Quote Originally Posted by aaronng View Post
A bit late, but I hope that the threadstarter stuck with the oil that he was using. If he was happy with it and had no oil consumption, then he should stick to it (Edge 5w-30). For street use, there is not much difference going from Group III to Group IV or going from 5w-30 to 0w-40.
Quoted for truth.
The only difference would be not noticeably less wear at start up with the group 4. Ive read something about group 4's being thinner for the same viscosity rating under that standard. If that was true then there wouldnt a loss of power from the 0w-40 at operating temp.