My GSX1100G is especially touchy on the oil it tolerates. This shows up in how easily the tranny shifts. I used Mobil1 for years because it gave the best tranny performance. It'd go 4-5K with smooth shifting. However recently the cost of Mobil1 went from $4 per quart to $7.50 for the 15-40. I went to RotellaT and the bike shifts just fine for the 3-4K I go between changes.
So, if you're worried about seal problems (no comments about blown seals, fur seals or harp seals please) go with RotellaT. $9.97 a gallon at Autozone.
So, if you're worried about seal problems (no comments about blown seals, fur seals or harp seals please) go with RotellaT. $9.97 a gallon at Autozone.