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  #13  
Old 05-04-2011, 01:35 PM
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Re: Recent MPGs on a Weekend Trip

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Originally Posted by mhassler View Post
I had 4 guys with overnight bags & golf clubs and two coolers of beer with ice.

Average for the entire trip: 18.4mpg
My kind of road trip! That is indeed respectable. I got north of 20 mpg on a trip to SC over Easter weekend and have maintained around 17.5 since then with some careful driving. On Monday I played a golf tournament in Hunt Valley MD and got up near 19 mpg again on trip up and back from Bethesda.

Did you have one of those hitch-mounted rack systems or did you use rooftop stowage for any of your stuff? That's a lot of gear you took. I have to take my driver out of my golfbag in order to fit my bag tight up against the back seats.

Finally, the most important question-- How'd you shoot?
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  #14  
Old 05-04-2011, 02:36 PM
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Re: Recent MPGs on a Weekend Trip

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Originally Posted by dubwarren View Post
Great thread, I'm taking a road trip in a few weeks and will run 89. Sounds like 89 will help the mpg's slightly, is that correct?
Well, if you have the Hemi, then yes. But that's only because the Hemi is tuned to run on 89 vs. 87.

In general, as long as you're running what the manufacturer recommends, increasing octane does NOT boost economy.

And on the highway with the Hemi I get about 20-21 MPG, running 70 MPH. With the Pentastar, I get 22-23. So yeah, about 2 MPG difference.
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Old 05-05-2011, 08:20 AM
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Re: Recent MPGs on a Weekend Trip

Similar trip this past weekend but with just two people and a cat, as opposed to four adults. Got 22.7 MPG with the V6. I was pleased.

Edit: Oh yeah, only have about 2000 miles on her so far (the Jeep, not the cat!) so I'm hoping it gets even better in a couple of thousand.
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  #16  
Old 05-05-2011, 06:06 PM
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Re: Recent MPGs on a Weekend Trip

CPerez,
Lets just say that I lost a lot of holes, only 1-ball and many, many beers

Na, all in the rear area. Placed all four bags down in a row (small Adidas bags) against the 2nd row and placed the coolers closest to the liftgate and laid the clubs atop. The coolers had the beer and ice in them - the old beer store parking lot shuffle - so they were ready to go on Friday night.

The fellas wanted me to steal the wifes R350 (four captain's chairs) but I didn't want to move the car seats and thereal reason.. I didn't want her driving my Hemi all weekend with the kids.. the reason my car interior stays clean

bpmcgee,
This 87 vs 89 topic has been discussed a lot. Here is the excerpt from the manual:

This engine is designed to meet all emissions regulations and provide satisfactory fuel economy and performance when using high-quality unleaded gasoline having an octane rating of 87 to 89. The manufacturer recommends the use of 89 octane for optimum performance. The use of premium gasoline is not recommended, as it will not povide any benefit over regular gasoline in these engines.

The way I read it... 89 provides optimum performance but not necessarily optimum fuel economy. If it did, it would have made a similar, declarative statement. But, hey that's me.

We will see what happens next weekend....

p.s. - I have roughly 6000-miles now, purchased in Nov 2010. Also, I have a heavy foot... I like to get up to speed and I ran in Sport mode (still unsure how and if that affects performance & fuel economy or if it is all in my head) as it was sunny & dry.
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  #17  
Old 05-05-2011, 09:47 PM
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Re: Recent MPGs on a Weekend Trip

Ok I have to chime in here and ask you all a question. What method are you folks using to determine your fuel milage. The reason I ask is because I see some people stating that the evic is reading xx mpg. I'm in Canada but the evic should work the same way. The slider bar at the bottom shows you real time of how many liters of fuel you are burning at that exact moment in relation to how much you are on the throttle. The "avg" reading displays how many liters of fuel you are using for every 100 km of driving. This means that it recalculated every 100 km and changes the number accordingly. So to me when someone says the evic is reading 22.4mpg (evic) then that's no very good milage. When I hit the highway and tap er cool my evic "avg" number decreases to around the 15.x mark but in stop and go city driving the number increases to 19+.

Is there a way to have the evic show actual fuel milage or am I just misunderstanding what people are posting as there fuel milage?
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Old 05-08-2011, 09:40 PM
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Re: Recent MPGs on a Weekend Trip

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Originally Posted by LiquidOxygen View Post
Ok I have to chime in here and ask you all a question. What method are you folks using to determine your fuel milage. The reason I ask is because I see some people stating that the evic is reading xx mpg. I'm in Canada but the evic should work the same way. The slider bar at the bottom shows you real time of how many liters of fuel you are burning at that exact moment in relation to how much you are on the throttle. The "avg" reading displays how many liters of fuel you are using for every 100 km of driving. This means that it recalculated every 100 km and changes the number accordingly. So to me when someone says the evic is reading 22.4mpg (evic) then that's no very good milage. When I hit the highway and tap er cool my evic "avg" number decreases to around the 15.x mark but in stop and go city driving the number increases to 19+.

