Racing Gas E100
So I'm out for a drive today (not in the Boxster) and I stop for gas at a station not far from my house but in a direction I rarely travel and I notice that they have an E100 pump. This was news to me as I've been doing major searches for a station that even had 93 as 91 is seemingly the best I could do.
No posted prices, but the person who used the pump last left the receipt which read $7.09/gallon...they only bought .83 gallons for just over $5. I currently have just about 1/2 tank in the Boxster now, but will probably head down there tomorrow to fill the tank. Obviously not with 8gal of E100, but 2gal with the rest 91 should give me the ratio I'm looking for. Good idea? Bad idea? Waste of time and money? I'm sure most of you would know better than I do. Thx. |
E100, as in 100% ethanol? Let us know how that goes for you.
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my thought was not 100% ethanol, but rather 100 octane. I don't think that that is what the E was for.
Since ethanol is an additive that is supposed to make gasoline "cleaner" and "cheaper" how could 100% ethanol cost more than regular gas? Not trying to be snarky as I was looking for advice, the question is legit. |
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thanks...rather look like an anonymous idiot to you guys than a real life one to my local mechanic.
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Even if you do some day find a station that sells "racing gas" and it doesn't have lead in it, don't bother putting it in a car designed to run on 93 octane. A car designed for street gas won't see any benefit to higher octane gasoline. In fact, energy content is typically lower in gasoline of higher octane, so power will probably be lower with the race gas.
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FYI, BP stations have 93. Not sure if you have those in AZ, though.
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I know lots of Porsche owners who mix 100 octane gas with their 91 (because this is the only fuel available) octane gas to net out at about 93.
No lead, and I am not sure of the alcohol content, but it is 10% max. Most Porsche factory tuned DME's can maximize about 96-97 octane. Depending on the car (n/a or turbo), weather, and altitude, for example. Any amount about this is a waste, without a customized tune. Is 93 "better" than 91? Yes. is 96-97 octane better than 93? Yes. Does this really matter much in street driving? Not really. But, it depends on how you drive.:) |
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I'm neither a chemist or a mechanic, but my understanding from the earlier posts is that the E100 is 100% ethanol and not 100 octane. 2gal of 100 octane with 10gal of 91 would level out to 92.5 judge for yourself if its necessary...Putting 100% ethanol into an engine not built for it is just wrong for too many reasons to list. I think I'm up to speed now, but feel free to correct me if Im wrong. |
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