I heard that a "V-Twin" oil has a higher ZDDP Zinc anti wear additive than a "normal" oil. Not sure if this is correct or even relevant? ZDDP has been reduced or replaced with alternatives in many "modern" oils as it doesn't go that well with catalytic convertors the information says. The oil doesn't generally get that hot (in the UK at least) with it peaking at about 115c on a hot day stuck in traffic, all oils should manage that.