No, no. That would not happen. For one thing, they wouldn't know if you changed the oil. And for another thing, you can't change it too often, only too little. Really though, you will be fine going with 600 miles if you didn't do a hard break-in. Those of us who change early are mostly doing hard break-ins which stresses the oil much faster and we don't know for sure that we needed to change it sooner either. It's only if you don't do the 600 mile service and then have engine problems that they would question the warranty. I am so certain that this motorcycle is solid that I didn't even record anything...never do. The only way I would worry is if the engine sounded bad or acted bad and the dealer would know about that sooner than 600 miles. They just build engines better today. I have never even heard of a catastrophic failure of an engine in recent years outside of the race track.