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50 straight weight miracle

48K views 79 replies 33 participants last post by  georgedouglas  
resurrecting this thread. Looking to stop the marble race in my 13 RGC. I have tried Amsoil, Redline, Castrol both Syn and Dino all 20/50 with no relief. I want to try a 50 weight but want to know how low of temp it can go to safely. I know what the specs say. Right now in Mass it is still 75 during day. I am not a cold weather rider. Consistently below 50 and I am not out much. I understand the cold start issue but will it do the bike harm at start and if I let it warm up before take off. Thanks for the time