So im using Amsoil 15W-50 metric motorcycle full synthetic on a 2011 Triumph Bonnieville T100 865 cc air cooled efi bike.Triumph calls for Castrol power 1 15w50 full synthetic. Always used Amsoil on all my bikes and trucks with no problem but have been told by a few mechanics that using the Amsoil metric motorcycle oil on a Triumph would make the bike s valves sound louder more of a ticking noise almost every bike I owned all make this sound and its totally normal u can tell when a adjustment is needed when its real loud.My question why would Amsoil make a bikes valves sound louder its my first Triumph motorcycle after riding Harleys and Indians for many years witch are no quiet bikes by any means So far my triumph is not any louder but im just curious if anyone experianced this or heard of this with Amsoil on a Triumph