I've thought about the Super Tech full synthetic high mileage. I'd be going a max of 7500 miles a year and that's probably pushing it a bit.
So you'd stick to 5w20 vs 5w30 in the Vulcan V6 for year round usage? I'm assuming because of the frequent short trips?
Note: Just rolled over to 150k on the clock. I've had the car for almost a year, and I'm not aware of any oil leaks.
WM Super Tech full synthetic is GOOD oil & will serve you well.