Does the 2.7L Ecoboost require premium gas?

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KindaOrange

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regular per Ford's site (y)

gas.PNG


*edit: I re-read your post and if its more of an asking an opinion, I would stick with factor recommendation unless you go with an aftermarket tune that is for a specific fuel.
Reg-ler woooo! 🤘





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BecauseMotor

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This.

Question for those in the know about this kind of stuff... even if premium grade fuel is not required on the 2.7L engine, does the engine perform any better with higher grade fuel than it does with standard?
Only if the ECU is calibrated for it. No point in running it unless tuned for it.

Does anyone know if the Ford performance tune on the Ranger requires 93 octan? I’m hoping that tune is available around launch for the Bronco.
I really hope so. Easy way to make more power is upping the octane and having the ECU calibrated for it.
 

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Question for those in the know about this kind of stuff... even if premium grade fuel is not required on the 2.7L engine, does the engine perform any better with higher grade fuel than it does with standard?
I don't have an answer for you.
It would depend on the engine management.
If it has a detonation sensor, it could regulate boost pressure..... giving maximum boost before detonation. Therefore, better gas would result in higher boost.
My '88 Saab 900 did it that way, while my '79 turbo Regal just retarded the timing when it 'heard' detonation. The Saab system was lightyears ahead of the Buick, and that was 32 years ago.

I would expect a 2021 Ford to have a system which takes advantage of higher octane fuel, and maximizes engine performance when using it.
 

Longshot

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Here's a good overview of the 2.7L Eco... It mentions as well that there is engine management that controls the power output based on the octane rating, however it specifically mentions the 3.5l in this case... So you could assume the same is true for any of the Eco's, but that may or not be the case...?
https://www.blueovaltrucks.com/tech-articles/ford-2-7l-ecoboost-engine/
 

Jp215

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I’m not 100% but I do believe with exception of diesels and f350s-f750s that all new ford and Lincoln’s have cap less filler necks.
Speaking of fuel, do we think the tank will be capless? My 2009 F-150 is capless. Did they keep this?
 

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Here's a good overview of the 2.7L Eco... It mentions as well that there is engine management that controls the power output based on the octane rating, however it specifically mentions the 3.5l in this case... So you could assume the same is true for any of the Eco's, but that may or not be the case...?
https://www.blueovaltrucks.com/tech-articles/ford-2-7l-ecoboost-engine/
More interested in the cold air intake to boost it... On a side note, glad mine doesn't have the start/stop. I would bypass that as soon as I got home!
 

SpecOpsHippie

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It would surprise me if the premium didn’t make a difference in a modern engine (with late gen ECUs etc). The question I have for the SMEs out there is does it affect tour ECUs ability to learn your driving style? Does it interfere negatively at all with mapping?
 

SoccerDude

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Question for those in the know about this kind of stuff... even if premium grade fuel is not required on the 2.7L engine, does the engine perform any better with higher grade fuel than it does with standard?
According to Ford Edge Sport Forum (2.7L TT Engine) it does make a difference but it is unnoticeable. I cannot tell the difference personally but it is estimated to have up to a 15hp swing based on the fuel.
 

BroncoTPA

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The owners manual for my 2017 F150 recommends Top Tier fuel for the 2.7L. My understanding is that Top Tier fuel is certified for having a certain mix of detergents to maintain a cleaner engine.

Like others I do cycle premium fuel every few fill ups and notice a slight uptick in MPG.
 

ericmario

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i've been using premium (91 octane here in toronto) since day one for my Mustang Ecoboost 2.3. Premium gas has less contaminants so I tend to look at cleaner gas being better for the longevity of the car more so than for performance
 

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Question for those in the know about this kind of stuff... even if premium grade fuel is not required on the 2.7L engine, does the engine perform any better with higher grade fuel than it does with standard?
Yes, unquestionably.

https://cdn.dealereprocess.org/cdn/brochures/lincoln/2018-mkx.pdf

Go to the bottom of page 4 and look at that tiny text at the bottom of the page:

Horsepower and torque ratings achieved with 93-octane fuel.
Ford's spark management is very sophisticated and constantly monitors for the indicators of knock on a per-cylinder basis, then advances or retards timing on individual cylinders to maximize power production. Running a lower octane fuel results in earlier knock, so power will be pulled. You are 100% fine and 100% safe running 87 octane, but you will not be making as much peak power/torque.
 

Laminar

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i've been using premium (91 octane here in toronto) since day one for my Mustang Ecoboost 2.3. Premium gas has less contaminants so I tend to look at cleaner gas being better for the longevity of the car more so than for performance
How many contaminants do they allow in non-premium gas?
 

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