The last 4 OCIs were Castrol Edge Professional ll03 5w30 but I decided to try Valvoline SynPower XL-III 5W30 in my TDI since I got it on sale. Both oils are VW507.00 approved.
https://www.napaonline.com/en/p/VCA881058
Previous UOAs
https://www.bobistheoilguy.com/foru...-edge-professional-ll03-5w30#Post5285993
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