Audi 'Long Life' service Oil

[manwa9]

Just had my Q3 serviced. The documentation indicates that Castrol GTX 5w-30 has been used for the replacement engine oil. The service interval on my car is set for 'Audi Long Life Servicing'. Is GTX a suitable oil for this longer service period?

[Belle427]

You would need to know the oil specs as there are many, they should have used the correct oil.
Who serviced it?

[Sheepshanks]

It could be this stuff - https://www.broughtonlubricants.co.uk/castrol-gtx-... - which would be fine.

Dealers just seem to write any old thing on service invoices, which is odd as there must be a few people who get rattled by seeing a psec that doesn't make sense.

[Murph7355]

Main dealer? How much did they charge you per litre?

(Likely a VW 504 spec oil. It'll be fine).

[Dr G]

Audi used one oil for years regardless of service interval, a fully synth 5w30.

Fixed interval used this.
Longlife used this.

Newer engines use a 0w20 regardless of interval also.