Started smelling hot oil while riding about 4500-5000 rpm down the trail back to the pickup. Stopped and checked things over couldn't see any leaking anywhere. Sled ran fine no codes. Is there a breather on the engine oil? Just wondering where I am missing the leak. The smell went away after another mile or so. Sled never showed any problems. Hadn't tipped it over or anything out of the ordinary. Am I worried for nothing I hope?