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I have a 2013 Jeep Wrangler, 3.6L Pentastar V6, 107K. I just changed my oil to the Super Tech Advanced 5w-20. I am noticing loud valve noise on startup now. I Usually use Pennzoil Platinum or Havoline Lifelong Synthetic and a Jeep OEM filter. The filter is a cartridge style on top of the engine...

The dealer ended up replacing the cam phasers, gears and camshafts on the driver side. One or both of the cam shafts had some flat spots which the mechanic had never seen before. I'm not sure why the cam phasers went bad in the first place.

I have the same mystery. Curious to see what your UOA shows.

Wow impressive! Are the new Mitsubishi 3.0L's just as good? Does that engine require premium or regular gas?

Well guys, I can now think of two scenarios: 1) The engine is shedding fine flakes of metal for some reason and it is not showing up in the used oil analysis because the particles are too large and there is an absence of "dissolved" wear metal. 2) Around 48,000 miles ago, before even the...

Well guys, I found fine metal particles in my oil when I changed it. However, the UOA is showing something different. Is there any reason why they wouldn't show up here? Here is a link to my other post: https://bobistheoilguy.com/forums/ubbthreads.php/topics/4373978#Post4373978 Thank You

Thanks kschachn, so it is possible they did not show up since they were not "dissolved" in the oil?

Well guys, I'm kind of at a loss. The Blackstone Lab results came back but there are no signs of trouble. Please see the report below and let me know your thoughts:

Eric, what were the symptoms of the failing timing chain guide?

Originally Posted By: biggusblockus I have 2 Jeeps with the Pentastar and am very interested in what you find from the lab. You mention the filter. Have you pulled it apart completely and checked in all the pleats on both sides? I pried open some of the pleats and didn't find much in the way...

5W-20 Pennzoil Platinum per the manual and oil fill cap.

Hi Everyone, 2013 Jeep Wrangler 3.6L Pentastar V6 - So... the last time I changed the oil, about 4,300 miles ago, I noticed metal flakes in the drain pan. I figured they were from one of my lawn mowers. But, when I changed the oil yesterday, I cleaned the plastic drain tub very well so I would...