to the op
beings your engine builder went threw the trouble of using one of the best break-in oils in the world i would think you need a good high zddp race oil. you might talk to your builder about what kinda oil you should run. if ask my opinion i would run joe gibbs race oil 20/50 or vr1 20/50.
one thing is for sure you dont need to run the break-in oil very long because it has very little detergents, it will sludge up. my brother is a machinist/engine builder and just got back from a joe gibbs event and they say detergents, such as calcium, attack zddp and cause more wear than with out so they put almost none in the break-in oil to give the most protection in the break-in.
as for oci if i had all that money in a 455 i would run a race oil and change often!! every 3 months or 1500 miles because race oils have less detergents. if you go to the track 3 times a month a one month oci would be good. the track is hard on oil.
all my circle track buddies change their oil on race day. i know your going straight but you get the idea right.
trust me, i have spent more time at the tree than a cab driver at stop lights
beings your engine builder went threw the trouble of using one of the best break-in oils in the world i would think you need a good high zddp race oil. you might talk to your builder about what kinda oil you should run. if ask my opinion i would run joe gibbs race oil 20/50 or vr1 20/50.
one thing is for sure you dont need to run the break-in oil very long because it has very little detergents, it will sludge up. my brother is a machinist/engine builder and just got back from a joe gibbs event and they say detergents, such as calcium, attack zddp and cause more wear than with out so they put almost none in the break-in oil to give the most protection in the break-in.
as for oci if i had all that money in a 455 i would run a race oil and change often!! every 3 months or 1500 miles because race oils have less detergents. if you go to the track 3 times a month a one month oci would be good. the track is hard on oil.
all my circle track buddies change their oil on race day. i know your going straight but you get the idea right.
trust me, i have spent more time at the tree than a cab driver at stop lights