Honestly, I think you could probably keep the engine alive just fine running cheap Shell Rotella T 15w40 diesel oil which costs $13/gallon here in the USA. It's JASO MA rated just like Motul 7100!
I went back and forth about it myself and bought Motul 300V and am not going to use it again due to what you discovered about the double ester formula. It's racing oil, not street use oil, so it wears out faster even though it initially protects better. I also find it to make the bike behave less smoothly than whatever oil it came with when the engine is cold. Almost like the clutch is too grabby or something. Just different.
I'll probably switch to a 10W40 fully synthetic oil after this. Either Motul 7100, Mobil One, or Amsoil. They all cost about the same. I believe they're all JASO MA rated. Motul 300V is JASO MA2 rated, which is supposedly better for catalytic convertor bikes.
Motul emailed me back and told me 3000 mile oil changes with 300V and 7500 mile oil changes with 7100.
I went back and forth about it myself and bought Motul 300V and am not going to use it again due to what you discovered about the double ester formula. It's racing oil, not street use oil, so it wears out faster even though it initially protects better. I also find it to make the bike behave less smoothly than whatever oil it came with when the engine is cold. Almost like the clutch is too grabby or something. Just different.
I'll probably switch to a 10W40 fully synthetic oil after this. Either Motul 7100, Mobil One, or Amsoil. They all cost about the same. I believe they're all JASO MA rated. Motul 300V is JASO MA2 rated, which is supposedly better for catalytic convertor bikes.
Motul emailed me back and told me 3000 mile oil changes with 300V and 7500 mile oil changes with 7100.