Absolutely, yes, use the OEM Mann filter.
As to oil...really, any 502 oil is fine.
Most oil nerds feel that Mobil 1 0W-40 is the best oil for the money and one of the best at any price. It is better than Castol 5w-40. If I were using Castrol I would use their 0W-40 for a number of reasons.
Motul is over rated. It's not a bad oil but likely not quite as good as Mobil for a lot more money.
However, I don't want to start an oil war. Go read BITOG if you care about your oil.
Why do you recommend 0w-40 over 5w-40 for castrol?
I use Liqui-Moly 5W-40 because of varying temperatures in Southern California.
Not sure what you mean. 5W-40 is a good grade for most climates for our cars. The Liqui-Moly is so-so.
There is nothing wrong with Liqui-Moly. I said it's 'so-so' only because it is often over priced and hyped. It's perfectly good oil. It it's certainly nothing special.
I'm sorry guys I have read a ton of oil threads and oil posts and the information is all over the place. I just want to make sure I put the right stuff in my car. I was a Rotella T6 guy for my Subarus, but I know it's not VW approved.
What is the VW approved/correct weight that's the best thing for my car.
Thanks
I'm stage 1 at the moment. I live in Flagstaff. I'm changing the oil tomorrow and just want to know what to keep using.