I use Rotella T5 (15W-40) in my FJ-09 (same engine as the FZ) and (10W-30) in my Honda NC700x. The T5 improved the shifting in both bikes. I've had the Honda longer an also used T6, but the shifting is better with T5. FWIW, Shell states that the T4, 5 & 6 are compliant with the MA spec.