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Is 10/40w oil ok for my 2003 Volkswagen Passat?

I have got a 2003 Volkswagen Passat TDI 130bhp. The mechanic put 10/40w fully synthetic oil in it. Is this ok or should I change it?

Asked on 17 July 2010 by partha

Answered by Honest John
That's not official VAG spec for a PD engine. See www.millersoils.co.uk
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