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2018 Audi A6Oil Type & Capacity
OEM spec from the factory service manual for the Premium variant.
Quick Answer
Oil Type
$Castrol EDGE Professional SAE 5W-40. VW 502 00
Capacity (w/ Filter)
5.00 QTS.
4.73 L
Variant
Premium
Note: Refer to Technical Bulletin 2010043 for engine oils meeting the required Audi oil quality standards.
Part numbers are for reference only.
Approximate capacity.
This vehicle's factory manual
2018 Audi A6: confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Sister site: See this spec on WhatTypeOfOil.com — our quick oil type & capacity lookup for every vehicle.
Other specs:All specs
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Frequently Asked Questions
- What type of oil does a 2018 Audi A6 take?
- The 2018 Audi A6 requires Castrol EDGE Professional SAE 5W-40. VW 502 00. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the Premium configuration.
- How much oil does a 2018 Audi A6 need?
- The 2018 Audi A6 takes 5.00 QTS. (4.73 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2018 Audi A6?
- Yes — synthetic oil that meets the Castrol EDGE Professional SAE 5W-40. VW 502 00 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2018 Audi A6?
- Using oil that does not meet the Castrol EDGE Professional SAE 5W-40. VW 502 00 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.