So how will breaking some of the "break-in" rules effect my engine performance down the road? I don't know why I wasn't thinking today, but I went up to full throttle on the first tank of gas. And, you guessed it, I probably went over 20mph before the 500 mile rule. It still seems to run ok. Just wondering if I might have done anything that might come back to haunt me. If anyones got any insight let me know. Actually, I don't know how fast I went cuz I don't have a speedometer yet, but I'm guessing....