I send an oil sample to Blackstone Labs every single time I change the oil or the dealer changes the oil. As part of that analysis, I pay the few extra bucks for a TBN calculation. On my SQ5 and S3, after running a fill for 10k to 12k, those TBN values always come back greater than 1.0 indicating that there’s still enough remaining additives to continue running that fill for even more miles still.
I just run Motul. 7100/7200 or the 300v.
Years ago I went down the oil rabbit hole and now I recommend motul 7100 4T
Now if you were to get Motul 300V, there would be a real difference there. Higher end “boutique” oils have additives, such as esters that will build up a film on moving parts over time, adding a layer of protection if for some reason you were to lose oiling to that part.
Motul 8100 x-clean 5W40 seems to be the sweet spot, all of my friends drive it in EA113/EA888 engines.
Other Euro brands such as Castrol or Motul are also fine choices
I used Motul and it made shifting noticeably better
I used the Kawasaki 10w-40 for the first year I rode mine, it would always have an odd mis shift here and there. Last year I used Motul 7100 and it made a huge difference, way less shifting issues
If you are considering an oil additive, best practice is to instead use higher quality oil (I like motul) and select one which matches your use case.
Idemitsu to both, because it’s designed and tested on rotaries.
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