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  #1  
Old 12-12-2011, 05:26 PM
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new 3.6l pentastar

can this thing run E-85 ? or how to i check if i have the version that will run e-85?
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Old 12-12-2011, 05:33 PM
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Re: new 3.6l pentastar

yeah, it's a flex fuel engine.
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Old 12-12-2011, 05:51 PM
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Re: new 3.6l pentastar

yep... it is.
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Old 12-12-2011, 06:00 PM
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Re: new 3.6l pentastar

so every 3.6l in the 2011 and up can run e-85?

Any thoughts on running it and how the mileage changes from 87 to e-85

also what fuel seems to be cheaper
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Old 12-12-2011, 06:09 PM
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Re: new 3.6l pentastar

Flex fuel is cheaper but your fuel economy will drop.
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Old 12-12-2011, 06:15 PM
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Re: new 3.6l pentastar

Yea, dont bother with E85, the savings is minimal at best and the amt of miles you lose is more of a loss than the difference in cost per mile, its a wash, if not a loss..
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Old 12-12-2011, 07:08 PM
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Re: new 3.6l pentastar

You can expect to lose around 20% MPG with E-85.
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Old 12-12-2011, 10:06 PM
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Re: new 3.6l pentastar

Check your gas cap. If it says E-85, then you can use E-85. That goes for any car out there.

You will lose about 20% mpg. Given the cost of E-85 right now, you are probably working on a loss there. BUT, if you prefer to have your gas money going to a local farmer rather than to the Middle East, you might decide to do it just out of principle. Of course, if everyone does that, then it will throw our corn industry into a bit of chaos and food prices, etc., will rise. So, overall, probably not worth your time.
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Old 12-13-2011, 07:39 AM
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Re: new 3.6l pentastar

Food prices have already gone through the roof as a result of ethanol. No brainer to me. Better mileage with regular gas at less expense, only way to go. Don't know why anyone would go with E-85 since you get less bang for the buck.
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Old 12-13-2011, 09:44 AM
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Re: new 3.6l pentastar

I haven't done a comparison with the Jeep, but with my Tahoe, it had to be approx $.65 less to even consider going with E85 and even then it was close to a wash. Not worth it as the prices sit today.
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Old 12-13-2011, 10:06 AM
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Re: new 3.6l pentastar

Quote:
Originally Posted by ajs800 View Post
I haven't done a comparison with the Jeep, but with my Tahoe, it had to be approx $.65 less to even consider going with E85 and even then it was close to a wash. Not worth it as the prices sit today.
Maybe at the current gas prices at the time. You should be looking at percentages rather than fixed values.

If Ethanol gets you 20% less mileage than Gas, it should cost 20% less to break even. $0.65 may have been true at the time, but that would vary.
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Old 12-13-2011, 01:17 PM
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Re: new 3.6l pentastar

^^That is correct...it was more of a ballpark figure when quickly checking at that time. I did the numbers a few times and never really found it worth it.
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