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  #25  
Old 02-22-2011, 11:23 AM
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Re: Hemi Gas Mileage?

I can speak to the difference with 10% ethanol on my XJ. Moved from Boston to Raleigh, NC. Similar daily drive, and similar weather back in the fall and I saw my XJ go from about 13 to 15-16. If I was still up north burning 10% ethanol, I'd be a little more worried about the gas mileage on the Hemi that's coming in my WK2.
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  #26  
Old 02-22-2011, 11:38 AM
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Re: Hemi Gas Mileage?

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Originally Posted by JTS97Z28 View Post
Oh ok well I guess I can only speak for the Chicago area then as its been here for as long as I can remember. And like I said my cars all get amazing fuel economy compared to the stickers ratings. So IMO the effects of 10% ethanol in our fuels is nothing to really even think about. I mean its not as if I have a choice in the matter anyway, atleast here.

James
You are in the minority. 10% Ethanol yields @ 33%-34% LESS gas milage compared with straight gas. When NY State made Ethanol 10% mandatory our 2008 Hemi went from 18 MPG combined to 15 MPG. Lot's of data out there to show that corn ethanol is produced at a 1:1 energy cost with gasoline used to produce and yields more expensive product with lower MPG.
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Old 02-22-2011, 11:39 AM
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Re: Hemi Gas Mileage?

I'm getting about 15-16 on avg here in Chicago.
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  #28  
Old 02-22-2011, 11:53 AM
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Re: Hemi Gas Mileage?

Just puttering around the suburbs with a lot of stop&go the worst I have seen is 10mpg which included extensive winter blizzard driving in 4Low the night of the blizzard helping family and friends. In normal winter city/suburban driving I've seen 13mpg on one tank and then 16mpg on the next. On the highway, it is extraordinary for a 5000lb 4x4: 23mpg @ 60-65mph flat/gentle hills. Generally I can plan a trip with stops based on consistently getting 20mpg unless I get aggressive passing trucks or "obliviots" on the phone.
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  #29  
Old 02-22-2011, 12:23 PM
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Re: Hemi Gas Mileage?

Not bad mileage overall, I use to get about 11-13 city and 15-16 highway in my SRT8, I only get about 14-15 city in my lifted FJ with a V6.
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  #30  
Old 02-22-2011, 12:36 PM
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Re: Hemi Gas Mileage?

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Originally Posted by KarlG View Post
You are in the minority. 10% Ethanol yields @ 33%-34% LESS gas milage compared with straight gas. When NY State made Ethanol 10% mandatory our 2008 Hemi went from 18 MPG combined to 15 MPG. Lot's of data out there to show that corn ethanol is produced at a 1:1 energy cost with gasoline used to produce and yields more expensive product with lower MPG.
Ethanol is crap, even Al Gore now admits that the whole ethanol push was a huge mistake.
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  #31  
Old 02-22-2011, 12:52 PM
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Re: Hemi Gas Mileage?

Well im not going to argue that ethanol is crap, or that your guys hard facts and numbers arent true, but man...if ethanol really makes that big of a difference I guess my 505hp Z06 can get mid 30's on ethanol free gas ;-)
I took this pic after filling up and driving 65miles at around 60mph. Come on ethanol cant be hurtin thatttt bad. The window sticker for this car says 25mpg hwy. Im not gonna worry too much about ethanol :-)

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  #32  
Old 02-22-2011, 12:53 PM
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Re: Hemi Gas Mileage?

You wanna V8? You pay for it and live with it otherwise get something with an I4 if you're really concerned about gas pricing. You're looking at the wrong vehicle.

The MPG numbers you see on the Monroney stickers are not hard and fast but an "average". Read the fine print and you'll see a range in there. Those numbers don't account for the loss in MPG because of Ethanol use in gas. So you wind up consuming more "gas" to go the distance but feel better about burning less of a hole in the ozone layer. Wait until 15% or more is shoved down our thoats. Remember, some states charge more than .50 per $1 in tax on your gasoline.

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Look at all the jobs lost when you had typists banging this out.
Look at the extra options we take for granted now.
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  #33  
Old 02-22-2011, 02:26 PM
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Re: Hemi Gas Mileage?

Ethanol reduces fuel economy, there is no mystery, it simply requires more gas to do the same work! Less energy, period.

You guys putting ethanol in and claiming better gas mileage have a bad test that you are using to calculate or your numbers are messed up, it just is NOT possible. There is no question about it!

E85 will reduce your gasemileage by 26%-34%. This range is because different manufacturer will adjust the tune for the E85, depending on how they do this depends on the results.

E10 will typically reduce the mpg by around 2%

Back on topic

This past winter in the crappy weather I was getting around 11.5mpg. Since the snow has melted and it has been a little warmer I have been seeing 13.5mpg with the winter blend fuel. This is all in town driving.

On the HWY I have got 19mpg doing 80mph with the cruise set going up and down slight hills. Again, this was winter grade fuel.

I only run 89 octane (since 3000 miles since I didn't know that it required this until then, oops).
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  #34  
Old 02-22-2011, 03:20 PM
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Re: Hemi Gas Mileage?

Ethanol is a negative net energy source; it takes more energy to make ethanol than the energy you get from the ethanol. That is why ethanol is indeed idiotic as a direct substitute for oil as fuel. Not only that, but if we use ALL of our farmland for crops to use in producing ethanol instead of food, we come nowhere close to filling but a fraction of our energy needs and get to starve ourselves in the process.
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  #35  
Old 02-23-2011, 09:38 AM
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Re: Hemi Gas Mileage?

Right ~21 mpg on a 500 mile trip yesterday, that included 45mins - 1hr of stop and go traffic in NYC before the GW bridge
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  #36  
Old 02-23-2011, 10:13 AM
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Re: Hemi Gas Mileage?

On a 150 mile trip with a 20MPH head wind I still got 19 MPG. I would say that is going to bad as it gets for those type of conditions. Living in Iowa the winds to get pretty high so that is always a factor with gas mileage. I use 89 with 10%. I haven't seen a gas station in Iowa that sells 89 w/o ethanol so I have no comparison there. In the city I get 13-15ish depending how cold it is and if i want to drive it hard.
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