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  #13  
Old 08-27-2012, 01:29 PM
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Re: MPG V8 - 2nd update

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Originally Posted by rchung813 View Post
I can't get close to your numbers when I drove for 6-7 hours. I just averaged about 20mpg on my V8. My speeds did vary since some towns that I drove through had limits between 55 and 65mph. I typically drove between 65 to just under 75mph, just following traffic. The only thing I can think of why my numbers can't be achieved, I drove in the north east, upper NY, where there are a lot of large hills I go through.

Also city driving I get a weak 12-14mpg. Ugh on the mpg, but yeah on the power!

Bw, jealous of your performance!
Following traffic is your problem I can not believe how badly people fluctuate their speed on the interstate. Set the cruise or really try to hold a steady foot if you're anything like the traffic I see you're accelerating wildly and then coasting in rapid succession both MPG killers. Coasting is great but if you have to accelerate back to speed you've already lost what you gained.
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  #14  
Old 08-27-2012, 02:04 PM
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Re: MPG V8 - 2nd update

I have to beleive that there is some embelishment going on here. There is always the guy who gets better mileage or more power because of this trick or mod, or that trick or mod. Unless you drove for 6 hours on a DYNO in a controlled environment with no hills or wind at all I have to call politely... BS on your MPG.. Perhaps that is what the "computer" said, but I strongly doubt that was your tank to tank actual MPG. If I reset my MPG computer and coast down a hill I get 69 MPG... honestly not trying to be a dick although it may seem like it.. But I just don't buy the numbers posted for a HEMI...
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  #15  
Old 08-27-2012, 02:57 PM
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Re: MPG V8 - 2nd update

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Originally Posted by hububub46 View Post
I have to call politely... BS on your MPG.. .
I get 22-23mpg all the time on the highway. No hills, just flat road.
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  #16  
Old 08-27-2012, 03:42 PM
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Re: MPG V8 - 2nd update

Hub', I don't depend upon the EVIC for my actual mileage result. It's fun to watch, but I use old fashioned math to get the real number...which I'm very happy with, to-date.
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  #17  
Old 08-30-2012, 05:10 PM
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Re: MPG V8 - 2nd update

I travel for work and have 29k on the clock since my purchase in April 2011. I have seen 22-23mpg (hand calculated since I track miles and fuel costs for work/taxes) on long hauls frequently and have achieved 500 documented miles on 1 tank of gas. It helps I have a 2wd hemi....
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  #18  
Old 08-30-2012, 09:14 PM
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Re: MPG V8 - 2nd update

every vehicle has a Lie-O-Meter these days, and I don't trust em.

I would feel more comfortable if I heard more hand calculation figures than what the truck tells you. MY SuperDuty tells me 18.0/tank. My hand calc tells me 13.5 (avg for a month). I may be better or worse each tank, but overall, I spend $xxx on fuel, and travel xxxx miles, on xxx gallons and I get 13.5 for the month.

convince me the WK2 (hemi, 4wd) gets the mileage everyone is raving about. i'm not convinced..... yet.
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Old 08-31-2012, 12:14 AM
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Re: MPG V8 - 2nd update

On the highway 22 mpg is not a problem. Depending on terrain and weather you may do a bit better or worse. Cruise control helps quite a bit.


Robert
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  #20  
Old 08-31-2012, 05:59 AM
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Re: MPG V8 - 2nd update

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Originally Posted by HoustonRider View Post
every vehicle has a Lie-O-Meter these days, and I don't trust em.

I would feel more comfortable if I heard more hand calculation figures than what the truck tells you. MY SuperDuty tells me 18.0/tank. My hand calc tells me 13.5 (avg for a month). I may be better or worse each tank, but overall, I spend $xxx on fuel, and travel xxxx miles, on xxx gallons and I get 13.5 for the month.

convince me the WK2 (hemi, 4wd) gets the mileage everyone is raving about. i'm not convinced..... yet.

Let me guess, you own a v6? There seems to be a lot of v6 owner venom when they hear about the real world hemi mileage. I think a lot of people have conditions that allow the hemi to stay in MDS a lot and they get excellent mileage. I'm guessing the EPA test protocol doesn't allow much MDS use because almost every hemi wk2 owner I know gets better than what's on the sticker.

I get 410 - 425 miles per tank normally in 50/50 city/highway. On long highway only trips I get 500 - 520 miles per tank. It takes just about 22 gallons to fill it up.

With that being said, if you have worse driving conditions (hills, traffic, lots of short trips, lead foot) the hemi mileage will fall off much quicker than the v6 mileage.
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  #21  
Old 09-02-2012, 06:42 PM
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Man I wish I had your guys luck my 12 overland gets 18-19 at best on the hwy and 14-15 in town! But I also live in NW MT so nothing is flat and I also have 22"x9.5" heavy chrome wheels, cat back flowmasters and Volant cold air as well!


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  #22  
Old 09-02-2012, 07:45 PM
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Re: MPG V8 - 2nd update

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Originally Posted by PECo View Post
The EVIC obviously calculates fuel economy using a moving average, not a cumulative average. What is the length of the interval that it uses (e.g., the last 1,000 miles)?
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Originally Posted by 2012 Summit View Post
I would think the moving average is indeed cumulative until you reset the EVIC. Therefore, the length of the interval that it uses is determined by the frequency of the user resetting the EVIC.
In other words, you don't know.

If you watch the fuel economy on the EVIC, it obviously doesn't track fuel economy using a cumulative average. Does anyone ELSE know the length of the interval it uses?

FWIW, I have a 4x4 V8 and get about 15 MPG local and 20 MPG highway when driving very gently.
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  #23  
Old 09-02-2012, 08:55 PM
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Re: MPG V8 - 2nd update

I don't know about you guys, but I reset my trip and fuel economy at every fill up. This way I'm able to compare per tank the evic mpg and my real calculations. On my 2012 Overland V6 4wd my evic economy is typically about 1mpg generous different than my own calculations. Again, this is after resetting at every fill up.
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  #24  
Old 09-02-2012, 10:13 PM
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Re: MPG V8 - 2nd update

V8 and 4x4... but I do get an mpg very close to yours, maybe just 1mpg less or so, due to the 4x4.

Clearly over 20mpg highway, and 18 to 19mpg combined, but I have a very gentle foot... I can't help but drive with using the vehicle's inertia as much as I can, and avoid hard acceleration, it does not bother me to do so (most of the time ). If am not careful though, the mpg do deteriorate very quickly.

Honestly, for a 4x4 with the hemi V8, I am very happy, unless you get a low power sedan with 4 or 6 cylinders (and not one with premium gas...), the mpg is not an order of magnitude away frrom other suv's.

What I love though is the size of the tank, the 400+ miles range is awersome.
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