Good vid ... even if it's a commercial... Amsoil Sig and Penzoil Platinum are the 2 least volatile oils on the NOAC testing. Also tried to explain LSPI to the wife who gets tired of me always giving enough throttle to get 1-2 gears down shift when accelerating... She doesn't get it.
As far as cost, figuring $7-8K for a new 3.5GDI and install, you can buy 1000 qts of a high end oil (enough for 250,000 to 500,000 miles) and the cost difference is about equal to replacing the engine if you destroy it.
Maybe I'm wasting money... Don't think so... But if I have a catastrophic engine failure I won't feel like I set the stage for it.