for multiple track days on a timing chain engine that is still rather young and possibly breaking in, i'd say these results are fantastic on a cheap house brand oil, particularly iron. just my opinion, but i'd probably keep rolling with a 30wt on the street/mountains and then load up on an A40 specced 0W-40 for track work. you'll get a bit more viscosity headroom and a stout HTHS rating, but those oils aren't SO thick that you're on the deep end of 40wt territory.
hope you're enjoying your R by the way, coming from a fellow Honda fan. they are incredibly capable for a FWD car.
hope you're enjoying your R by the way, coming from a fellow Honda fan. they are incredibly capable for a FWD car.