Mobil 1 Vtwin 20-50w in summer and just regular 15-50w Mobil 1 in winter to save few bucks and last 50k + no issues at all.

 

I have been using synthetics of various brands most of the time with my past few bikes. What I do find is I believe that dino oil masks out more mechanical noise than syns do but the benefits of syn out weigh any noise factor ....

 

NoCoLoco, the comparison was on Amsoil's site, they listed a comparison of about 8 different oils and they beat all but Mobil 1 V Twin, it was up for awhile then Amsoil took it down, when they reposted it Mobil 1 was no longer listed, Amsoil is good oil I'm not saying that but it's funny how their testing shows they lost, they show the results then remove it, I would have never listed it in the 1st place, but it proves they all show you what they want you to see so you buy their product