If your looking for a great off the shelf oil with great ZDDP and detergent/dispersants VR1 is a great choice. VR1 conventional has 1300 PPM of Phos and 1400 PPM of Zinc along with 2000 PPM of Calcium and 490 PPM of sodium a well rounded oil for street use. I use it in the 4.0L Jeep and it purrs like a kitten. Not to mention its priced really good for a ZDDP fortified oil you don't have to run boutique oils at boutique prices to get the protection your flat tappet cams need.