i got a new 11.2:1 je piston from mrhp with the quick seat rings and an endcap my question is maybe i should use castrol 10w40 for the break in the instructions say 15 minutes after that it will be broke in good or do i need to baby it for the first two tanks of gas?

 

Moly rings will come in within a few minutes. Warm it up where the water temp is up and go ride it hard to get good ring seal.