Engine oil Mobil or Castrol
I use Mobil 1 full synthetic because I also use it for my car, and if you send you oil off to a lab after you change it, even at 3000 miles the oil was still in great shape.
Ran Mobil 1 Advanced Fuel Economy for a while and it was fine, but lately I've switched over to the Toyota branded. It's more expensive, but I only change my oil once a year because I don't drive it much, and I like the higher molybdenum content in the Toyota stuff.
My r53 loves Castrol 5w40 and Mann/Mahle filters.
Castrol Edge, I have used it forever in both my vehicles and I 10/10 reccomend it.
I used Castrol magnatec 5w30 Fully synthetic every 6-7k Miles.
The OE VW oil is Mobil 1 0W-20 ESP X2 with a zirconium marker and blue dye added for VW 508/509 requirements. The ESP X2 0W-20 is the only M1 product that meets the higher HTHS spec needed for VW 508/509. Its also API SP and has balanced chemistry for LSPI issues in other makes.
Mobil 1 5w-50 for the last few years.
I used Castrol edge 5w40 euro car when I had my car.
I always used Mobil1 High Milage oil in my old truck before I sold it.
I run 10-40 mobil1 in my VR now. had 5-30 and it ran just about the same, didnt notice any difference really.
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