87 vs 93 Octane

[Samson16]

Nearly identical fuel mileage with more power under load was your result regardless.

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[JExpedition07]

I am a bit taken back at OP’s remarks, I am a girl. Me in the pic btw:

 

[Samson16]

I am a bit taken back at OP’s remarks, I am a girl. Me in the pic btw:

Buffalo never looked so good. Way to go kid!

 

[KingDavid]

Well fellas, or gals (some of you sure do act like it), this kept me entertained and gave me a good read along with some knowledge. 7 pages I came back to after a few comments, and I don't think anyone answered my question. I didn't see any improvements over 87 after 3 full tanks, and I've actually done this before when I got the truck with similar results. Did anyone else not really see a difference? It might be that I have to try another brand of gas. 93 is $.80 more and it looks like it's a waste for my specific truck which doesn't make sense. I will say, I raced my friends '16 Cummins dually deleted with a light tune and got him while on 93 so maybe it did something. I'll update whenever I have further findings. I'm thinking it's the gas, or I have to run more tanks to have a fairer comparison.

If you're trying to see if there's a performance increase, dyno your truck on 87, then 93, then e85. You'll have your answer after that. It becomes more apparent if you ever choose to be tuned.

 

[Samson16]

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More than twice the views? That does it. I'm trading in my PB for 5.0 like the cool people drive...

 

[Snakebitten]

Octane is the new oil thread these days

 

[UGADawg96]

Octane is the new oil thread these days

 

[Snakebitten]

I'm just saying.

By the way, I enjoy both immensely.
The passion our species can have for such things is delightful to witness.

 

[bgalakazam]

Not really passion, you have engineer minimum and recommended. People cheaping out on gas, but spending 10s of thousands of dollars on a vehicle is the entertaining part. Even when I drove a beater $1500 Mercedes, I put premium, because that is what the engine specifications were.

 

[Gros Ventre]

I'm just saying.

By the way, I enjoy both immensely.
The passion our species can have for such things is delightful to witness.

Yepper... Octane does not bring higher power output in and of itself. It's only if the engine is designed to use a higher rated fuel that more power can be produced. Second the incorporation of GDI alters the thermodynamics of the engine. I haven't quite figured out just how much... Somehow these facts are submerged in the dicsussion.

 

[Gros Ventre]

Not really passion, you have engineer minimum and recommended. People cheaping out on gas, but spending 10s of thousands of dollars on a vehicle is the entertaining part. Even when I drove a beater $1500 Mercedes, I put premium, because that is what the engine specifications were.

...And the Powerboost specifcation is 87 with 91 if towing heavy...

 

[Samson16]

...And the Powerboost specifcation is 87 with 91 if towing heavy...

Direct from the owner's manual:

"For best overall vehicle and engine performance, premium fuel with an octane rating of 91 or higher is recommended. "

91 or higher for best overall performance.

 

[Graygoose2021]

Picked up some 87 on the way home...had to get some work done

 

[Samson16]

I'm doing my part to keep this thread alive so I can keep "accidently" looking back at J's pic...

 

[nrmedic]

Octane is the new oil thread these days

Thoughts on the cetane rating of 5w40 or 15w40 in a run-a-away diesel?

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