Break In Oil! Which one to use for my 440?

[33 IMP]

Can't beat this deal. I used it in my racecar. Went just as quick as the 5w30 Synthetic that I swapped out after break-in.
D[UIRL="[URL="https://www.summitracing.com/parts/luc-10631-1?seid=srese1&gclid=EAIaIQobChMIppqt5oGT-wIV6SZMCh09bwULEAQYBSABEgIOqvD_BwE"]Lucas Oil 10631 Lucas Engine Break-In Oil | Summit Racing[/URL]"]Lucas Oil 10631 Lucas Engine Break-In Oil | Summit Racing[/URL]
Doug

Doug's right! $27 for five qts of breakin oil is a h3ll of a good deal!

 

[68_661charger]

I used Driven 5w30 for break in then switched to VR1 10w30. Cam is still alive!

 

[Ben Treinen]

I’ve used BR-30 successfully as well on several engines.

Did you use BR-30 and then switch to a heavier weight service oil? i typically run VR1 20w-50 wondering if the 30w break in oil would lead to any issues with my setup