I am really interested to see if you were ever able to find the foil part? I did the same thing (thankfully a much smaller piece of foil) but have not been able to find it yet. I have filled and drained the oil 3 times, checked the oilpan after every drain, looked in the filter and have only found a few small pieces of foil. I have let it completely warm up and idle for for 10 minutes then drained it.....
Where the heck could have this thing gone? If the engine does chew it up and spit it out, what is the path it takes? Where will it end up? Any chance it makes it to the ims and causes problems there? Does it just end up in the bottom of the pan and/or in the filter?
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