Pennzoil Syncro- mesh

I understand that but why don't you get that coating with Valvoline? I've only ever seen Pennzoil motors and Valvoline motors. My dad has always ran Pennzoil and I have always run Valvoline and he switched to Valvoline after seeing that coating on his valvecovers on his truck vs the valve covers on my wife's Durango (Both magnum 318's with similar mileage) his were all coated with a brown goo and mine were nice and clean. We both use Napa gold filters and change oil at or real close to 3000 miles.