Tremors and high octane fuel

[Tremorky]

Dave as you can see this is a hotly debated question, with a lot of emotion. Most of the responses seem to be minimal gain if any. The responses are more about performance. They are also somewhat regional. Remember gas availability, cost and grades vary throughout the country.

In my case, I do not have 93 available, only 91 without ethanol. I can get 87 E10 and 89 E15. I have run all three at one time or another. I don't keep a close track of my mileage and don't care, not why Ibought the truck. I did notice a slight, and a do mean slight, increase in mpg using 91. For the way I drive any performance gain was unnoticed. That and the 80 cent per gallon cost difference, in my area, was not justified. I am currently running the 89 E15 as it is 5-20 cents per gallon cheaper than the 87 E10 and Ford says I can run it. By the my 2019 XLT FX4 is unturned and my transmission shifts just fine at 32K miles.

Input is a good thing, but Your experience and choice can only be yours based on your location and what is important to you.

This is kinda of what I was trying to say but in English. My native language is Hillbilly. ?

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[Friday yet?]

This is kinda of what I was trying to say but in English. My native language is Hillbilly. ?

I speak fluent redneck, per't near fluent hillbilly and somewhat passable English. I understand English better than I speak it.

Sadly my Warden of many many years would shake her head and agree with me. Even after all this time together I still occasionally impress her with some of my vocabulary. Well, ok "impress" is my description of the incidents. Shocked, appalled and sometimes stunned would most likely be her word of choice.

 

[JasonTremor]

It takes a few tanks of premium fuel before the computer fully adjusts to the fuel. "Octane adjust ratio" is the technical value that is learned over time in the ECM.

The biggest performance benefit to using premium fuel is observed in the hotter summer months. No performance difference noticable to me in the cooler months. From a mpg perspective, I observed at best about 1 mpg increase, but there are so many daily driving variables at play I'm not sure I could accurately prove an increase.

 

[subquark]

I only run 93 in Soupie but if it's supposed to help with MPG, I'd hate to see if I ran 87.

My overall MPG is right on 18. I do lots of local driving and only occasionally get on it.

I don't expect better performance or better mpg, I do expect more stable gas (premium lasts longer than standard as far as sitting around in a tank).

But ... I'm also conflicted about the performance bit because my wife's Mazda will output 227 horsepower/310 lb-feet torque on 87 octane and 256 horsepower/320 lb-feet torque on 93 octane.

I've looked for dyno readings specific to the Ranger illustrating any octane difference but never found any that were conclusive.

go faster!

 

[WhyNot21]

I only run 93 in Soupie but if it's supposed to help with MPG, I'd hate to see if I ran 87.

In reality, you'll only get better fuel economy with premium if it has a lower ethanol content. There have been way too many studies on this to even begin to doubt it. But the internet is going to be the internet.

 

[DaveT]

Dave as you can see this is a hotly debated question, with a lot of emotion. Most of the responses seem to be minimal gain if any. The responses are more about performance. They are also somewhat regional. Remember gas availability, cost and grades vary throughout the country.

In my case, I do not have 93 available, only 91 without ethanol. I can get 87 E10 and 89 E15. I have run all three at one time or another. I don't keep a close track of my mileage and don't care, not why Ibought the truck. I did notice a slight, and a do mean slight, increase in mpg using 91. For the way I drive any performance gain was unnoticed. That and the 80 cent per gallon cost difference, in my area, was not justified. I am currently running the 89 E15 as it is 5-20 cents per gallon cheaper than the 87 E10 and Ford says I can run it. By the my 2019 XLT FX4 is unturned and my transmission shifts just fine at 32K miles.

Input is a good thing, but Your experience and choice can only be yours based on your location and what is important to you.

Thanks! Your experience is like mine, little gain in mpg, little performance gain, and major price gain!

 

[DaveT]

I have no idea what affects MPG in this truck.

Ran premium only for 2 months - no change in MPG.

Drove in Sport mode for just under a month- no change in MPG.

I just drive it. I’ve only broke 20+ MPG once.

Thanks, exactly my experience too.

 

[Jhbryaniv]

OK, OK, OK that was a bit harsh.

Toyota is running a sale on camry's?

 

[5thranger]

You will see a + mpg difference if using gas without alcohol. 93 and alcohol free gives best mpg on mine. However 87 alcohol free might do as well, just never tried it.

 

[5thranger]

I speak fluent redneck, per't near fluent hillbilly and somewhat passable English. I understand English better than I speak it.

Sadly my Warden of many many years would shake her head and agree with me. Even after all this time together I still occasionally impress her with some of my vocabulary. Well, ok "impress" is my description of the incidents. Shocked, appalled and sometimes stunned would most likely be her word of choice.

You uns is funer ya all

 

[Tremorky]

I speak fluent redneck, per't near fluent hillbilly and somewhat passable English. I understand English better than I speak it.

Sadly my Warden of many many years would shake her head and agree with me. Even after all this time together I still occasionally impress her with some of my vocabulary. Well, ok "impress" is my description of the incidents. Shocked, appalled and sometimes stunned would most likely be her word of choice.

It’s almost like we live in neighboring states! ?.

You uns is funer ya all

i didn’t know ya all was more than one sy…syl…. sillalabalulll.

 

[5thranger]

It’s almost like we live in neighboring states! ?.

i didn’t know ya all was more than one sy…syl…. sillalabalulll.

We is nabors Ka an Ke hellfire!

 

[5thranger]

We is nabors Ka an Ke hellfire!

Cornhole is not a board game with bags you toss in these parts

 

[mtbikernate]

I've used high octane fuel and only noticed sharper starting, no mpg improvement. It would have to be a drastic mpg improvement to warrant the increased cost of the fuel. If anyone who's getting better mpg has done the math on the increased cost of the fuel, I'd like to hear your $ savings.
I have, however, gotten slightly better performance and mpg with a good fuel injector cleaner and upper cylinder lube. I've never done the math on it as I'd buy and use both items regardless.

Any difference in fuel economy I've noticed from using premium has been at most 1mpg or so, which is not enough for any cost savings. that said, I do notice a difference when towing, so I definitely use premium then.

It takes a few tanks of premium fuel before the computer fully adjusts to the fuel. "Octane adjust ratio" is the technical value that is learned over time in the ECM.

The biggest performance benefit to using premium fuel is observed in the hotter summer months. No performance difference noticable to me in the cooler months. From a mpg perspective, I observed at best about 1 mpg increase, but there are so many daily driving variables at play I'm not sure I could accurately prove an increase.

similar experience for me. I'll occasionally run a couple tanks of premium through to sorta flush out the 87, even when I'm not towing. I notice the truck is a little smoother when I do that, so I think the benefits have less to do with fuel economy.

You will see a + mpg difference if using gas without alcohol. 93 and alcohol free gives best mpg on mine. However 87 alcohol free might do as well, just never tried it.

I have access to 91 ethanol free and it might be as good or better on fuel economy as the usual 93 I can get. it's hard to say. I think gas freshness and overall fuel quality are things that play a role, too. I've had the occasional tank with surprisingly low economy before and I think there are other factors at play for those.

 

[9zero1790]

mines not a tremor truck but has many of the same things like being lifted, more aggressive tires etc. my mileage did vary a bit with fuel grade but honestly i dont think it is the octane rating so much as it was the brand / place = quality of fuel i got. the top shelf gas seemed to be better performance. cheapo stations like race trac seemed to burn up quick and lack some zip. i never did any real testing so it could all be my mind being silly.

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