I've used it on my 2015 Audi Q7 3.0T, 2008 335 with the N54 and the 2011 with the N55. The most noticeable difference was in the '11 335 and the Q7. It resolved my oil burning issues in the Q7 and the 335i was known by the first owner to go 10-15k between oil changes. The sludge that came out...
