That's because it won't kill your flat tappet cam, and they never tested it against anything else.
I'll say it again, in case it was missed. Oil testing is some of th most time consuming, money draining develop that can be done. Especially now, as more companies are developing oils for application specific purposes.
Testing costs money, and most guys buy products based on 2 simple things.
1. What their buddies and interwebs friends use.
2. What they can get with minimal discomfort.
Sad but true. It was that way long before I got into motorsports. It will be that way long after I'm dead.
