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Discussion Starter #1
was told years ago if you mix 89/93 octane 50/50 you get more
than 91 octane. what about 87/93? havent done it. just
interested in an answer. now quit laughing. thanks for any
input.--irv
 

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Since no experts showed up, I'll assume you'll take non-expert replies at this time, so here I go. :ltr:
was told years ago if you mix 89/93 octane 50/50 you get more than 91 octane.
I personally don't see how you would get more than 91, unless the mix was not 50/50.
what about 87/93? havent done it. just interested in an answer. now quit laughing. thanks for any
input.--irv
There are very simple calculators for fuel octane everywhere. You can get any octane you want, as long as it's between the two octanes you are mixing. You can use one of these calculators:
Good luck with the alchemy experiment, and if you find a recepie for making gold, let us all know. ;)
 

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was told years ago if you mix 89/93 octane 50/50 you get more
than 91 octane. what about 87/93? havent done it. just
interested in an answer. now quit laughing. thanks for any
input.--irv
I wouldn't say I'm an expert, but you will get about a 91 octane mixing those two. Some stations have (or have had) only two tanks and the pump will mix it (or before the pump) for the mid-grade. And some places will mix tankers to do the same thing so they only need to pay for two delivery trucks to bring them fuel. Source: sister runs a gas station and asked her.

I'm assuming your goal is to get 91 Octane and avoid paying extra for the 93? Just a thought/suggestion if that's your goal. I understand a dollar is a dollar, but if there's a $.20 difference per gallon you're saving, that's less than $50 saved for every 10,000 miles. To me, that small amount would be enough to not deal with the inconvenience or possible issues of running too low of an octane.
 

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Mixing fuel would be a waist of time. Your not going to see more horse power your just going to see a waist of time.
 

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Discussion Starter #5
in illinois i can get 93 just about any where. in wis or iowa a
lot of times 91 octane is as high as you go. of course some of
those stations have no alcohol in there gas too. i try to to stay
with bp or shell. have always used whatever prem fuel they have.
--irv
 

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Any particular reason you're looking for this information?
 

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Discussion Starter #7
spent all my money on bike and accessories. thinking too much
in my spare time. brain overload? cheapa--? i dont know!
 

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spent all my money on bike and accessories. thinking too much
in my spare time. brain overload? cheapa--? i dont know!
Ha ha! Just figured I'd check and see if it was $$$ reasons (most common I've come across).
 
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