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What gas are you using?

What Octane?


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    203

izzy

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Always Top Tier - Best Chevron - Costco if nearby.
87 Octane. What its designed to run on. Engine/computers don't know the difference.
Premium would be a waste of money.
>Engine/computers don't know the difference.

The ECU pulls less timing with 91. I can guarantee you the using the highest octane fuel you can find is safer for the T24A-FTS than running 87.

Aside from getting more power (less timing pulled) you are also giving the engine much more knock protection by increasing octane.

Base comp on the T24A-FTS is 11:1, which is high compression for NA, before you even add any boost... I wouldn't run a NA car with 11:1 comp on 87, nonetheless turbo lol.
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MT-Taco

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redlimitediforcemax

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92 Chevron only. When I ran 87, there would be a stumble around 36-48 mph when you lightly apply throttle. This was a stock truck from new and it always did that. Ever since i switched to 92, it has disappeared completely. IT took a few tanks of premium to notice the stumble was now gone. I do notice a nice power increase and smoother acceleration due to the higher octane and maybe 1-2 mpg increase.
 

Leucosia

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When I sold my s1000rr the k67 engine had 25k miles and it was smooth as butter. I had full confidence in that engine and would road tripped it up the pacific coast highway. Only ever used 91 chevron (or 91 shell). Swapped out my oil every 3k. (25k is a fair amount of mileage for a supersport, stock compression ratio is like 14:1.)

Going to do similar to this truck, 91 chevron + 5k oil changes. Might even feel saucy and throw in injector cleaner in the gas when i do an oil change.
 

ixo

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i use the stuff that comes out of the pump at chevron
 

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oxi

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87 Kwik Trip no issues...

22k miles and climbing
 

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I've been running 87 from Costco, after reading this thread, I will try 91. Just have 1,300 miles on the truck now.
 

Slappy

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mine runs very well on Costco premium
i never hear the engine knock when using any of the upper tier premium gasolines
I do not use any off brand/local discount gas sellers
it shitz & getz on Premium 🙂
I am a all gas no brakes kinda guy
 

Dirt

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As I said in Feb '25, following the book at 87 from top tier stations, now for over 46K from the Pacific coast into the Great Smokey mtns, N. MT to the TX Gulf Coast. No problems with that performance.
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