Pushrod cup ends turning blue

hi I use 10-30 oil usually. I oil the shafts, pushrod ends, , etc. prime the oil system run it. so far in 38 years in my 340, never had a galling problem on shafts. once engine fires, its pumping oil up there . you can rotate if you like, its a personal preference. also, I wouldn't run hollow pushrods with regular oiling to shafts. probably taking away oil to shafts? use one or the other..