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· Premium Member
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I've read about the Pentastar engines and the rockers, etc.. To be honest the
engine has been around since 2010 and are still being used in 2021 so they
must be doing something right. My money is on the PTU crapping out. I guess
I really don't care since I have Lifetime Maxcare on both Cherokees..

So, is the 3.6L Pentastar engine reliable? Summing up, we can say the Pentastar 3.6 reliability is way above average. It is time-tested well enough, and over 10 million Pentastar engines were produced to date. Despite that they had some issues early on, the 3.6L V6 Pentastar is great, durable, one of the most reliable engines available on the market right now. With proper maintenance, the 3.6 Pentastar engine longevity is around 250-300k miles (there are even a few cases of the Pentastar last up to impressive 500,000 miles).
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Feb 16, 2019 The automaker has just announced it has built its 10-millionth Pentastar V6, which was first introduced in 2010 for the 2011 model year and has since undergone numerous updates. It will soon be available in 16 FCA models across five brands in a total of 10 vehicle segments.
They've been around... I wonder how many rocker failures they had in over 10 million
units to date? Oh well IF it does happen, $100 out of pocket...
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Reactions: UN4GTBL and Lindy

· Premium Member
2,687 Posts
Wow.. seems this thing got people going.. test drove a Cherokee, and GC today. Liked both,
Cherokee says to give avg 21 mpg, GC will give 17 MPG (combined), so I might go with Cherokee.
Every car engine can fail..
Actually the Cherokee is the only vehicle I've owned that gets better MPG than the
sticker shows. I get 22 in town, and with remote starts. I can get up to 30 on the
highway if I'm taking it easy. I averaged over 25mpg on our last trip going up some
mountains, but then again you coast down the other side!
Then again you don't buy a Jeep for good mileage.... ;)
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