I've recently supercharged my coyote engine (2011 Mustang 11950 miles). I'm running a mild tune and boost and it's hitting 625 to the wheel. I'm on my last Penn Ultra oil (pre gtl) change and am looking for a recommendation. Stick to 5W20 or go up in weight and any particular flavor Penn, Mobile, Amsoil etc. Brands in favor vary on the different mustang sites. Cold weather not an issue as I'm in central Florida. Thanks for the input, not much info surfaced when searching.