Complete Oil Specifications
Your 2023 Audi Q8’s 3.0L TFSI V6 requires 5W-40 full synthetic oil meeting the Volkswagen Group VW 502.00 / 505.00 specification. These are Audi’s proprietary VW Group standards — they are stricter than generic API or ACEA ratings and are the only specifications that should be used to maintain warranty coverage.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 5W-40 |
| API Rating | VW 502.00 / 505.00 |
| ILSAC Rating | VW 502.00 |
| Capacity (with filter) | 6.9 quarts |
| Oil Filter | Audi/VW 06M115403Q |
| Normal Interval | 10000 miles |
Why 5W-40 is Critical for This Engine
The Q8’s EA839 3.0 TFSI uses chain-driven timing, twin-scroll turbocharging, and Audi’s valvelift system. VW 502.00 mandates a specific additive chemistry compatible with Audi’s catalytic converters and engine internal coatings. A thinner oil such as 0W-20 will not maintain minimum hydrodynamic film thickness in the connecting-rod bearings at high sustained RPM — a known vulnerability of this engine family when under-lubricated.
Using incorrect oil will:
- ❌ Risk connecting-rod bearing failure if minimum film thickness drops below design limits
- ❌ Violate Audi warranty terms — VW Group specification oils are contractually required
- ❌ Cause sludge buildup if generic API SN oils without VW approval are used
Audi-Approved Oil Brands
-
✅ Castrol EDGE Professional OE 5W-40
-
✅ Mobil 1 ESP Formula 5W-40
-
✅ Liqui-Moly Synthoil High Tech 5W-40
-
✅ Shell Helix Ultra 5W-40
-
✅ Pennzoil Platinum Euro Full Synthetic 5W-40
Always verify the VW 502.00 or 502.00/505.00 dual approval appears on the container. The VW Group approval number, not the brand name, is what qualifies an oil for use in this engine.
Severe Service Check
You need the 5000-mile interval if you:
- Drive in sustained high-speed motorway conditions at 80+ mph regularly
- Tow at or near the Q8’s rated capacity
- Use Sport or Dynamic driving mode aggressively in hot weather
- Operate in ambient temperatures consistently above 95°F
Installation Details
Drain Plug Torque: 26 ft-lbs
The Q8 uses an aluminium oil pan. Replace the metal drain plug gasket at every oil change — reusing a compressed gasket risks a slow leak.
OEM Filter: Audi/VW 06M115403Q
Aftermarket Filters:
-
Mann-Filter W 811/80
-
Mahle OC 1039
-
Bosch 0451103369
Pro Tip: The Q8 uses a cartridge-style filter in a housing on the front of the engine. An 86 mm or 36-flute oil filter socket wrench is needed to remove the housing cap without damage.
FAQs
What oil does a 2023 Audi Q8 3.0L TFSI take? 5W-40 full synthetic oil meeting VW 502.00 / 505.00 standards.
How many quarts does it need? 6.9 quarts with a new filter, 6.3 without.
Can I use 0W-40 instead of 5W-40? Yes, if the 0W-40 also carries VW 502.00 or 503.01 approval. The specification matters more than the exact viscosity grade.
Does brand matter if the VW approval is on the label? No — any oil carrying the VW 502.00 or 502.00/505.00 approval from any major brand is acceptable.
How often should I change the oil? Every 10000 miles under normal conditions, or 5000 miles under towing or sustained performance use.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-06-06 | Source: 2023 Audi Q8 Owner’s Manual (4M5012721BF)