What could mimic the symptoms of anti-freeze ethylene glycol in a dog my dog was with me for 8 days and no where near anti-freeze but that's what the Vet thinks killed him?

This happen to a dog I had years ago. There happen to be just a quarter size amount on my driveway and the dog licked it and was poisioned,its sweet so they like the taste. I thought that anti freeze like that has been banned and that it is now made not to make animals sick if they ingest it.

Spaceapex: He did not get into anti freeze as I stated in my question. I want to know what would make a dog sick for 2 days then fine for 2 days then go into kidney failure???? He was the only good thing I had in my life and I must know what did this. No ethylene glycol is not banned but they make an alternative that is made with propylene glycol. It costs more.