I've always ran a 5w20 or 0w20 in the Accord, always synthetic. Would there be any advantage to go up to a 0w30 or 5w30 synthetic for wear benefits? It seems to run fine on 0w20, if not a little noisy at times. It has 120K miles on it, its the Honda 2.4 motor. If not now then when, if ever would be a good time to go up a grade?