hey guys i know there is a oil post in 6 cylinder workshop at the top but trying to workout which oil i should use after using running in oil . previous ive been using hpr 15 before i rebuild it but now its change, its labeled 15w-60 extra ten. the grade number 60 is im a little consider about i think it might be a little think for this rebuilt motor. should i go try 10w-30 or can someone point in the right direction to a oil grade suitable for EL XR6 rebuilt motor?

I think Ford recommend 15w-40 for general use. I was using Nulon 10w-40 Street & Track oil after running my engine in.

Did you find the oil pressure dropped when using the Running In oil?

yeah it drops down to nearly zero but when im driving it goes back up to normal. so im not sure if its just oil sender being old or normal. i never replace the sender when the motor was out i just use the same one.

So long as what you put in DOESN'T have Penrite on the label you'll be fine.

You can use anything from 0W40 to 15W40 Most of the synthetics will be 0W40 the semi's will be 10W40 and mins will be 15W40. (that pretty general.)

Put penrite out of it an just go to some of the websites and use the 'what oil do i use' or 'find the right oil' section and you can go wrong.

This " Rebuilt " engine.....did it get a new oil pump ?????

sure did but not high volume only standard.