Acceleration Times 227HP Vs 250Hp
- Thread starter Pitter
- Start date
That's exactly what I'm saying. As I stated originally, mine is a "seat of the pants" comparison. My perception is that there is a RESPONSIVENESS advantage that 93 offers. HOWEVER that difference doesn't come close to outweighing the cost premium of 93. I'm permanently on 87 going forward.
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- Soon to be 2.5T CX-5
I don't know about 30 cent intervals. There's a much bigger price difference around here.
There was a $.30 difference in 87 and 93 yesterday evening and this morning here at the cheaper gas stations. Sams Club, Wal-Mart, etc, however the average is $.50, at stations like Exxon etc.
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- Soon to be 2.5T CX-5
Gas is also $2.09-$2.29 a gallon here this morning for 87. Not bad, not bad, but still slightly above the $2 price ceiling I think gas should have anyways.
What part of the country do you live in?
I haven't seen a $0.30 difference between 87 and 93 in probably a decade.
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- RDX Aspec Adv.
I just wish we had 93, but at my elevation, 91 is as high as it gets unless you want to go to the race pumps, where you can get 93, 98 octane, etc.
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- Central Virginia
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- 2019 CX-5 Reserve
I just added a Weighted Average MPG calculation to the figures to get a little more accuracy.
Per the computer, there's a 0.9 MPG spread between octanes:
93=23.7 MPG
87=22.8 MPG
Again, my calculations indicate that the computer understates mileage in my car by 0.486 MPG. But I trust it's relative consistency more than my calculations for only 3 tanks of 87 octane (too much potential variance in not-completely-full tanks and not enough tanks for it to average out). The Computer Mileage for those 3 tanks of 87 were: 22.8/22.9/22.8
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- Soon to be 2.5T CX-5
I can get 110 octane here at the pump at select stations. Haven't priced it in awhile, Ill swing by there and see. Same stations normally have like 95 or 98 as well.
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- RDX Aspec Adv.
They have 116, but anything over 98 you buy inside.
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- Soon to be 2.5T CX-5
Southeast.
As stated before, I miss the days of $.10 increments between 87,89, and 93.
I haven't seen it in awhile either, it kinda surprised me as well, the "top tier" type stations are currently $.50 difference between 87 and 93.
Ri..87-$2.38
93-$2.88
93-$2.88
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- Central Virginia
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- 2019 CX-5 Reserve
Right.
The 87 was blended with some 93, and the 93 was blended with some 87. So don't you think the spread between 100% 87 and 100% 93 would be greater? And the computer's mileage for those 3 tanks of "mostly 87" were 22.8/22.9/22.8 Not a huge data set but much of a spread, either.
Regarding the spread you noted in calculated mileages in the most recent 9 tanks, that was my By Hand Calculation where there are variances in not-so-full tanks...it averages out over time. There's only a 1.7 MPG spread in those 9 tanks per the computer, which is the reliably consistent calculation.
Regarding my $1.50/tank...yeh, that was a fantasy. Don't know what happened. Should be $4.50 or so at the current spread. And I pointed out elsewhere that the spread during the summer has been higher (nearly double at one point), but it's settled down since. I just went online and looked at the BP I buy gas at: $2.31 for regular/$2.61 for premium. That IS low. The per-tank spread got close to $8 at one point.
I'm not wedded to these figures. I intentionally post all the details so as to get different eyes on it. When I look at it, I might just be seeing what I think should be there. I'm more motivated to fix/improve than I am to "be right."
edit to add: I just went shopping and got gas. BP's spread is back up to 72 cents a gallon ($2.31 vs $3.03), which puts the difference at almost <s>$11/tank</s>. Regular price dropped, Premium stayed the same. Exxon's spread is at 59 cents ($9/tank).
edit $2: The spread--including MPG difference--is $7/tank, not $11.
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The 87 & 93 spread here is .60 today. That*s pretty much the range it seems to stay in so it*s enough to consider if it*s worth it. I appreciate all the info here to help make that decision.
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- '22 X3 M40i
Yeah, my rough calculations showed it would be about a $1 a day difference based on my mileage. My right foot might justify it if it notices a difference.
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- Central Virginia
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- 2019 CX-5 Reserve
I have one stretch of road in particular I'm on every once in a while where there are times I cannot resist putting the transmission in Manual Mode and winding it out. One professional reviewer commented that these are sports cars with CUV bodies. They might not be that <i>good</i>, but if they came with a manual transmission, I don't think I would have a "mild driving state" behind the wheel. My entire area is winding country roads, but Manual Mode in an automatic only does so much for you.
