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Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


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  #11  
Old 09-10-2010, 06:58 PM
flipster flipster is offline
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Quote:
Originally Posted by Bama Nation View Post
I also have the 2007 flex fuel.... Haven't run a tank of it yet. Any thoughts on using Flex Fuel.
I have run FlexFuel in my 2009... Not that impressed. The MPG and Horsepower are affected slightly. On 87 octane, i usually get about 16 MPG city, Ethonal Fuel I get about 14....

Just my casual observation, but I don't use flex and the 5 cents a gallon savings doesn't make much sense to me.
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  #12  
Old 09-10-2010, 08:16 PM
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rancherman rancherman is offline
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Quote:
Originally Posted by flipster View Post
I have run FlexFuel in my 2009... Not that impressed. The MPG and Horsepower are affected slightly. On 87 octane, i usually get about 16 MPG city, Ethonal Fuel I get about 14....

Just my casual observation, but I don't use flex and the 5 cents a gallon savings doesn't make much sense to me.
I will agree with you there on the savings!
location location location!!
Here in Nebraska, fuel with 10% alcohol aka gasohol....typically runs 5 cents a gallon less than 'regular'. It runs 89 octane.
now, the E85, which your 'flex fuel' vehicles are designed and tuned to run on... typically runs 65 cents a gallon less.
us alky 'burners' throw MPG out the window. You have to look at it as Miles per dollar. With the nickle difference.....it's a wash for economy. I think there is a slight performance advantage with the higher octane.

I don't own a flex fuel vehicle....(too new for me to own) LOL....but my neighbor has a Chev impala that does. He claims about 1-2 mpg less on the E85 versus the 10% alky. But He does claim higher than with regular unleaded.
With our 65 cent saving....and the 6-7% reduction in actual miles per gallon, It is still advantageous to burn the E85. Im not sure if the higher purchase price on the vehicle will ever 'pay' off in the long run....
As a corn grower..... I like the e85. it helps my bottom line, with higher prices for the grain.
I think in the long run though, growing corn to make fuel is a 'wash' in itself. way way too much fuel is spent to grow the corn, harvest, process, and then ship the alcohol all over the US. I know of other exciting plans being developed right now to 'grow our fuel'.
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  #13  
Old 09-11-2010, 11:31 AM
keithh2oskier keithh2oskier is offline
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I have been doing some research on the E85 because my new truck has the capability to run it. There is a local Shell station that sells it and the last time I checked it was around .30-.40 cents cheaper per gallon. My goal is to get a solid average on running just regular 87 octane gas and then see how the E85 stacks up and see how that effects the miles per dollar like rancherman said above. If its cheaper to run the e85 than I will. If not than I will stick with regular 87.

EDIT: mine also has badging with the yellow gas gap that says E85/gasoline

Last edited by keithh2oskier; 09-11-2010 at 02:18 PM. Reason: badging
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  #14  
Old 09-11-2010, 11:52 AM
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mine has badging on the rear and a yellow gas cap im averaging 11.8mpg with e85 and 14mpg on 10% and havent tried straight gas yet no mods though
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  #15  
Old 09-11-2010, 04:42 PM
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GPSHSLAX GPSHSLAX is offline
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Quote:
Originally Posted by flipster View Post
I have run FlexFuel in my 2009... Not that impressed. The MPG and Horsepower are affected slightly. On 87 octane, i usually get about 16 MPG city, Ethonal Fuel I get about 14....

Just my casual observation, but I don't use flex and the 5 cents a gallon savings doesn't make much sense to me.
Quote:
Originally Posted by Razorhawg View Post
mine has badging on the rear and a yellow gas cap im averaging 11.8mpg with e85 and 14mpg on 10% and havent tried straight gas yet no mods though
These are the first numbers I've seen anyone post on the difference in milage for a ram. That equates to 12-16% reduction in milage per gallon. What you really need then is a 15% or so decrease in cost per gallon to make it economically worth it.

The benefits of E-85 are higher octane, reduction of dependence on forein oil, cleaner burning than straight gas (or 10% blend). Negatives are lower miles to a tank, often not enough price difference to offset the decrease in milage, and it can be hard to find in many areas.

Also contrary to popular belife, because ethanol is water soluble and combustable, it draws water and other moisture out of your fuel system. It's like running some dry gas all the time.
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  #16  
Old 09-11-2010, 07:44 PM
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There was a post on e85performance.com that said if you where tuned properly you can get the same mpg as regular gas.
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  #17  
Old 09-13-2010, 02:35 AM
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Quote:
Originally Posted by 4pnt7 View Post
There was a post on e85performance.com that said if you where tuned properly you can get the same mpg as regular gas.
I read that too. I'm a huge proponent of E-85 for the most part (although I can't find it at any local stations) but I find this hard to belive. EtOH is a less dense energy source than regular gas ... period. They would have to work some real magic to make it preform at well as gasoline IMO. If the tune could make EtOH get that kind ofimprovment then there would really be no reasonable argument against it.

In this regard I'll belive it when I see it.
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  #18  
Old 09-14-2010, 10:36 AM
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Around here, I can usually get E85 for about 30-40 cents cheaper than 87. Before the mods I would run 14-17 on 87 and 8-11 on E85. It just doesn't make sense now, before when gas was 4.19 and E85 was only 2.25 it made sense but since gas came down in price and E85 went up it's not worth it.
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  #19  
Old 09-14-2010, 10:51 AM
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Hence the term, 'flex fuel'. Know your differences in performance in the various fuels, and costs. When it's more economical and available...use the E85.

My worries with the alky, is the poor storage some refueling stations have. Since it is VERY hydroscopic in nature..... Just how much water are you pumping in your truck. As more and more people use it, theoretically the fuel should be 'fresher' in the tanks. In the eary years, (3-4 ago) it was getting 'stale'. not enough turnover.
I think by now, on the main drags, it should be pretty safe.
Ideally, a storage tank should be 'sealed' from the atmoshere. And that type of storage is just another expensive cost for the station to pass on to me and you.
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