Have been reasonably happy with penrite myself. But Charlie would not devolve what oil or brand it is I am very curious as to the source. Other people may know more hence me starting this thread. Anyway once it's service time it will definitely be going to Charlie & when it's done I will report back. I am 100% sure he will not tell me what oil it is though.
Just on a side issue the bike seems to run a bit rough through about 2000 rpm. All other areas are fine. Put a couple of different maps through no change. No faults logged. tps all good may have a small vacuum leak. It's hardly noticeable might be a good one for Charlie to sort. Thanks for any feedback