As far as I know I don't think anything above 95 will damage your car. In terms of performance I don't think you will feel a noticeable difference either with the 100 octance. I could be wrong though. We have 95 standard at the pumps here in South Africa and I add octance boosters every now and then, and honestly I cannot feel a huge difference. Granted your car will run better on the 100, so you might get a little bit more out of it than you would on standard gas. Good luck and enjoy the event
