MuffinMcFluffin
Senior Member
- First Name
- Brandon
- Joined
- Jan 15, 2018
- Threads
- 33
- Messages
- 713
- Reaction score
- 306
- Location
- Elk Grove, CA
- Vehicle(s)
- 1999 Honda Civic EX, 2019 Honda Civic Si
- Thread starter
- #1
For those who are unaware, due to ethanol restrictions in the state, no regular consumer pump sells 93 octane fuel, though we do have E85 pumps here and there.
So I had done my research in the past about where to get racing fuel, and I finally started asking about it at a place in my area. The woman said that it's really supposed to be for off-road use here, but that if I choose to do with it what I will then that's on me. I had to fill out forms and stuff declaring that, and next time I do a fill-up I'll consider doing a blend with 91 to achieve 93.
The different unleaded octane ratings offered that I heard were 95, 98, 100, and 110. I didn't get any particular brand names or anything, but my guess is with it being race fuel and all that it is all top-tier gasoline.
Now comes an interesting concept, which is if I choose to ever purchase them as canisters. A five-gallon canister costs the following amounts for each rating (which I will recognize is significantly more expensive than others that can buy 93 in other states, but bear with me for now):
95 - $59.50
98 - $57.45
100 - $55.70
110 - $54.75
So the first question I asked myself is: "Why are higher ratings cheaper?" Then it occurred to me that if I'm trying to achieve a certain rating in a blend (such as 93), then I would need less of their gasoline to fill up, so I would be paying more on my end to fill up the rest with 91.
I'm doing the math with you guys live here with a piece of paper, pencil, and calculator, so hear me out and tell me if my numbers make sense here. Our tank can hold 12.4 gallons, so every time I fill up the tank, each rating would equate to using the following amounts of that specific gasoline:
95 - 6.2 gal
98 - 3.543 gal
100 - 2.756 gal
110 - 1.305 gal
Let's assume that 91 octane rated gas in my area is $3.50, which is about what it is here in the Sacramento area. What I'm going to do is calculate how much money I'd spend on 91 when blending against each octane rating, then I will proportionately grow/shrink that amount to the equivalent how much I'd spend for a single tank of gas.
95
$21.70 (6.2 gallons of 91) + $73.78 (6.2 gallons of 95)
= $95.48 per tank of gas
98
$31.00 (8.857 gallons of 91) + $40.71 (3.543 gallons of 98)
= $71.71 per tank of gas
100
$33.76 (9.644 gallons of 91) + $30.70 (2.756 gallons of 100)
= $64.46 per tank of gas
110
$38.83 (11.095 gallons of 91) + $14.29 (1.305 gallons of 110)
= $53.12 per tank of gas
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Okay, so the math even more so seems to favor the 110 octane fuel, which I can also get at their pump if I get approved. However, I do not know if it costs the same rate at the pump (meaning $54.75 per 5 gallons, or $10.95 per gallon).
Ignoring the fact that this is going to be considerably more expensive than just using 91, is there something that I'm missing here that suggests I should be blending more of 95 instead of less of 110 to achieve the same rating? Is the disparity between octanes an important facet that I should consider? Does the 110 have a lot more ethanol content that I should be concerned about? Is it potentially not as quality of gasoline, and should I look deeper into the brand/product they use for each one?
What other other people in California doing, and how much are they spending? I know that when I lived in the Bay Area, there was a gas station in the Woodside area that sold 100 octane at the pump for $7.60, which would be costing me $54.71 per tank, so even though it's cheaper than the 100 here, the 110 here still edges that out. Without us having 93 at all anywhere, I'm guessing this is simply the best I can possibly get.
Thanks for those who have read and/or for those who can provide some supportive input.
So I had done my research in the past about where to get racing fuel, and I finally started asking about it at a place in my area. The woman said that it's really supposed to be for off-road use here, but that if I choose to do with it what I will then that's on me. I had to fill out forms and stuff declaring that, and next time I do a fill-up I'll consider doing a blend with 91 to achieve 93.
The different unleaded octane ratings offered that I heard were 95, 98, 100, and 110. I didn't get any particular brand names or anything, but my guess is with it being race fuel and all that it is all top-tier gasoline.
Now comes an interesting concept, which is if I choose to ever purchase them as canisters. A five-gallon canister costs the following amounts for each rating (which I will recognize is significantly more expensive than others that can buy 93 in other states, but bear with me for now):
95 - $59.50
98 - $57.45
100 - $55.70
110 - $54.75
So the first question I asked myself is: "Why are higher ratings cheaper?" Then it occurred to me that if I'm trying to achieve a certain rating in a blend (such as 93), then I would need less of their gasoline to fill up, so I would be paying more on my end to fill up the rest with 91.
I'm doing the math with you guys live here with a piece of paper, pencil, and calculator, so hear me out and tell me if my numbers make sense here. Our tank can hold 12.4 gallons, so every time I fill up the tank, each rating would equate to using the following amounts of that specific gasoline:
95 - 6.2 gal
98 - 3.543 gal
100 - 2.756 gal
110 - 1.305 gal
Let's assume that 91 octane rated gas in my area is $3.50, which is about what it is here in the Sacramento area. What I'm going to do is calculate how much money I'd spend on 91 when blending against each octane rating, then I will proportionately grow/shrink that amount to the equivalent how much I'd spend for a single tank of gas.
95
$21.70 (6.2 gallons of 91) + $73.78 (6.2 gallons of 95)
= $95.48 per tank of gas
98
$31.00 (8.857 gallons of 91) + $40.71 (3.543 gallons of 98)
= $71.71 per tank of gas
100
$33.76 (9.644 gallons of 91) + $30.70 (2.756 gallons of 100)
= $64.46 per tank of gas
110
$38.83 (11.095 gallons of 91) + $14.29 (1.305 gallons of 110)
= $53.12 per tank of gas
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Okay, so the math even more so seems to favor the 110 octane fuel, which I can also get at their pump if I get approved. However, I do not know if it costs the same rate at the pump (meaning $54.75 per 5 gallons, or $10.95 per gallon).
Ignoring the fact that this is going to be considerably more expensive than just using 91, is there something that I'm missing here that suggests I should be blending more of 95 instead of less of 110 to achieve the same rating? Is the disparity between octanes an important facet that I should consider? Does the 110 have a lot more ethanol content that I should be concerned about? Is it potentially not as quality of gasoline, and should I look deeper into the brand/product they use for each one?
What other other people in California doing, and how much are they spending? I know that when I lived in the Bay Area, there was a gas station in the Woodside area that sold 100 octane at the pump for $7.60, which would be costing me $54.71 per tank, so even though it's cheaper than the 100 here, the 110 here still edges that out. Without us having 93 at all anywhere, I'm guessing this is simply the best I can possibly get.
Thanks for those who have read and/or for those who can provide some supportive input.
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