i plan on changing the oil in my wrf after one more ride on it, by then it will have about 2 hours or so on it. Is this too soon to use a synthetic? I have had such good results with the mobil mx2t premix i would like to get the syn. in the thumper right away, not too mention i hate going to a dealer for anything!! how long should i wait ???? thanks,,,,craig williams jax,fl.