Is there a way to have the evic show actual fuel milage or am I just misunderstanding what people are posting as there fuel milage?
I thought the slider bar was what was going on real time and the number was the average since the last reset. I reset my fuel mileage display a few tanks ago (before a recent 200 mile trip) and it would read real time for a while and then settle down to an average. It was stuck on 11.9 for a tank or two then I went on a highway trip and it took it's good old time getting up to 13.4 mpg but the real time slider while on the highway was around 20 for most of the trip.

I had a few other cars and they are like this also. What would the benefit be to reading an average of 100 miles? That doesn't make sense to me.
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  #19  
Old 05-09-2011, 10:21 AM
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Re: Recent MPGs on a Weekend Trip

Ok so what you are saying is on the highway your "avg" number increased from 11.9 to 13.4. This would indicate that your evic readout works differently than mine. When I'm on the highway my evic "avg" number decreases to show that I'm using les fuel to drive a 100 km therefore getting better gas milage.
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  #20  
Old 05-09-2011, 11:29 AM
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Re: Recent MPGs on a Weekend Trip

20 mpg interstate drive north into the wind on Friday and 22.8 southbound with a slight tail wind Sunday.
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  #21  
Old 05-20-2011, 12:21 PM
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Re: Recent MPGs on a Weekend Trip

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Originally Posted by LiquidOxygen View Post
Ok so what you are saying is on the highway your "avg" number increased from 11.9 to 13.4. This would indicate that your evic readout works differently than mine. When I'm on the highway my evic "avg" number decreases to show that I'm using les fuel to drive a 100 km therefore getting better gas milage.
Remember your evic is reading Lt per km say 9L/100km is better than 11L/100km
the US one is reading Miles per gallon 13.4mpg is better than 11.9mpg

They are like opposites one is distance per volume (mpg) the other is volume used per distance (L/Hkm)

Hope this clears things up.

Dont know why metric could not be km/Lt
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  #22  
Old 05-20-2011, 12:36 PM
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Re: Recent MPGs on a Weekend Trip

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Originally Posted by LiquidOxygen View Post
Ok so what you are saying is on the highway your "avg" number increased from 11.9 to 13.4. This would indicate that your evic readout works differently than mine. When I'm on the highway my EVIC "avg" number decreases to show that I'm using less fuel to drive a 100 km therefore getting better gas mileage.
I think there is confusion here....

The EVIC is a simple calculator based on your inputs. Those inputs being fuel-in and miles driven. And, it all depends on when you reset your avg and your miles driven. The math works out the same.

When you refill next time, rest the trip meter and also reset your fuel economy. Keep the receipt from your purchase and write the starting miles. Next time you re-fill, check your old receipt aginst the current mileage. It should be the same as what your EVIC reads, if you reset it and left it alone that is.

Yes, the bar along the bottom is your current. That's why when you coast down a hill at 50-mph it jumps to 45-mpg. If you were able to maintain that coasting you would achieve 45-mpg, obviously not realistic. When you floor it, the bar drops down to below 10. Also, There is a little arrow above the bar at your most recent average, by most recent I mean since your last reset.

Simple Example
Lets say you start your work week Monday with a full tank (25.4-gal) and drive 400-miles before the LOW FUEL indicator comes on Friday afternoon. When you go to fill up you put in 23-gal, resulting in a full 25.4 gal tank. This means over the last week, you went 400-miles on 23-gallons of gas, you just averaged 17.4mpg.

Then lets say on Saturday morning you head out on a trip, 500-miles round trip. You are able to travel there and back on a single tank. The low fuel indicator comes on a few miles from home. When you fill up on Sunday evening you pump in 24-gal. For this weekend trip, which was mostly highway, no stop-and-go, you averaged 20.8-mpg (24-gal, 500-miles).

Not trying to undermine anyone's intelligence but the statement about your EVIC working different from other EVICs doesn't make sense. Hope this helps.

BTW, we took the wife's R350 this time, had 5-people, so nothing to compare to.

FWIW, I routinely average 16.2-mpg during my commute and daily "around-the-town" driving, commute is 13-miles one-way which takes roughly 45-min.
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  #23  
Old 05-22-2011, 01:52 PM
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I got 23.2 for the last 100 or so miles coming home from a trip today. Of course a large portion of that was thanks to Alabama DOT having reduced the speed limit to 55 on I-20 for no damn reason. Oh and lets not forget the nazi police radar gangs (saw 3 of them). Side note: adaptive cruise FTW...I just set it and forgot about it, so we didn't get pulled over!


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