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Discussion Starter · #1 ·
Hello again, I'm posting all over this piece! So any ways I was wondering if maybe it was just me or are others having a bit of a rough idle at times. I usually notice after I have driven for a few & then pull up somewhere & park , sit in my truck & let the wife run in some where. It feels like it's either missing or just isn't running as smooth as it seems it should for a 2012 Hemi. The truck seems to develop a slight jiggle or shudder. Almost like the engine is stumbling over it's self, but in a smooth way if that makes any sense? It's not a rough shake or shudder. But it's noticeable & it seems as though like a motor mount were worn out a bit. But like I said it's a 2012. No way should a mount be done. I've only had it for 6 moths. Any one else get this. Is it a fixable problem? :4-dontknow:
 

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All my Hemi's have done this to some degree. I know what you mean when you describe it as running rough in a smooth way. LOL
I have noticed it idles different with different fuels. When I use 91 octane Shell it idles glass smooth. Maybe it's because they don't have any ethanol in their 91? :4-dontknow:
 

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I too understand the rough idle in a smooth way. I agree with brad on this, I have topped up with premium - that I believe has no ethanol - and noticed a difference.

Brad how do you know shell doesn't use ethanol in premium, do they post it on the tank? Thanks!
 

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Discussion Starter · #4 ·
Thanks for the fuel grade tip fellas!I just filled up w/ BP 93 in addition to previously running a tank full of chevron injector / fuel cleaner in it & a fresh oil change. Damn if this truck aint a blast to drive!
 

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Mine does the same thing.
 

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mee too but i find after i run her up the road and stop at a light its perfect
 
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