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  #13  
Old 07-01-2012, 07:10 AM
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Re: V6 or V8?

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Originally Posted by jgc4ever View Post
I have the V8 and like it. I don't think I'd be happy with the V6. As for the Diesel, a Ram truck with a diesel engine pulled up at the gas station I was at, on the pump opposite me. He left it running and it was LOUD, obnoxiously loud, in park. And the dummy filled up with gas with it running.
DONT KNOW WHERE U LIVE BUT IF ITS IN one of the areas thats sweltering hot that may be the reason they left it running (i know i would have) i rarely shut off to fuel.
in addition comparing the ram diesel to the jeep diesel is apples and oranges
the ram is a cummins and is an inline 6 also you didnt mention how old the ram was but most of the older diesels were obnoxiously loud
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  #14  
Old 07-01-2012, 07:30 AM
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Re: V6 or V8?

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Originally Posted by jgc4ever View Post
I have the V8 and like it. I don't think I'd be happy with the V6. As for the Diesel, a Ram truck with a diesel engine pulled up at the gas station I was at, on the pump opposite me. He left it running and it was LOUD, obnoxiously loud, in park. And the dummy filled up with gas with it running.
The 2006 and newer RAMs are quiet as a mouse unless modified, 2000 and older RAMs are noisy (a common complaint). With the advent of electronic injectors, Dodge was able to play with fuel timing (multiple bursts) to quiet things down. About the only thing you heard when my 2006 RAM was idling was the clicking of the injectors.

Deisel is much less volatile than gas, much safer to use. You have to try hard to get it to burn unless its a mist. A spark is not going to set it off. You could dowse a cigarette but in it. Refueling with engine running is not an issue, although not recommended.

Older engines with mechanical injectors use very little fuel at idle, perhaps a cup over night. Newer units with electric/electronic injectors use more fuel, and they should not be run at idle for long as they need fuel for cooling among other things. The high compression engine takes a big battery and starter to get things going, so some just leave the truck running (in better neighborhoods only). In the cold, it helps prevent fuel gelling and freezing (there is always a bit of water in diesel)

You can't compare much about the car based CRD used in the Jeep to the industrial (truck) based Cummins used in the RAM. About the only thing they have in common is they use the same type of fuel.
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  #15  
Old 07-01-2012, 08:47 AM
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I have driven my v6 overland for almost 4000 miles now, and there are times where I wish it had more power off the line. But I am saving over $50 a month on gas so to me it is worth the trade off.
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  #16  
Old 07-02-2012, 09:21 PM
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Re: V6 or V8?

Well the Ram was a rather large truck and looked brand new and it said CUMMINS on the side. I did recently read in the Diesel thread that someone overseas with the Diesel WK2 said it's quiet. Also, I live in Nebraska and it has been 100 degrees lately.

Thanks ColdCase. So what do you and others think of the CRD in the WK2? Do you think it's a good choice? Will techs know how to deal with it? How reliable is it? thanks
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Old 07-06-2012, 09:54 PM
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Re: V6 or V8?

My first impression of first day driving our new V8 JGC, relative to performance only: Spent an hour behind the wheel today, half an hour one way in pure "city" driving with lots of stop and go with no speeds above 40mph and then half an hour back almost all highway. Ambient temps hovered around 100* both there and back.

"City" impressions
-The GC feels downright sluggish unless I kill the throttle. I've seen some comment that this may be due to the tranny "learning" my driving style, but I've noticed stuttering during throttle tip-in and a general reluctance for it to get up and go at part throttle. This was a first time for me, had not experienced this on the test drives at all.
-What I did expect was the hesitation for the tranny to kick down a gear or two after mashing the gas, I hope there's a way to rectify this.
-I did play with the Autostick briefly and it seems like somewhat of a solution.
-Gas mileage generally did not stay above the 12/13mpg range according to the EVIC.
-Quadra-trac/drive whatever was in Sport mode the whole time.

Highway impressions
-Much more pleasant to drive on the highway although I'm sure it was due to the fact that I wasn't experiencing the stuttering.
-Still fairly unresponsive to throttle input unless I gave it more than 50% it feels like, then it moves well enough.
-Still more than a full one-second count for the tranny to kick down when requested. Still learning I suppose?
-MPG much better on the highway of course, tried my best to coast where possible and kept speeds between 55 and 60mph. (Pissed some people off, apparently.) Saw MPG above 20 most of the trip, according to the EVIC. Yes!

