Complete Oil Specifications
Your 2023 Chevrolet Blazer 2.0T requires full synthetic 0W-20 motor oil meeting GM’s dexos1 Gen 3 specification. The LSY is a turbocharged direct-injection four-cylinder that shares its architecture with the Cadillac XT5 and GMC Terrain — GM’s most-deployed high-output compact engine.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 |
| API Rating | SP |
| ILSAC Rating | GF-6A |
| Capacity (with filter) | 5.3 quarts |
| Oil Filter | ACDelco PF66 |
| Normal Interval | 7500 miles |
Why 0W-20 is Critical for This Engine
The LSY’s direct injection sprays fuel at up to 2,900 psi directly into the combustion chamber, bypassing the intake valves. This can wash oil films off cylinder walls under certain load conditions, creating the risk for Low-Speed Pre-Ignition (LSPI). GM’s dexos1 Gen 3 0W-20 formula includes specific anti-LSPI additives and robust deposit control chemistry to protect the injector tips and turbocharger under sustained boost.
Using incorrect oil will:
- ❌ Risk LSPI knock events that can catastrophically damage pistons and rods
- ❌ Allow carbon buildup on injectors, reducing fuel atomization over time
- ❌ Void GM powertrain warranty coverage
Chevrolet-Approved Oil Brands
-
✅ ACDelco dexos1 Gen 3 Full Synthetic 0W-20
-
✅ Mobil 1 Advanced Full Synthetic 0W-20
-
✅ Pennzoil Platinum Full Synthetic 0W-20
-
✅ Castrol EDGE 0W-20 Advanced Full Synthetic
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✅ Valvoline Advanced Full Synthetic 0W-20
Verify the dexos1 Gen 3 certification mark on the bottle — not all 0W-20 oils carry GM’s licensed formulation.
Severe Service Check
You need the 5000-mile interval if you:
- Drive predominantly short trips under 5 miles in urban environments
- Frequently idle in traffic or at drive-throughs
- Drive in extreme heat above 100°F ambient temperature
- Experience frequent hard acceleration or performance driving
Installation Details
Drain Plug Torque: 18 ft-lbs ⚠️ The LSY uses a plastic quick-drain plug with a 1/4-turn mechanism on some build dates. Confirm the style before attempting removal — using the wrong tool strips the housing.
OEM Filter: ACDelco PF66
Aftermarket Filters:
-
Bosch 3300
-
Mobil 1 M1-113A
-
Wix 57060
Pro Tip: The filter housing on the LSY is tucked near the firewall on the passenger side. A 65mm cap wrench removes the PF66 filter cleanly without spilling oil across the intake manifold.
FAQs
What oil does a 2023 Chevrolet Blazer 2.0T take? 0W-20 full synthetic oil meeting GM dexos1 Gen 3 specification (API SP / ILSAC GF-6A).
How many quarts does it need? 5.3 quarts with a new filter, 4.8 quarts without.
Can I use any synthetic 0W-20 in my Blazer? No — it must specifically carry the dexos1 Gen 3 certification. Using uncertified oil may affect warranty claims.
Is synthetic oil required? Yes — full synthetic is required by GM’s dexos1 specification for this engine.
How often should I change the oil? Every 7500 miles for normal driving, every 5000 miles under severe service conditions.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-03-31 | Source: 2023 Chevrolet Blazer Owner’s Manual