Thanks! Sounds like a good approach for me will be to run the comp cams oil for a moment. Flush it and then run some br40 for around 500 miles.
After looking at the total seal numbers, the comp cam break in oil has some suspect numbers for break in. I would like to get it out asap and replace...
I’ll check the build sheet tomorrow for clearances. He actually likes the heavier weight for protection but said the 10/30 will work if I want to run it.
Howdy all,
We are installing a 489 roller striker motor in my old suburban this week. Per the builder recommendation, he wants 10w30 break in oil for the first 50 miles and wants moderate to heavy acceleration with engine braking to help seat the rings (we chose comp cams break in oil). Once 50...
I put the Mobil 1 15w50 in yesterday. Curious to see how it does. I can already see my oil pressure is higher at all facets (at least with this old factory mechanical gauge).