How did this become another typical OIL thread? Thought it was an easy shifting thread. As for oils being good or bad, in the 49years of motor vehicle ownership, I have had one real/bad result. 1968 Yamaha DT1, used Texaco 30wt in the crankcase, as indicated, and after one MX practice day, the oil came out looking like a chocolate milkshake, foamy with no consistent viscosity. Went to a different brand, and never had those results again.
That was 44 years ago, and in that time I have never bought Texaco oils again. I'm sure they make fine products, but that one experience set a negative in my mind for Texaco, and I'm from Texas.