following pizzaguy advice and the results of the test https://www.northamericanmotoring.co...g-results.html i got the pennzoil 5W30 at cdn$40 for 5 lt (purchased 2) and the mercedes filter adviced here too. i mean, the pennzoil platinum euro synthetic
the filter and oil in the car seemed dark, so i dont think what the dealer said that oil had been changed just 50km before is true. at least now am sure what is in there.