Another vote for the Rotella t6 5-40.
I bought a used Honda foreman 450 ES that had just been dealer serviced so, of course, it had the Honda brand juice in it.
Like you said, it was ok at first, but then the shifting became gradually more clunky. I had more valvetrain noise hot than I would have liked as well.
I ran some Mobil 1 15-50 since I had it on the shelf and had good results with it in my Honda 919. It was fine until winter set in and the shifting seemed sluggish so I switched to the Rotella. Even on the coldest days it now shifts immediately but with no clunk, and the valvetrain is dead silent.
I like it so well I'm going to put it in the 919 this summer.
I bought a used Honda foreman 450 ES that had just been dealer serviced so, of course, it had the Honda brand juice in it.
Like you said, it was ok at first, but then the shifting became gradually more clunky. I had more valvetrain noise hot than I would have liked as well.
I ran some Mobil 1 15-50 since I had it on the shelf and had good results with it in my Honda 919. It was fine until winter set in and the shifting seemed sluggish so I switched to the Rotella. Even on the coldest days it now shifts immediately but with no clunk, and the valvetrain is dead silent.
I like it so well I'm going to put it in the 919 this summer.