2.7 engine oil

I just got information on a recall or re-imbursment or somthing about these motors from Chyrsler. I'll try to find it and pass it along.

Chysler may re-imbuse for engine troubles

1-866-332-3746

I dont see any service bulletins or recalls for your type of make and model engine. If there is a problem with this engines timing chain, then taking it up with a class action suit may be a route to take. But if I understand you do not have a problem with this yet, correct?
If your timing chain will not last but 50k on a vehicle, I would not have the car. I have never had to replace a timing chain on any vehicle I have ever owned. (Never owned a 2.7L)
but from what I have found in the service manual, there is no listed time to replace a timing chain. You should replace your serpantine belt every 60k miles, but a timing chain should last the average life of the car.
My simple solution for never having a oil related failure on any car I have ever owned is this. Change the oil every 3k-5k miles depending on your driving style. Every 50k miles I add one quart of Dura-Lube. I am not hear to promote any type of oil additive, and I am sure it will open up a huge debate, but I just had to replace a leaking intake manifold on my grand prix. Since it had 145k miles on it, I decided to get the heads done and see if I can make the engine last another 145k miles. My machine shop complimented me on the "0" wear on the valves and guides, and I could not find any measurable wear on the cylinder walls. If I had just changed my oil regularly would the wear have been the same? Maybe. But I stick with what works for me.

I was not accurate on the possible recall. Our Jasper engine salesman gave me a copy of the Lawsuit against Chrysler on the 2.7 motor. See my above post for more info through that link, and use the phone number to make a claim.

The problem with the sludge build up has nothing to do with changing oil on required intervals, although some dealer had used that to reject claims. The problem is that there are hot spots in the casting of the block that burn the oil and create a sludge condition. This blocks oil going to the timing chain as I understand it.

I don't recall having to get into any of these motors under this situation. I have heard some be noisy.