
-
✅ Valvoline Advanced Full Synthetic 0W-20
Look for the dexos1 Gen 3 circular logo on the bottle. Generic API SP/GF-6A oils that are not dexos1 Gen 3 certified do not meet GM’s specification, even if they appear similar.
Oil Filter Note
The 2023 L87 uses the ACDelco PF63, not the older PF48E which fits previous generation V8s. Using the wrong filter may result in a poor seal or incorrect bypass valve pressure.
Severe Service Check
You need the 3750-mile interval if you:
- Tow a trailer or haul heavy loads regularly
- Drive primarily in stop-and-go urban traffic
- Take mostly short trips under 5 miles
- Operate in extreme cold (below -20°F) or extreme heat
Installation Details
Drain Plug Torque: 18 ft-lbs
OEM Filter: ACDelco PF63
Aftermarket Filters:
-
Mobil 1 M1-113
-
K&N HP-1010
-
Wix 57060
Pro Tip: After an oil change, some owners briefly notice AFM/DFM lifter noise on the first cold start. This is normal — it clears within the first 30 seconds as oil fills the lifter passages. If noise persists beyond 60 seconds, recheck your oil level.
FAQs
What oil does a 2023 Chevrolet Silverado 1500 6.2L V8 take? Full synthetic SAE 0W-20 meeting GM dexos1 Gen 3 certification. Do not substitute a non-dexos1 Gen 3 oil, even if it meets API SP.
How many quarts does it need? 8.0 quarts with a new filter, 7.5 without.
Can I use 5W-30 for better protection when towing? No. GM specifies 0W-20 for the L87. Using a heavier viscosity does not improve protection for this engine — it’s engineered for 0W-20, and thicker oil can interfere with DFM/AFM lifter operation.
What’s the difference between the 5.3L and 6.2L oil specs? Both use 0W-20 dexos1 Gen 3 and the same filter (PF63 for 2023 variants). The 6.2L holds 8 quarts vs. 8 quarts for the 5.3L — similar capacity, same oil spec, different power output.
How often should I change the oil? Every 7500 miles or 1 year under normal conditions. The GM Oil Life System (OLS) adjusts the interval based on actual driving — it may recommend shorter intervals when towing or in severe duty.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-04-22 | Source: 2023 Chevrolet Silverado 1500 Owner’s Manual