It might look good in the rocker area but when it builds up in the lifter valley you will have lifter failure. A good synthetic oil will protect the valvetrain. But like the show you may have watch this morning an additive with a good motor oil will protect your motor.

I used a rottella for the breakin on my motor and it worked great. Then I used a regular motor oil for 500 miles and then switched to a good synthetic afterwards. It has 3000 miles on it now and holds good oil pressure. This is my daily driver so I put about 10K miles per year.