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  #61  
Old 02-10-2014, 12:38 PM
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Re: Miles per Gallon

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Originally Posted by Roadkill View Post
I am using the EVIC average value, periodically reset (perhaps once or twice a week). The fuel tank is large enough, and my commutes small enough (average of 15 miles per day), that I still only have to refuel relatively infrequently. I'm coming up on a refuel this week, but I doubt it will be markedly out of agreement with the EVIC data (so far that has aligned fairly closely).

Perhaps the vehicle is constantly in passive regen, or the transmission isn't getting up to operating temp, or 0 F is just too damn cold, or whatever. However, like I said, it's mostly annoying to have to apply power to go downhill at low speeds. It just seems pathetic.
You are driving a Diesel...correct?
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  #62  
Old 02-10-2014, 12:41 PM
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Re: Miles per Gallon

Seems like the really cold say 20 or less really drops the MPG. Also it really sucks fuel in the city, If I take a few drives around town my average drops at least 1 or 2 MPG even though it consists of only 10 or 20 miles out of the whole tank. Oh I use the trip meter to calc the average and so far it is close than the main one. My actual calculation is based on fuel added for miles driven. When the temp is near zero as it often has been in the AM I can just see how much it affects the MPG just by watching the instantaneous readout.

If you are going down a ramp just hit the paddle to up it a gear and it will coast just fine. It is a pain getting back into automatic but if you are going down hill and your foot is off the pedal you are using little or no fuel. In my TDI you used none, in this one it seems like it takes a bit before it cuts out the fuel. Not sure but you can really impact your MPG by keeping your foot off the pedal when going down hill. Sometimes your speed might drop a bit but for me in most cases I will give up some speed for some money that stays in my pocket.
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  #63  
Old 02-10-2014, 12:56 PM
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Re: Miles per Gallon

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Originally Posted by WK2OverlandII View Post
You are driving a Diesel...correct?
Haha, I know, right?

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Originally Posted by raptor5618 View Post
If you are going down a ramp just hit the paddle to up it a gear and it will coast just fine. It is a pain getting back into automatic but if you are going down hill and your foot is off the pedal you are using little or no fuel. In my TDI you used none, in this one it seems like it takes a bit before it cuts out the fuel. Not sure but you can really impact your MPG by keeping your foot off the pedal when going down hill. Sometimes your speed might drop a bit but for me in most cases I will give up some speed for some money that stays in my pocket.
Hey, thanks for the tip... I will have to give it a try. I was under the impression that the paddle shifters just limited the highest gear that the transmission would select, rather than popping it into a higher gear per se.

I admit I haven't checked to see how far it will decelerate without pushing the accelerator. Below 5 mph, definitely. It is also telling that if I accelerate enough to get it into 3rd gear, then it coasts more readily/without as much effort. However, speed in a parking ramp is a safety issue as well as making it more difficult to hang the constant 180 degree turns.
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  #64  
Old 02-10-2014, 02:01 PM
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Re: Miles per Gallon

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Originally Posted by Roadkill View Post
I admit, I am getting annoyed with the vehicle. Not so much the 13 to 14 mpg (~16 L/100 km for our metric friends) average I am now getting in-city... I have reconciled myself to that.

What is actually annoying is when I have to step on the accelerator to cause the vehicle to continue to proceed downhill at 7 mph. I mean, seriously, why does it require 1800 rpm to keep from slowing down? Because that's what it does if I release the accelerator. No, the parking brake is not on... it's just in "D" w/ Eco on and choosing to be in 2nd gear, with normal terrain selection.

For example, I feel like I should be able to get more than 11 mpg while driving downhill on the ramps at a parking garage. I also think it is unreasonable to have the engine have to work significantly in order to accomplish something gravity would do for free.
Are you driving up hill both ways? (My father always brought up some story like that whenever I complained about something....)
I'm getting 22mpg just driving around town. Last night I was on back roads for approx 60 miles then highway roads for another 70 all snow/slush covered. I filled up/reset the ODO before I left and the EVIC was reading 26.8 when I was done. 21 - 25.

There has to be something wrong with your SFU
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  #65  
Old 02-10-2014, 03:03 PM
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Re: Miles per Gallon

Either your EVIC is broke, you're bad at math or something is wrong with your CRD. Or all of the above.

Right now I'm doing 80% city/stop and go driving and I'm getting 22mpg.
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  #66  
Old 02-10-2014, 03:59 PM
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Re: Miles per Gallon

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Originally Posted by wraab View Post
Either your EVIC is broke, you're bad at math or something is wrong with your CRD. Or all of the above.

Right now I'm doing 80% city/stop and go driving and I'm getting 22mpg.
I agree - it's winter here too (snow on the ground for the past couple of weeks, averaging about 20-25 when I've been driving mostly, some mornings down below 0). I have small kids, so I use the remote start...a lot. Some mornings I run it twice before I get the kids into the car. I'm still getting 18-20mpg with this type of behavior, and short trips (10 mile commute, 5 on a 55mph road that ends up being stop&go sometimes, 5 in the city).

