My dog may have ingested motor oil, what should i look for as symptom?

It will 100% die from it. I had one that got a hold of a can of oil. We did not know what killed it. We found it the next day. It had this black oily bm and was dead. We later found the can. He only consumed a small amount of it. So you need to get your dog to a vet now. Now we are very careful not to leave weed killers, oil, any chemical around. We loved that dog and was a very painful lesson to us.