Oil leak and engine stalled

[upallnight]

Once you get the engine to run, if the engine is blowing a lot of smoke from the exhaust, your cats are toasted. Oil Contamination of any type will coat the catalyst and render them useless as will using any Teflon or Silicone based products on any exhaust parts or assemblies as they will contaminate the oxygen sensors and cause the miscalculation of the fuel trim.

In the states, you can not buy a used cat from a junkyard, since there a a federal law against the sale of used cats. Looks like a LOTUS (Lots Of Trouble Usually Serious).