Engine Oil

I switched to full synthetic with my first 6 month oil change before putting into storage this winter. Plan to change once a year with synthetic or 7500 miles if that happens to come first. I will only put 2-3000 miles a year on the Coach and can't see changing it more often. Store it with fresh oil in the pan in the fall and I am ready to roll come spring. I use whatever 'name brand' 5w-20 full synthetic is on sale at wally world and a motorcraft filter also purchased there. Current fill is with Valvoline full synthetic.