6.2L and ethanol free gas

[The Tank]

For 2011 Ford is accounting for the 10% to 15% ethanol content in gas and has changed the stoichometric air/fuel ratio from 14.7:1 to 14.0:1 to get the most out of the engine. Which means you can not ethanol free gas a 6.2L. I don't know if 2010s have this calibration but I would not E0 in a 2010 6.2L

 

[KaiserM715]

Interesting. Thanks for the heads up. How did you find this out?

 

[BigJ]

That really is interesting. Thanks Tank.

 

[Nacho]

Hmm.. I'd like to know this as well. Gas here has been transitioning to E10 and The 6.2 burns through that crazy fast. Its about 5-10cents cheaper than the midgrade, but I get about 30 more miles on one tank with 90 oct Midgrade. AAFES (read: communists) no longer sells Regular unleaded.

 

[The Tank]

A long reply from my phone sucks. When I get home to my computer I will answer all questions.

sent from ...... I don't know where I am.

 

[The Tank]

Interesting. Thanks for the heads up. How did you find this out?

My tuner has been making this change for years. In the packet of papers he sends to you prior to tuning your truck it ask what type of gas(brand) do you use in your truck. I told him I run Shell because its close to where I live and BP because the owners manual says too. He then told me that BP promised Ford that they would be the very last to ethanol in there gas hence the line in the owner manual so Ford wouldn't have to make programing changes. He also told me that the change was starting with the SHO and carrying on to all 2011 Fords.

Hmm.. I'd like to know this as well. Gas here has been transitioning to E10 and The 6.2 burns through that crazy fast. Its about 5-10cents cheaper than the midgrade, but I get about 30 more miles on one tank with 90 oct Midgrade. AAFES (read: communists) no longer sells Regular unleaded.

E10 and Regular unleaded are the same thing in the States. Its funny when I'm at the E85 pump they have a pump labeled E10 instead of regular and I can't tell you how many people in Non-FFVs I have seem back away from that pump because they don't know its the same stuff. Nacho you are a special case. Your truck was build for export to Germany but it sounds to me like you have the old calibration.

 

[SaintsFan]

Has anyone actually run non-ethonal gas in their 2011/2012 Raptor? Just wondering if there were any negative side effects.

 

[Vash]

I've only ever used non-ethanol 87 octane gas in my 2011 with about 6000 miles on it. Never had any problems. So, no idea how that works if you can't use non-ethanol gasoline. Not really a fan of ethanol so I avoid it if I can.

 

[Truck Wolf]

Has anyone actually run non-ethonal gas in their 2011/2012 Raptor? Just wondering if there were any negative side effects.

I run ethanol-free gas (92 octane) in my 2011. No issues whatsoever. Same gas mileage as with gas that has corn-based alcohol in it.

 

[DynoDynge]

Ethanol mixed gasoline runs (proportionately by volume) leaner than straight gas.
The air/fuel ratio, designated by your ECM, is only valid during steady state throttle settings (cruising) while in closed loop. When not being adjusted by the O2 sensors, during steady state conditions, your injectors are driven by a preset program. They are preset parameters that do not rely on 02 sensor input. A vehicle designed to run on straight gasoline will run dangerously lean during this time if it is running more than 10% ethanol. Once the O2 sensors take over, the ECM will try to reach the designated A/F ratio by increasing cycle time on the injectors. A/F ratios of up to 14.8:1 are safe, but the optimal power can be reached with a ratio of 12.9 to 13.2 to 1.
In other words, the problem is not with the A/F ratio setting, it is in how the ECM controls(or doesn't) the system during on/off throttle operation.

JMTC