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Just reading this now for the first time. I am fairly certain Frank was the one who closed my deal on Saturday when I bought my Cherokee there! Too funny.

Got a 2014 Limited 4 x 4. Absolutely love it. Frank was great and worked hard to make the deal happen. Good experience all around at that dealership.
 
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i did alot of research on the tiger shark engine 2.4l an i could not find any issses before i got my jeep ,not sure if it was said that mopar fiat kia hyundai got together in like 2002 to redesign this engine ,an its used in many cars suvs with very high miles jeep kia fiat hyundai all use them,there said to be some what bullet proof driven with care an proper maint,was the best thing i did read about my 2017 the engine should be the least of the worries
 
Loving my Cherokee and have no complaints so far but if I did have one, it's that I wish I had the V6 versus the 2.4. You can definitely feel times where it's a little sluggish. It's not bad and is minimal and being somewhat nitpicky, but if it were at all practical I'd love to take it in and swap out the engine for the V6. I feel like that would make it perfect. Everything else has been great, though.
 
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Just got my labs back from blackstone

Did a sample at around 38k ... looks great


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I did a sample from Blackstone labs at around 90k miles for my 3.2, and I got similar remarks. The only thing that was out of range was the flash point, but this was also oil that had over 8200 miles on it, so that could've been a factor (was 80% highway driving btw).

Otherwise, engine was very clean, and I got similar remarks when I did a sample analysis for my 2005 Mini Cooper S at 162k miles on it. Because of my painstaking consistency on changing oil on a regular basis (7500-10k on average), engine on the inside was squeaky clean.

I think some folks might be surprised how long engines can last just by routine oil changes alone.

Whether it is the Tigershark, or the Pentastar, 200 or 300k miles on these engines should be easily achievable as long as regular maintenance is performed.
 
1) is there an expected service life for the timing belt?
2) I have 72,000 Miles on my Trailhawk. Just noticed the issue with it burning oil. I've been going by the computer recommend oil changes, is there any way to speak up the notification to change oil?
 
It will last as long as the timing belt does. Just hope you change it b4 it breaks. The 2.0 turbo 4 uses a timing chain.
I'm pretty sure the Tigershark also uses a Timing chain, which shouldn't have to ever be changed.
 
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