Originally Posted By: Jim Allen
Yes, the filter, unless it's been changed before. 75% of the contamination generated over the life of an automatic occurs in the first 5000 miles of operation. That includes the "built-in" crud from manufacturing and the break-in materials. All that is in the filter now, if it's not flowing in the oil. The second time around is more optional in my opinion. I would also suggest an inline filter in the return cooler line.
That makes sense, filter change it is then.
What the difference between the magnefine and the performance magnafine? Besides a boatload of $. The magnefine site doesn't say anything about it.