What Grade of Gas are you using?
- Thread starter armoredsaint
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carymccarr
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Not 105 but...
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Jeez, $7?!? Wow
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Pretty normal for Race fuel. A little high for 100 though. That is what I have seen for 105.
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Not 105 but...
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Where is that? If that pump had E85 it would be PERFECT! Mix my E85 and 100 to get to E70. I would be in Heaven!
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Lou Hamilton
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Well, he is from Buckeye Country and that is the official gas of Nascar. Maybe Eldora or Lexington, OH?
Wangle
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Ditto! Basic economics. I-80 Truckstop in IA, 87 $2.21, Premium 91 $3.10. I get about 7-9% better mileage with premium. Part of that is because the 91 is most often ethanol free. I will pay a 20% bump for premium, so unless I am towing I usually end up with 87. She still has PLENTY of power....
If ethanol is so great for performance, why isn't the Mustang set up to use more than 10%? The GT is an ACTUAL performance engine/vehicle. The Expedition is not. It is designed to tow and haul people. Apples and Oranges. I don't any benefits running anything higher than 91, in an engine that is only 10.5-1 compression. Lower compression is better for towing.
mquick5
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And yet again you come along and make an uneducated stuck in the mud comment that has no bearing on modern Turbo Charged direct injected Motors. Not to mention you are comparing a NA V8 to a Twin Turbo Charged V6. That being said, even the 5.0 can see excellent gains by adding Ethanol. It’s official limit from the factory is 15%.
Regardless of what YOU think it is designed for more power is still fun, and in many cases useful.
Ethanol has 2 things going for it that help to generate more power in Modern Engines, Higher Octane(E85 is 108) and Evaporative cooling. Both allow more timing, and in the case of a Turbo Charged Motor, more Boost. Both mean more power.
That is just 1 of MANY videos of the gains a Mustang can gain running on E85.
The issue with Ethanol is Energy content. The same amount of energy needs more fuel, so higher flow. MPG goes down, but E85 at least in my area is $1.00 cheaper than Premium. Cost per Mile is the same.
Because of that additional flow needed, most EB equipped Fords limitation to percentage of E they can run is dependent on the Fuel Pump. I have A LOT of experience with this because of my Edge. I am running E70 in it. I know of no other person successfully running that high on stock Cats and stock pump in that platform. That was the reference above. That was not an Expedition I ran that in.
The theoretical limitation for the 4th Gen Expedition according to my Tuner is probably around E50, before the stock pump would be maxed out.
There is an aftermarket solution out there that many people are using. All the videos you can find of the New Explorer ST running on E85 are running XDI Pumps. https://www.xtreme-di.com/product-category/xdi-di-fuel-system/xdi-high-pressure-fuel-pumps/
I have been known to drop a few gallons of E85 to mix with 20+ Gallons of 93 in our 2017 Expedition. You can feel the difference. I am also running a basic 93 tune on it.
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Premium in general has no less Ethanol than 87. Trust me, I have tested A LOT of Pumps.
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