Engine oil Castrol or OEM Audi
I really like Castrol oil. I used the VW High Performance twice, and it was fine, but I still preferred Castrol.
The approach to go with 10W40 is absolutely right - from my experience the best oil for that kind of engines! Take an expensive Castrol Magnatec Oil and it runs well.
As an aside, all the oil used to be Castrol and has now transitioned to a VW boxed product produced by Mobil 1. THAT is the correct oil.
I've switched to Castrol Magnatec 10W-40 which seem to do better wrt oil pressure.
Try using 5w30 castrol from walmart black container with green writing, since switched been driving 2.7k with in 2-3 month oil on the same level
I'm running 5qt 5W40 full synthetic oil (Castrol Edge, to be specific). The oil is changed yearly cause I never get close to the 10k miles suggested by VW for an oil interval.
Went to the dealer today and got this. 5 QTS CASTROL EDGE PROFESSIONAL 0W20 LONG LIFE IV (RED CAP) 1 VW Oil filter, Volkswagen 04E 115 561 H 1 Drain plug with washer $74.99
I ran Castrol 0w-40 euro blend for both my e46s and the stuff was awesome
I did an oil change at 6,300 miles on the factory fill. I sent it in for a UOA through Blackstone labs, but I'm not sure how to attach it here. The TBN showed some life still left in the oil, they suggested trying 8,000 miles next.
And one thing I would definitely do is get the Castrol out of there if you intend to keep the car long-term. The recent changes to the oil we are delivered at the dealer is crazy!!! It's not the same as it used to be and I can tell a huge difference in my cars. Have had excess oil consumption, lower MPG and quicker deterioration of the oil over last 6 months using Castrol(and I work at dealer)
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