Trailryder42
Member
- Feb 6, 2000
- 295
- 0
Looks like the Mobile 1 15w50(red cap) formula has been changed. Their new Super Syn oil is now SL classification. I've been using the Mobile 1 in my XR400 with no ill effects, like countless others. My question is: are we gonna be able to use this new formula without it screwing with the clutch, or does it now have the friction modifiers in it that we try to stay away from?