Very few oils are the cause of engine issues. I've never used Brad Penn but I have a hard time believing the oil is an issue, unless they are using the wrong oil for the application.
Most of the boutique oil manufacturers make 7-8 different oils in many many grades. Could be they are using the incorrect oil for the job.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
