I have recently put The 20W50 in my speed triple and noticed on the Mobil 1 Web site that they recently changed the labeling on the 20w50 and under the specs it does not list a MA rating on the 20w50 but it does on the 10w40 according to their web site. Did they change the formula recently (last month or two) on the 20w50? Since I switched to M1 a month ago I noticed my bike runs hotter than it did on Motul 300V. I also talked to the guys at Maxima and I think I will try their Extra 15W50 on the next change. The extra was able to neutralize acids better than 300v. The maxima guy also said the "Extra is already a candidate for the ultra new JASO T903:2011 testing that will begin in the coming 2 months. This will be a certified oil under the newest wet clutch credential."
Last edited: