Maybe I shouldn’t have used the royal purple. I was told it is the best. After we changed the rear main seal I had to drain the oil so I changed the filter abs put the royal purple break in oil and am currently running that.
full synthetic oil isnt a good idea to seat the rings( break in the motor)
They may not even seat to the cross hatch by using it. Its so good it has no its too good for that.
Its all prone to allowing leaks to show up.
