Complete Oil Specifications
Your 2023 GMC Acadia 3.6L V6 requires full synthetic 0W-20 motor oil meeting GM’s dexos1 Gen 3 specification. The LGX V6 uses Dual Overhead Cams with Variable Valve Timing on all four camshafts — a system that relies on clean, correctly-viscosity oil to operate the cam phasers accurately.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 |
| API Rating | SP |
| ILSAC Rating | GF-6A |
| Capacity (with filter) | 6.0 quarts |
| Oil Filter | ACDelco UPF63R |
| Normal Interval | 7500 miles |
Why 0W-20 is Critical for This Engine
The LGX’s Variable Valve Timing system uses oil pressure to advance and retard both intake and exhaust cam timing on the fly. Low-viscosity 0W-20 allows the VVT actuators to respond within milliseconds at any temperature, delivering crisp throttle response and optimal fuel economy. Using thicker oil slows cam phaser response, causing rough running and potential cam phaser fault codes (P0011, P0014, P0021, P0024).
Using incorrect oil will:
- ❌ Slow Variable Valve Timing cam phaser response and trigger fault codes
- ❌ Increase fuel consumption due to sluggish VVT operation
- ❌ Void the GM powertrain warranty (dexos1 certification required)
GMC-Approved Oil Brands
-
✅ ACDelco dexos1 Gen 3 Full Synthetic 0W-20
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✅ Mobil 1 Advanced Full Synthetic 0W-20
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✅ Pennzoil Platinum Full Synthetic 0W-20
-
✅ Castrol EDGE 0W-20 Advanced Full Synthetic
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✅ Valvoline Advanced Full Synthetic 0W-20
Look for the dexos1 Gen 3 starburst symbol on the label. Generic 0W-20 without this certification does not meet GM’s formulation requirements.
Severe Service Check
You need the 5000-mile interval if you:
- Tow a trailer, boat, or camper regularly
- Drive predominantly in stop-and-go urban traffic
- Drive frequently on unpaved dusty roads
- Operate in sustained temperatures above 100°F or below -20°F
Installation Details
Drain Plug Torque: 18 ft-lbs ⚠️ The Acadia’s drain plug uses a captured aluminum gasket — inspect it for deformation at each change and replace if compressed more than 1mm thinner than new.
OEM Filter: ACDelco UPF63R
Aftermarket Filters:
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Mobil 1 M1-212
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K&N HP-3001
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Fram TG3506
Pro Tip: The UPF63R is the reinforced “premium” filter for the LGX. The standard PF63 fits but the UPF63R has higher burst pressure resistance — worth the minimal price difference for towing applications.
FAQs
What oil does a 2023 GMC Acadia 3.6L take? 0W-20 full synthetic oil meeting GM dexos1 Gen 3 specification (API SP / ILSAC GF-6A).
How many quarts does it need? 6.0 quarts with a new filter, 5.5 quarts without.
Can I use 5W-30 in my Acadia? No — the 2023 LGX requires 0W-20 per GM dexos1 Gen 3 spec. Earlier Acadia generations used 5W-30, but 2023 moved to 0W-20.
Is synthetic oil required? Yes — dexos1 Gen 3 is a full synthetic specification.
How often should I change the oil? Every 7500 miles for normal driving, every 5000 miles under severe conditions.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-03-31 | Source: 2023 GMC Acadia Owner’s Manual