which oil should be added along with the break in lub to a new stroker engine? i heard Vr1 20-50 racing oil is this true? or if someone knows plz chime in

 

i just put in some cheap oil..gave a few miles then changed it then i put in some valvoline 10w 30..im sure some one else with chime in with better ideas that sound better

 

I'm not a builder, but I'd say break it in w/ conventional oil, then later, if u want, run synthetic. Good luck.

 

what does the builder recommend? btw congrats on the new setup, hope to see it at the track sometime.

 

We ran some cheap oil through to flush it out. Only a couple of good warm ups really and my builder told me to use a good quality 10W30. It is a lot colder here than California so I am using Castrol GTX 5W30.

 

First,as said you ask the builder. We personally run Valvoline 10w/40 to break in the motor. We run it for about 15 minutes,change it,then run it again for about 1k miles. That is for a street motor.

 

What Slowhawk said, only to add, I prefer a conventional non-detergent oil in a weight based on the bearing clearences for the initial startup and ring seating. Afterwards use whatever type you want based on the bearing clearences.

 

also if you are going to switch to synthetic oil id run it on conventional oil a while until the rings get seated in

 

askd the builderand he said valvoline Vr1 racing oil 20-50 to break in the motor ..

 

I'd go with the builder then. I'd run regular oil for a few miles then switch to the oil you intend to run all the time if it were mine. I'm no engine builder though.