Quote:
Originally Posted by McLovin
If they burned the oil off, how can the oil be in the mufflers?
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Good question.
If cats are removed as mentioned it makes sense. If not then I bet cats should be removed as they are probably coked up inside.
I see PID's (operating parameters) with slightly better than basic OBD monitors that indicate cat temps of 1,400F when operating properly. Dump a consistent spray/mist/droplets of oil into them and they will be rendered ineffective and the coked oil on the catalyst matrix would increase back pressure as well as allow oil to pass through given the lower temp of the cats.
Now I just said that as opposed to doing a multi-car test where I split cats apart after oil soaking.