Hey Mitch, I agree, you know your truck best, and butt feelings are reliable. I am curious why you buy premium, with 10 percent alcohol added. IMO, pure gasoline is a better choice, and will give best mileage. I do realize, that pure is hard to find in some areas. I have a couple places near me, that sell pure regular, and a couple that sell pure premium. The Holiday stations near me have a lot of pumps, but only one with pure 92 premium. I use it for all my small engines, motorcycles, snowmobiles, and yard equipment. I fill the truck with it when towing, and my butt can feel the difference too.:)
Jerry