actually i am a amsoil dealer and do sell quite a bit of every weight and version u just listed...the first three are amsoils first line i guess you could say. they are the original formulas just updated time to time. the xl weigts are basically an extended life for longer oil change formulas either would work fine for you but personally i would stick with the say 5-30 high performance one and change the oil every 5000-6000 miles. i personally use that one and it is a very good oil. quality wise that one is the better of the two