I design and build record-breaking flathead Ford race engines through extensive flow-bench and dyno testing. So when I went searching for the right lubricants to use I decided to try Penn Grade 1® High Performance Oils.
I noticed many advantages to this product, the most notable being the reduced engine wear. Upon disassembling my flathead racing engine (which turns 6500 rpm) there was no visible wear on rotating parts. I see the advantage of using Penn Grade 1® because it reduces the need to replace pistons, engine bearings, etc. As a result I am saving both time and money.