mjmelancon
Junior Member
Just curious, how many of you guys are running Mobil 1 Racing 4T 10W-40 oil in your bike? I put this in my bike when I first got it used about 2000 some-odd miles ago. I was stupid and didn’t realize that it was the wrong viscosity until well after I changed it. I just went over 4000 and need to change again. Will this oil weight cause any problems or is it ok? I always thought it’s some of the best, I’ve never run anything other than Mobil 1 in my car.