4xe and E85 ?

chrissiha said:

Hello,

I am French and waiting for my rubicon 4xe (some weeks again argggg)

In France SP98 and SP95 are more and more expensive.
E85 is cheap, and works well in a lot of car. Old wrangler pentastar can be prepared for E85.

Does somebody tried E85 in the 2.0 of his 4XE without modification of the programmation ?

Thanks for your advice.

Chris

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I use E85 or equivalent here in the States without any issue.

Agamemnon said:

I use E85 or equivalent here in the States without any issue.

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Ok, thank you very much for your answer.
Do you use 100% of E85 ? No problem in winter ? Does the consomation increase a lot ?
Thanks

chrissiha said:

Ok, thank you very much for your answer.
Do you use 100% of E85 ? No problem in winter ? Does the consomation increase a lot ?
Thanks

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I haven't really had it long enough to be able to answer either of those questions, unfortunately. I've driven mine on a longer trip only once in colder weather but had no data compare it to.

High compression engines (including ours) usually run way better on premium. Read the manual, it may void your warranty.

AnonCanadian said:

High compression engines (including ours) usually run way better on premium. Read the manual, it may void your warranty.

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Regular octane is recommended for the 4xe. One advantage over the other Wranglers with the 2.0T that require premium.

I'm not sure about e85. That normally requires synthetic rubber hoses in the entire fuel system. Of course, I've been out of the biz for 15 years so all hoses may be synthetic now for emissions reasons.

Your fuel pump and injectors cannot supply the amount of fuel needed by the engine for e85. As with many 4cyl, 2.0L engines it would need to be heavily modded and re-tuned to run e85.

Agamemnon said:

I use E85 or equivalent here in the States without any issue.

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85 octane or e85? E85 is 85% ethanol. You know, alcohol, not regular gasoline.

In France some guys propose a retuned to accept E85. Only new programmation, no mecanic modification.

But I have no return. Does somebody do it ?

chrissiha said:

In France some guys propose a retuned to accept E85. Only new programmation, no mecanic modification.

But I have no return. Does somebody do it ?

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I would be very hesitant about just a re-tune. Many manufacturers do not put the hardware on the little 2.0L to handle the amount of fuel the engine needs to run properly in e85. Research will have to be done on this if you want to do it. Now saying that, if the hardware is capable, you would be able too up the power in the 2.0L from 270hp to over 350+hp.

Lol, ad electric torque to that and the 4xe becomes a real sleeper. That would be 455 HP.

Here in the US e85 is priced to be a wash in cost per mpg.

Are there any markets where this 2.0L is running e85? Fuel pump and injectors may need upgrading and then we would have to be careful about fuel refresh intervals.

Hello chrissiha have you asked the dealer (concessionaire) ? (preferably in writing)

Please let us know the answer...

E85 is good

I'm beginning to think that certain export models may be required to run on E85. Some countries may have the requirement, but I'm pretty sure the US versions are normally not sold in the states to utilize e85 unmodified. It's not too far-fetched considering metal bumpers are not allowed in most of Europe. Check the window sticker or supplemental owners manual for clues if you are in France or Italy.

rumidon said:

E85 is good

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Do you use it in Italy on a 4xe ?

Hi everybody

I have not found information about E85 and our 4xe in France.

Does somebody have tested it ? Some news in other country ?

Thanks

Bonjour,
It is stated very clearly in the 4xe user's manual that e85 is not supported.

I would not risk it.

Cdt

Lars said:

Bonjour,
It is stated very clearly in the 4xe user's manual that e85 is not supported.

I would not risk it.

Cdt

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Good to know that the export versions are not set-up for e85. I was not able to find that info in the US. Running e85 in a non-converted vehicle will result in damage to the entire fuel system. Hoses will degrade and cause contaminants to foul injectors, clog filters and damage the fuel pump.

HungryHound said:

I was not able to find that info in the US.

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The US manual also says no E85 (well, technically it says no more than 15% ethanol, which rules out E85)

Mllcb42 said:

The US manual also says no E85 (well, technically it says no more than 15% ethanol, which rules out E85)

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Sorry, I meant that there was no mention of an option for e85 in the US so I figured it wouldn't be available for export, but I wasn't sure if some countries are now requiring it.