I just replaced the rebound damping oil in my mountain bike air fork. The fork is a 2003 Manitou Black Super Air, that calls for 10wt. Manitou fork oil. Just for kicks & giggles, I used M1 0w40 instead. I have not ridden the bike since I changed the fork oil. The viscosity of the M1 at 40°C is roughly 2.5X that of 10wt fork oil. What type of performance differences should I expect from the M1 0w40 vs 10wt fork oil?