As am I, this has gone deep into testing and theory ( looking for something to hold on to to keep from getting overwhelmed )

 

Most of our info is proprietary, but a couple pictures shouldn't hurt to prove my point. I know for a FACT that these Ecoboost engine's have the ability to adjust for different octane levels. They do come from the factory tuned to run "safe" on 87 octane....BUT....the control parameters do allow adjustment to optimize for running conditions, if the octane level is increased past 87, it will compensate & adjust timing (fuel & cam) to reach optimal running conditions until it peaks out within its set limits (low or high) as set by Ford from the factory. I've never said you'd make whopping amounts of extra power, it's only about a gain of 11-13 flywheel HP, which translates to about 1-2 HP at the wheels. But this guys argument is all about him saying the engine controls have no ability to compensate for higher octane fuel.....he's wrong PERIOD & needs to stick to pushrods & carburetors. He still hasn't answered the question of why Ford says running 87 octane in their 4 cylinder Mustang will result in a power loss of about 25HP vs using premium fuel. Maybe it comes from the factory spec'd to run on 93....but wait....according to that guy the vehicle can't compensate that much for changes in octane.....what a moron. When it comes to towing with the Ecoboost, Ford says to use premium fuel because "yes" loading of the engine creates more heat...."yes" higher octane resist detonation better....BUT....according to this guy, the engine came spec'd to run safely on 87 from Ford & can't adjust for different octane levels. Maybe Ford engineers are idiots & can't figure out how to make the Ecoboost tow safely on 87 octane....OR maybe, just maybe the engine CAN compensate for octane levels....I'm tired of arguing with ignorant people "ignorant means lack of knowledge".

 

Oh, by the way....the only reason Ford came out with the Mach 1 is because of people who wanted a Cobra, but couldn't drive a stick shift (mostly women). Hence the Cobra engine mated to either an automatic or stick shift.

 

From my owners manual:

2.7L and 3.5L EcoBoost Engines
We recommend regular unleaded gasoline
with a pump (R+M)/2 octane rating of 87.
Some stations offer fuels posted as regular
with an octane rating below 87, particularly
in high altitude areas. We do not
recommend fuels with an octane rating
below 87.
To provide improved performance, we
recommend premium fuel for severe duty
usage, such as trailer tow

I could be reading this wrong, but the way I read it is that 87 is the recommended fuel to use. Under SEVERE duty, super unleaded will keep you from losing HP, not so much as gaining any.

 

Just some info these ecoboost engines do adjust and learn which fuel is used look at the new navigators they are rated 380 460 torque with a astreks beside this is the premium fuel rated numbers as my 15 expedition is rated 365 420 on regular guess what I called my ford guy guess what my expidition has same engine per ford catalog and same engine computer per ford catalog but there numbers are on 91 octane not 93 so it's pretty safe to say the f150 3.5 ecoboost running premium fuel is 380 hp and 460 torque, it like my 13 sho Taurus I traded in on the expo had a rating of 365 hp and 350 torque on premium fuel, as other said this technology is far beyond the Mach 1 which was tuned to run on premium fuel, from my understanding for can measure the burn time right at the plug figuring out what octane is in them, the new vehicles can run regular or premium and the tune is fully adaptive and adjust per what octane is used

 

Funny how a discussion turns into personal attacks. You got it I'm a moron and should stick to pushrods and carbs. And you got me again the Mach 1 was made for people who could not afford a Cobra and can't drive stick....women right lol. Funny at 24 I walked into the dealership and paid cash for my Mach 1 because I wanted a solid rear end and Azure blue and wanted the 5 spd not 6. Why get a Cobra considering at 21 I went to the dealership and paid cash for a 99 Cobra so I wanted to change it up a bit.

I guess your the moron who can't read. We are talking about F150 engines, not the Mustang Eco Boost. Since you work in such a fancy facility then why don't you show us some data logs showing the computer running differently on 93 vs 87 or your high tech dyno sheets showing a difference in power.

So let's see the proof that you should so easily be able to produce.

I guess civility goes out the window and people get all but hurt when someone's version of things does not agree with there's. Real big man throwing insults around on a keyboard huh. What a d!ck.

 

Plenty of proof I posted above about the expedition vs navigator, and all the controls and ecm are the same between both applications yet the navigator numbers are based on premium,

 

Same engine, same ECU, but I can almost guarantee they run different tunes from the factory. There has yet to be one single real world report proving the system WILL adapt and take advantage of the higher octane fuel.

Not trying yo be a ***** about it in any way, there is enough of that in here already, but has there been a single report of an Expedition owner switching to 93 for an extended period of time and picking up the 25 extra hp the Navi has? Or an F150 owner picking up power by upping the octane?

I'm going to hide under a rock cause I'm sure in a few a keyboard bad*** will be coming in to insult me again.

 

So you spent your daddy's money on a $30,000 Mach 1 at the age of 24 & before that on a Cobra at 21....that's great, at 21 I was jumping out of C130's at Ft. Benning Ga. I didn't have dads money to pay cash for a Mach 1 or Cobra at such a young age. We're talking about modern engine controls....PERIOD....the F150 Ecoboost & the 4 cylinder Ecoboost in the other vehicles. They use all the same control functions, I was pointing out the 4 cylinder Ecoboost to show you that FORD actually states a loss of power for lower octane fuel. The F150 Ecoboost uses all the same controls, but the power gain from using premium fuel is too minimal for them to even mention (like I stated earlier) unlike the little 4 cylinder where somebody would notice a loss of 25-30hp. But you keep saying the vehicle can't compensate for different octane fuels, FORD tells you this in the owners manual plainly on the 4 cylinder Ecoboost, not so plainly on the F150 Ecoboost. You're obviously one of those people that can't admit when they're wrong....it's ok, with age comes humility. Just FYI, I'm just as big when im not behind the keyboard 6'3 & 235 lbs to be exact....
You can't prove to some people anything, even if they hold it in their hand, see it with their own eyes or whatever.

 

I have a 15 Eco Mustang, the recommended fuel, specified by the original equipment manufacturer, the people who designed and built it is 87, period. This is in the owners manual:


Note: Use of any fuel other than










recommended fuel can cause powertrain


damage, impair the emission control system


or cause loss of vehicle performance. Any


damage to vehicle that is caused by use of


fuel not recommended will not be covered


under warranty.