Overall, EVIC says my average MPG was 13.6 at the end of the trip. Ouch, but I think it takes into account some 35 minutes of straight "city" driving in the morning when she had it. Am I glad I got the V8? Only other option was the V6, and given how I feel already about my current power levels, I know I'm at least glad I didn't get the V6. Would be nice if the tranny learned a little quicker but if necessary I'll revert to the Autostick to get my acceleration kicks.

EDIT: For reference, I've been driving a 2010 Honda Fit Sport for the last few weeks after having sold a 2006 Mitsu Evo RS (bone stock) to make room for the JGC. My sense of power, speed and acceleration aren't skewed in any way, I think I just need to get used to the Hemi's power delivery. On paper it seems like it should satisfy most of my needs. I should mention also that I had a bit of a pucker-moment when I made a left-lane switch and saw a FedEx semi coming up on my a lot quicker than I expected, and the tranny again refused to kick down and deliver the goods.
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  #18  
Old 07-07-2012, 01:07 AM
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Re: V6 or V8?

Once you get ~1000 miles on her she will be feeling pretty good, but there will still be some rough spots.... the gearing on these is so tall. I think they program a bit of torque control in for the first 1000 miles or so. Driving in 5 will provide a bit more response around town, and in traffic condition where you want to be ready to accelerate promptly. Mine started to jump off the line about 1000 miles and continued to drive better as I reached 10,000 miles. But there are times I wish it was in a different gear and the second(s) delay is annoying.
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Old 07-07-2012, 09:13 AM
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Re: V6 or V8?

Every cars throttle takes time to get used to. I find the jgc v8 seems to get quicker with time as i subconsciously learn to adjust to her faults, tranny, and throttle position.

I find the v8 has plenty of power and am pleased with it.
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  #20  
Old 07-07-2012, 10:19 AM
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Re: V6 or V8?

You're also coming from a pair of vehicles that combined don't weigh as much as the JGC. Lighter cars will feel like they have improved throttle response due to increased weight transfer.

I think a lot of what you're feeling is it being a new, unbroken in engine, and software that's still confused. My Jeep doesn't take near a second to downshift when I need it to go.

It's a different sensation, in mine, when I use low throttle, it doesn't feel like a rocket, but it easily keeps up with traffic accelerating off a light. I routinely drive rental cars and company cars as well for work, and most of the smaller and lighter cars driven in that do in fact feel faster, you press the throttle in and you can feel and hear the engine going, but you're using a lot more throttle to just keep up with the traffic.

The JGC IMO feels more luxurious in its drive than sporty, like a large luxury sedan would feel more or less. Which is great because that was exactly what I wanted.
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Old 07-07-2012, 11:16 AM
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Re: V6 or V8?

Thanks for the input guys. Good point on the whole issue of weight, engine noise and perception of speed, both cars are notably louder and lighter than the GC. We're going to again be putting a nice mix of city and highway miles on her today so I'll see what changes, maybe due a little of the suggested Jeep break-in procedure on the highway too.

And it looks like we'll again be doing it in +100* weather, I imagine that can't be helping.

EDIT: Ok need some clarification here please - does the 6-speed in the V8 have the auto-stick or otherwise "manually" shiftable gears? Everywhere I look I can only verify that the V6 has a shiftable 5-speed but nothing on the 6-speed. I thought it did, and that's what I was doing last night when driving around, but the manual only talks about ERS which doesn't seem to be the same as Autostick, which the manual only details for the SRT-8.
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  #22  
Old 07-07-2012, 04:15 PM
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Re: V6 or V8?

The V8 is slappable to set the highest gear the trany will up shift to (limit) until the engine red lines at max rpm. The trany will shift up at that point. Otherwise the trany shifts as programmed. It does not allow you to manually select a specific gear ratio. The gear displayed in the Avic may or may not be the gear you expect.
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  #23  
Old 07-07-2012, 04:29 PM
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Re: V6 or V8?

Thanks for clarifying.
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  #24  
Old 07-20-2012, 09:58 AM
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Re: V6 or V8?

Is the 5.7L V8 a pushrod motor?
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