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Not that I've followed 6.4's, but I've always heard it was the 5.7's. And if that's the case, and the 6.4's deal with the same issues, then why the hell do we buy these cars knowing that once you reach 150k or so that it could all come crashing down at any moment? It seems that ANY engine made today should be able to go beyond 200k miles with no issues.

If a 6.4 ruins cam shafts as well, then maybe I should just keep my 5.7 till it dies. Mine has "Forever Warranty" and wouldn't cost me anything anyway... I just didn't like the idea of someone having to tear my engine apart.
I'm trying to remember the last car I owned with that many miles on it. Can't say I've ever owned one. Closest I've come is a 40 year old car with just barely more than 120,000 yet it's on it's 3rd engine installed 2 years ago and it's got barely more than 1,000 miles on it now so I'm not sure it qualifies.

In the end I only point to this because it seems to me a car with 150,000 miles on it is NEVER going to win any reliability contests. I know lot's of well maintained modern computer controlled and fuel injected engine easily make the number and beyond...... but still......that's a lot of miles, too many to ever expect or insist that there won't be any problems at all.
 

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2013 SRT Core, 6-speed
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94 Posts
I'm trying to remember the last car I owned with that many miles on it. Can't say I've ever owned one. Closest I've come is a 40 year old car with just barely more than 120,000 yet it's on it's 3rd engine installed 2 years ago and it's got barely more than 1,000 miles on it now so I'm not sure it qualifies.

In the end I only point to this because it seems to me a car with 150,000 miles on it is NEVER going to win any reliability contests. I know lot's of well maintained modern computer controlled and fuel injected engine easily make the number and beyond...... but still......that's a lot of miles, too many to ever expect or insist that there won't be any problems at all.
Seriously? I mean...SERIOUSLY?

This is a joke, right?
 

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2012 Dodge Challenger R/T classic
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I just recently purchased a 2012 R/T classic with 99,800 miles on it the day I drove it off the car lot was actually on thursday February 14th. Took a road trip in it the following weekend put over 500 miles on the car normal driving not dogging it. Monday I drive it to work and notice smoke when I take off leaving work. Later on the CE light comes on for number 2 cylinder misfire and the plug was covered in oil. I did replace both plugs and coil pack but the car is still smoking has anyone else had this problem with the 5.7 hemi? It has 100,400 miles on it now
 

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2016 Challenger RT Plus
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217 Posts
I just recently purchased a 2012 R/T classic with 99,800 miles on it the day I drove it off the car lot was actually on thursday February 14th. Took a road trip in it the following weekend put over 500 miles on the car normal driving not dogging it. Monday I drive it to work and notice smoke when I take off leaving work. Later on the CE light comes on for number 2 cylinder misfire and the plug was covered in oil. I did replace both plugs and coil pack but the car is still smoking has anyone else had this problem with the 5.7 hemi? It has 100,400 miles on it now
Back to the dealer she goes.
 

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2018 Dodge Challenger T/A Plus in Yellow Jacket w/5.7L and A8 automatic
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I just recently purchased a 2012 R/T classic with 99,800 miles on it the day I drove it off the car lot was actually on thursday February 14th. Took a road trip in it the following weekend put over 500 miles on the car normal driving not dogging it. Monday I drive it to work and notice smoke when I take off leaving work. Later on the CE light comes on for number 2 cylinder misfire and the plug was covered in oil. I did replace both plugs and coil pack but the car is still smoking has anyone else had this problem with the 5.7 hemi? It has 100,400 miles on it now
I’d be interested in knowing if the two spark plugs you changed were the same brand and type as adjacent cylinders. Of course.....that would require pulling more spark plugs.

There’s a decent chance that the problem existed prior to purchasing....but the previous owner (or maybe even the dealer) performed a swap hoping to hide the defect and at least garner a sale.
 

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2012 Dodge Challenger R/T classic
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I’d be interested in knowing if the two spark plugs you changed were the same brand and type as adjacent cylinders. Of course.....that would require pulling more spark plugs.

There’s a decent chance that the problem existed prior to purchasing....but the previous owner (or maybe even the dealer) performed a swap hoping to hide the defect and at least garner a sale.
The plugs I pulled were autocrafts an dmm I went back with oem champion plugs
 
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