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I was a little skeptical over this oil since from my research it looks like a group 3 with just PAO + Ester as a base. But to my surprise My timing chain rattle on startup is gone. Its be 20+ cold starts and it makes zero rattle now. Very strange since all other far superior oils dont suppress...

I’m not arguing technical details. I’m saying the engine doesn't idle as rough with a thinner oil.

Yes.

Probably Ravenol RUP with 511 approval but that’s up for discussion.

Hey! Thanks for the reply. I just changed it out and put about 50 miles on the oil. Like I suspected the timing chain rattle is a lot more on first cold start but still within the normal noise Audi says is acceptable. Very similar to the Ravenol 0w30 VSW. Engine runs much smoother due to it...

None of your links seem to be working. Giving me a forbidden error

What?

I drive a 2015 Audi b8.5 S4. I have had the car for a few years and love trying and researching different oil purely as a hobby. I typically run VW 504 approved oils or better. I keep a rotation and have used the following Motul 300v 0w40 Pentosin Super speed 3 5w30 Mobil 1 ESP 5w30 or 0w30...