Complete Oil Specifications
Your 2023 Infiniti QX80 with the 5.6L Endurance VK56VD V8 requires 0W-20 full synthetic oil meeting API SP and ILSAC GF-6A standards.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-20 |
| API Rating | API SP |
| ILSAC Rating | GF-6A |
| Capacity (with filter) | 6.9 quarts |
| Oil Filter | Nissan 15208-65F0E |
| Normal Interval | 7500 miles |
Why 0W-20 is Critical for This Engine
The VK56VD uses Nissan’s Variable Valve Event and Lift (VVEL) system — a fully mechanical continuously variable valve lift mechanism that controls intake valve travel from 0.5mm to 8.9mm. This system allows the QX80’s V8 to behave like a smaller engine at light loads (improving fuel economy) while delivering full V8 output when needed. The VVEL control shaft and follower assemblies require instant lubrication on cold starts, which only 0W-20’s ultra-low cold-flow viscosity can provide before the oil pump builds to full pressure.
Using incorrect oil will:
- ❌ Delay VVEL lubrication on cold starts, increasing wear on the control shaft bearings
- ❌ Cause rough idle from sluggish VVEL response until oil reaches operating temperature
- ❌ Reduce the fuel economy improvements that VVEL provides at light loads
Infiniti-Approved Oil Brands
-
✅ Genuine Infiniti/Nissan Motor Oil 0W-20
-
✅ Mobil 1 Advanced Full Synthetic 0W-20
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✅ Pennzoil Platinum Full Synthetic 0W-20
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✅ Valvoline Advanced Full Synthetic 0W-20
-
✅ Castrol Edge Advanced Full Synthetic 0W-20
Any full synthetic 0W-20 meeting API SP and ILSAC GF-6A is approved. Infiniti Genuine Oil is manufactured by Nissan and identical to Genuine Nissan Motor Oil.
Severe Service Check
You need the 3750-mile interval if you:
- Tow frequently (QX80 is rated up to 8,500 lbs)
- Drive in sustained extreme heat (above 100°F) — common in Southwest US climates where the QX80 is popular
- Idle extensively with air conditioning at maximum in hot weather
- Operate in dusty or unpaved conditions
Installation Details
Drain Plug Torque: 25 ft-lbs
Replace the crush washer at every oil change. The QX80 aluminum oil pan can be damaged by overtightening.
OEM Filter: Nissan 15208-65F0E
Aftermarket Filters:
-
Wix 51356
-
Mobil 1 M1-108A
-
K&N HP-1008
Pro Tip: The QX80’s oil drain plug is located low on the driver’s-side oil pan — use ramps or a lift for adequate clearance. After draining, always wait a full 10 minutes for the oil to completely drain from the VVEL assembly at the top of the engine before refilling.
FAQs
What oil does a 2023 Infiniti QX80 5.6L take?
0W-20 full synthetic oil meeting API SP and ILSAC GF-6A.
How many quarts does it need?
6.9 quarts with a new filter.
Is the QX80 engine the same as the Nissan Armada?
Yes. Both share the VK56VD 5.6L Endurance V8 with VVEL. The Armada holds 7.7 quarts; the QX80 holds 7.5 quarts due to a slightly different oil pan design.
Can I use 5W-30 for the extra film strength when towing?
Infiniti does not approve 5W-30 for the VK56VD. The VVEL system requires 0W-20’s pressure characteristics. Stick to 0W-20 SP even under towing loads.
How often should I change the oil?
Every 7500 miles or 12 months; 3750 miles for towing or extreme-climate operation.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-04-19 | Source: 2023 Infiniti QX80 Owner’s Manual