I'd keep a log of what you are doing and what it is doing for a few tanks an then if it's that bad, take it to the dealer to have it checked out. I'd want to fill-up at a couple different stations in that period too though.
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  #67  
Old 02-10-2014, 04:35 PM
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Re: Miles per Gallon

I agree that something might be wrong but if the OP drives like my son drives his well that could explain part of it too. My son idles it to warm it up in the AM, lets it idle when he stops by to chat and always uses a drive through. Then he accelerates like someone is chasing him. I do not think he got as low as the OP says he got but also did he get that in the read out or was that a calculated MPG. When I talk about cold it means I avg around 25 or 26 and not near the 28 I got on the first two tanks when it was not nearly as cold. All with winter fuel.
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  #68  
Old 02-10-2014, 06:25 PM
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Re: Miles per Gallon

Based on the other comments, I decided to kick off an individual trip odometer rather than rely on the EVIC average. So, from just this afternoon's driving it's reporting I averaged 11.9 mpg over 6.8 miles in 30 minutes. I'm fairly certain this is representative of "normal".


My guess is that it is a combination of the 0 F weather and my crappy commute.

Like I said before, I do calculate mileage per tank when I refuel. However, despite the low fuel efficiency, my commutes are short distance so I don't have to refuel that frequently. If anyone cares I will report the fidelity of these numbers when I refuel later in the week.

And no, I don't hammer on the accelerator/race to red lights/do burnouts. In fact, I am sick of treating this vehicle with kid gloves... I have been accelerating like an 80 year old and trying to preserve as much momentum as possible through turns. I will probably start driving it normally even if that means my fuel efficiency drops to 9 mpg.

That said, unfortunately the paddle shifters didn't let me get into a higher gear while going down the parking ramp, and even with my foot off the pedal while going down the ramps the EVIC instantaneous average is ~15 mpg. Just seems like it should be higher. Maybe I will try coasting in neutral instead.

Thanks everyone.
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Old 02-10-2014, 07:35 PM
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Roadkill,

Here's a thought. You drove 6.8 miles in 30 minutes. That's 13.6 mph. I think that explains a lot. Your vehicle may not be reaching normal operating temperature under such a light load. Mine gets 8 to 10 mpg at low speeds too. I live outside a Southern city of 100k population and don't have any city traffic where I would drive that slow for any length of time.

To determine if your vehicle is running optimally, can you do a test for us? If you have a flat stretch of highway where you can set the cruise at 60 after the oil temp and transmission indicators on the EVIC are both above 150*F, you should see 28 mpg or better on the instantaneous readout even with crappy winter blend fuel.
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Old 02-10-2014, 07:41 PM
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Re: Miles per Gallon

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Originally Posted by Roadkill View Post
Based on the other comments, I decided to kick off an individual trip odometer rather than rely on the EVIC average. So, from just this afternoon's driving it's reporting I averaged 11.9 mpg over 6.8 miles in 30 minutes. I'm fairly certain this is representative of "normal".


My guess is that it is a combination of the 0 F weather and my crappy commute.

Like I said before, I do calculate mileage per tank when I refuel. However, despite the low fuel efficiency, my commutes are short distance so I don't have to refuel that frequently. If anyone cares I will report the fidelity of these numbers when I refuel later in the week.

And no, I don't hammer on the accelerator/race to red lights/do burnouts. In fact, I am sick of treating this vehicle with kid gloves... I have been accelerating like an 80 year old and trying to preserve as much momentum as possible through turns. I will probably start driving it normally even if that means my fuel efficiency drops to 9 mpg.

That said, unfortunately the paddle shifters didn't let me get into a higher gear while going down the parking ramp, and even with my foot off the pedal while going down the ramps the EVIC instantaneous average is ~15 mpg. Just seems like it should be higher. Maybe I will try coasting in neutral instead.

Thanks everyone.

Your mileage sucks. I checked mine today and my Hemi is getting 12.1 mpg.

I did do better during the summer with at least 1, one hundred mile trip a week. Winter trips are usually 5 miles. In conjunction with the winter fuel, I'm happy with the results.


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Old 02-10-2014, 10:18 PM
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Re: Miles per Gallon

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Originally Posted by ExcursionDiesel View Post
Here's a thought. You drove 6.8 miles in 30 minutes. That's 13.6 mph. I think that explains a lot.
Yes, it does. I doubt the vehicle ever gets up to temp, as that was a typical round-trip separated by a few hours. Also, I wonder if I am almost perpetually in passive regen. I am actually surprised that I haven't seen the active regen warning ever show up. Then again, perhaps not much particulate is accumulating on a day-to-day basis.

I will see if I can conduct the trial you requested later in the week.

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Your mileage sucks. I checked mine today and my Hemi is getting 12.1 mpg.
So... one might even say that I have the unsurpassed, lowest fuel efficiency for a 3.0 CRD? There's a forum trophy for that, right? 19.75 L/100 km FTW!
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Old 02-10-2014, 10:36 PM
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Re: Miles per Gallon

After driving around in 8" of snow at slow speeds, my mileage dropped to 22 MPG. Normally it has been between 25.5 and 26.0 MPG in mixed city and freeway driving. For comparison, our 2008 WK with the Mercedes CRD averaged around 22 MPG.
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