Just did a regular check in on the oil I use, Mobil Super Synthetic 5w30. The 100* viscosity is now 8.4! What the heck is that? I tow to the max with this truck (2013 Silverado). I guess I’ll be switching back to Mobil 1 soon. Do people think Mobil 1 ESP 5w30 would be good in a 4.8 LS with VVT? Despite not technically being Dexos certified? Back in the regular Mobil 1 Dexos 1 Gen 2 days I had a bunch of valve clicking/ticking (thats what makes me think of using ESP).