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Regular vs premium anyone else notice huge difference?

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VAMike

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anyone that knows anything about engines knows a turbocharged hi-performance engine will run better and cleaner with premium gas. It's a fact.
That's not a fact, that's a vague and non-measurable claim. If you claim that higher octane gas will give you more hp under sustained boost then sure--but that's only relevant if your driving includes sustained boost.
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RedlandRanger

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anyone that knows anything about engines knows a turbocharged hi-performance engine will run better and cleaner with premium gas. It's a fact. Me and many others out there have proven this on dynos many, many times over. Here is a [particular test with the Ranger. https://www.tfltruck.com/2019/01/20...power-numbers-on-93-octane-fuel-dyno-results/

That said, 87 isn't gonna hurt anything and may not be noticeable from the seat.
I'm curious how you define "cleaner"? Less emissions? Less blowby? If so I've never heard that premium will affect either of those items. Better performance? Sure.
 

Sarge104

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Question for those that have access, I put my scan tool on and cycled through to see the retard (somewhere around -14° at idle). Obviously this will change during driving but probably a good indicator if your fuel mix is causing issues. Do we have information about timing differences with 87, 91, higher octane fuels?

Personally I just fill up with premium before I drive to the track, considering I'm not doing it professionally I doubt dumping in racing fuel will help me. The truck is very consistent, the driver is not... ;)
 
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MTB-BRUH

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"I’m pretty surprised so many run 87"

because not everyone is performance driven.
Ford has designed the engine in a way that meets all the needs.
Some like to waste money, some dont.

Bottom line, most comments in here are not fact based (the internet is full of conflicting evidence) and the arguments continue. Most of us, myself included arent scientists or engine designers. we dont know jack shit, but we have our opinions, some of which are pretty strong.

When someone posts a controlled environment comparison on a dyno with 87 and 91 and Ford certifies the results, then I might be more apt to believe the findings. (companies that do tunes, are selling a product, who really believes salesman???) Until then, I dont think what steve or bob say has any factual evidence to prove one way or another.
Until then, we can all cherry pick the internet articles that most suit of view and offer our completely uncontrolled and varied opinions on whether one fuel offers marginal or oh my f*cking god this is so much better.
Cool your jets, it’s called a “Discussion Forum” for a reason, to discuss. Obviously most of us aren’t experts. I enjoy reading all differing opinions though on why or why not
 

outdoorphotog

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Back to the main topic here. I hope people dont get stirred up by this statement but the dealer filled my vehicle with 87 last week when i bought it. Today i filled with 91 octane, and it is much smoother/quicker response off the line. I haven't noticed any other differences with 91.
 


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Back to the main topic here. I hope people dont get stirred up by this statement but the dealer filled my vehicle with 87 last week when i bought it. Today i filled with 91 octane, and it is much smoother/quicker response off the line. I haven't noticed any other differences with 91.
No one should be stirred up by what you perceive as an improvement.

I only ran a few tanks of premium and after burning through about a quarter tank and a few good pulls it felt more responsive, maybe like adding a cold air intake to a V8. It's not massive but it's there.
 
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Indy650

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I'm curious how you define "cleaner"? Less emissions? Less blowby? If so I've never heard that premium will affect either of those items. Better performance? Sure.
Premium gas often has additives to help prevent carbon build up. Also, because the Ranger engine is forced induction higher octane fuel burns slower and more stable which these type of engines like. I really don't care what other's do if they don't want to run premium then don't but me personally, I'm gonna treat my engine as good as I possibly can. Seeing it is possible to get 87 that is a bit lower than rated from the store and that gas loses octane as it sits I'm not taking the chance that when I go to pass someone my engine starts to detonate. Maybe as an engine builder and mechanic I'm just more sensitive with my stuff than most people.
 

Indy650

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Question for those that have access, I put my scan tool on and cycled through to see the retard (somewhere around -14° at idle). Obviously this will change during driving but probably a good indicator if your fuel mix is causing issues. Do we have information about timing differences with 87, 91, higher octane fuels?

Personally I just fill up with premium before I drive to the track, considering I'm not doing it professionally I doubt dumping in racing fuel will help me. The truck is very consistent, the driver is not... ;)
With the stock ECU timing will only change with different octanes if the engine starts to detonate. Slight detonation isn't noticeable by the driver but the sensor catches it and retards the timing. These newer ECU's might even cut down throttle position in these instances. That's what's nice about tuners is that if you know you are going to run high octane fuel you can surpass the stock limits set for lower octane gas. As for race fuel it is only for really high compression engines and/or high boost in forced induction engines. The higher the octane the slower fuel burns but it's more stable and race engines need a stable cooler burning fuel to survive the timing and compression that they run.Those people that tell you how they dumped 110 octane in their truck and ran a few tenths faster are full of crap.
 

Dokkenmire

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Do you ever pass anyone? What is it that makes you so miserable anyway? All over this site I see you always arguing.
Click on his profile pic and smash the ignore button then breath a sigh of relief and go back to enjoying the forums.
 

Doc

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Arrogance will get you nowhere..seems like you are taking your personal problems and blaming it on the world...
Merry Christmas
 

Indy650

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"Those people that tell you how they dumped 110 octane in their truck and ran a few tenths faster are full of crap"


if this statement is true, from the expert, then we can deduce the same for 93, or 91.
So whats this argument about again?
This post right here shows how damn little you know about engines. I'm not even gonna explain it to you. And no I didn't block you but maybe I should have you go around this whole site acting like a jerk and you have even posted you like the drama that's why you come here. Are you narcissistic a little?
 

Doc

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This post right here shows how damn little you know about engines. I'm not even gonna explain it to you. And no I didn't block you but maybe I should have you go around this whole site acting like a jerk and you have even posted you like the drama that's why you come here. Are you narcissistic a little?
Yes turmoil brings acknowledgment to him..
Regards
 
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