My grandson is 3 years old and beginning yesterday afternoon his bowel movements smell like a petroleum based product. His bowel movement this morning was the sane. The consistency is pasty. He has no health issues, intact very healthy. Could this b a little bug going around or is it something more serious. He is eating and drinking. He is drinking only water right now. Would yogurt be helpful or maybe sone pedialite. His diet is really no different than any other day. Could pool water cause this. My pool has a salt generator that produces the chlorine needed for my pool. Sometimes he ingests some of the pool water when swimming.