On my last (45k) service by a VW dealer the invoice listed the oil used in my 2010 103kw TDI was 'problend 10w30'. An internet search shows Pro-blend to be a range of oils made by Valvoline and supplied to the trade. As its name implies it is a blend of mineral and synthetic oils. Valvoline does not claim the oil is approved to any VW standards such as 507 which VW insist should be used in the latest Euro5 engines. Maybe Pro-blend does meet the standard but is just not certified.

I drained the oil and replaced it with Penrite Enviro+ 5w30 not wanting to take the risk of running the next 15K on the wrong oil.

Begs the question how many VW dealers use oils which are not 507 approved. Have other Forum members similar experiences?