Originally Posted by larryboy
Ahh, ok and now you know you could drop the 200ml in it and run to 7,000 miles.
True but as the viscosity drops so the the ability to remain stable under shear.
I notice a significant reduction in the shifting performance of the bike even when new as the miles on the oil get over 5K. While not a deal breaker I prefer to change at that interval and I think in doing so the fact I have in effect what is still a like new motor is conducive to maintaining that practice.
Next step will be to perform a leak down test and see how the rings and valves are doing. Considering the valves have not needed adjustment in the last three valve checks I am not too worried.