Engine oil for 40 TDI - 0W30 or 5W30?


Registered User
Rather confused as to which Castrol oil i should be buying. The one Audi supplied with my 40 TDI - and the one they recommend - is 0W30 VW50400/50700. However Castrol don't mention VW504/507 on their 0W30 oil, only on their 5W30 oil. Very confusing.....


Paul Duckworth

Registered User
I've bought 0W30 oil for top ups in the past but on the last service (last week), I'm pretty sure they specified that 5W30 was used instead.