Sh!ts Crazy right now and $2.99/Gallon E85 in California is looking pretty good

[DiehardTory]

It's your Jeep; as the ole saying "run what you brung" Here is the owners manual:
DO NOT use E-85, gasoline containing methanol, or
gasoline containing more than 15% ethanol (E-15).
Use of these blends may result in starting and drivability
problems, damage critical fuel system components,
cause emissions to exceed the applicable
standard, and/or cause the Malfunction Indicator
Light to illuminate. Please observe pump labels as
they should clearly communicate if a fuel contains
greater than 15% ethanol (E-15).
Problems that result from using gasoline containing
more than 15% ethanol (E-15) or gasoline containing
methanol are not the responsibility of the manufacturer
and may void the New Vehicle Limited Warranty.
DO NOT USE E-85 IN NON-FLEX
FUEL VEHICLES
Non-Flex Fuel Vehicles (FFV) are compatible with gasoline
containing up to 15% ethanol (E-15). Use of gasoline
with higher ethanol content may void the New
Vehicle Limited Warranty.
If a Non-FFV vehicle is inadvertently fueled with
E-85 fuel, the engine will have some or all of these
symptoms:
• Operate in a lean mode.
• OBD II Malfunction Indicator Light on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component corrosion

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[MeanGreen]

It's your Jeep; as the ole saying "run what you brung" Here is the owners manual:
DO NOT use E-85, gasoline containing methanol, or
gasoline containing more than 15% ethanol (E-15).
Use of these blends may result in starting and drivability
problems, damage critical fuel system components,
cause emissions to exceed the applicable
standard, and/or cause the Malfunction Indicator
Light to illuminate. Please observe pump labels as
they should clearly communicate if a fuel contains
greater than 15% ethanol (E-15).
Problems that result from using gasoline containing
more than 15% ethanol (E-15) or gasoline containing
methanol are not the responsibility of the manufacturer
and may void the New Vehicle Limited Warranty.
DO NOT USE E-85 IN NON-FLEX
FUEL VEHICLES
Non-Flex Fuel Vehicles (FFV) are compatible with gasoline
containing up to 15% ethanol (E-15). Use of gasoline
with higher ethanol content may void the New
Vehicle Limited Warranty.
If a Non-FFV vehicle is inadvertently fueled with
E-85 fuel, the engine will have some or all of these
symptoms:
• Operate in a lean mode.
• OBD II Malfunction Indicator Light on.
• Poor engine performance.
• Poor cold start and cold drivability.
• Increased risk for fuel system component corrosion

Correct. In order to run E85 you’ll have to be tuned for it. Then you’ll have no issues. Without a tune you’ll destroy your engine. Ethanol is a dirty word for some reason in certain car communities. E85 is completely safe once tuned for it. All modern vehicle’s fuel systems are ethanol safe because of the E10 and E15 fuels. You make more power and it will be noticeable. ONLY negative to E85 is that you’ll fill up more frequently.

 

[Mud Pie]

Yep.I remember.Also odd even days to fill up.Good times.

Yep. I lived in a really small village on Long Island; Brightwaters. One square mile total. You knew everyone AND what they drove. It was not uncommon to see a car pull up on the "odd" day with the license plate from another car; switched plates to get gas. The whole odd/even ordeal was easily defeated. Oh, there were threats of "illegal", but I don't think it was enforced.

Many attempts of bribes because they needed gas on an "off" day. My boss (most likely lying) said there was some government types doing sting operations to see if you bypassed the rules. I never did.

 

[bmpcamry09]

Guys, don't even try E85 unless your tuned for it. Period. No online kit is going to change that.

I am developing E85 tuning for these including GPEC5 this summer and have tuned a dozen or so of these JTs in the past 2 months.

The factory software has the ability to turn on E85 tuning very easily, it just has to be set up correctly. There is no alcohol content sensor, but it is inferred by fuel trims and it takes some driving to adjust. But from the factory, this strategy is turned off. Livernois did this for the GPEC2A guys. It is literally a couple of switches then a series of datalog runs to dial in the timing. Very easy compared to other platforms like Ford.

That said, if you want an actual custom tune experience with everything set up how you want it with multiple datalogs and revisions, I am one of the only people tuning the gasser JT. Livernois isn't offering much of a custom experience and they have far more time and money into other platforms. I am a small enough operation that you'll get a much better one on one tuning experience.

I'll be sure to let everyone know when the E85 is good to go. It is completely safe if your tuned for it and it's not going to "eat away" at your fuel system unless your Jeep is parked for a couple years. It's not 1990 anymore......manufactures consider alcohol content in fuel for their fuel lines and materials by default. The only limitations with E85 for most vehicles is tuning and in some circumstances the fuel pump being able to supply the amount of fuel needed as it does take a decent amount more fuel for the combustion process. But E85 burns much cooler and timing and cam advance can greatly be increased with it.

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