I have been considering going to synthetic for about 3 years. I just had trouble justifying triple the cost of oil. Well, my beast rolled over 65K miles this month, so I made the switch.

VXNIT - No issues with switching to synthetic. Some might argue, but I would not say that you are committed to it from here-on-out. You could switch at any time. However, I would recommend sticking with one oil over time. Only reason I say that is because some oils do not mix so well, and can cause gunky build-up if mixed. Penzoil was notorious for this.

Back to the oil weight question: So I should maybe use 20W30 in the summer, and 5W30 in the winter? I live in Missouri where we have 95 degree summers, and 20 degree winters. Let me know what you all suggest.

Thanks,