Originally Posted by jmichaelre
Is it necessary to use a breakin oil other than what is provided by the cam mfg? Seems odd to me to throw in a $15 bottle of additive to run 30 minutes and drain out, or should I add that stuff after the cam breakin?
yes! it is very necessary. those 30 minutes are the most important 30 minutes that engine will run. Don't be cheap, use the additive on every oil change. If you can't afford it, take a bus.