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Old 07-23-2014, 10:18 AM   #1
Track_Graphics
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Did I really get 93 octane?

From the Wall Street Journal and American Petrolium Institute:
According to the American Petroleum Institute the gas-pump hose typically retains about one third of a gallon (≈1½ qts) of fuel. So when you pump a couple gallons of 93-octane premium after the previous customer pumped 87-octane regular, your fuel load would be diluted (not to mention overpriced).

But from SHELL Oil, there's about 1/2 quart of "left-over" gasoline in the hose and nozzle from the previous purchase.

Am I getting the gas I paid for?
Richard Russel, writer for Globe
Good question. For an answer I asked the folks at Shell who say you get what was left in the hose from the last time it was used – regardless of the grade involved.
“The hose and dispensing nozzle are always full of fuel,” Shell says, adding that the residual volume in the hose from the last use depends on the diameter and length of the hose but is commonly about half a litre.
The only time such a small quantity would be of concern would be when filling a very small tank, such as a motorcycle.
Shell says that, as long as the premium purchase is more than 10 litres (2.641 Gals), the total sale will be “on-spec for octane and meet the 91 AKI (Anti-Knock Index) standard.”

So API claims 3 times more in the hose than Shell......
Who to believe, or does it even matter to average riders?
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Old 07-23-2014, 10:23 AM   #2
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I don't think that half a quart of regular is going to do anything. It will be well diluted in a full tank. Just put a squeeze on the ground if it bugs you lol.
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Old 07-23-2014, 10:24 AM   #3
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Probably doesn't matter for a car but for a bike, I can see it being an issue considering the low volume. What are you going to do, pump 1-1/2qts on the ground before putting it in your tank? lol
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Old 07-23-2014, 10:25 AM   #4
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From now on I'm going to let a fellow rider fill-up first
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Old 07-23-2014, 10:28 AM   #5
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I race my R6 on 89.

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Old 07-23-2014, 10:29 AM   #6
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From now on I'm going to let a fellow rider fill-up first
PLEASE DO, I use 87.
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Old 07-23-2014, 10:29 AM   #7
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I've always shot a little bit on the ground when filling up. Not that much though..
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Old 07-23-2014, 10:31 AM   #8
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Quote:
Originally Posted by bdmpastx View Post
Probably doesn't matter for a car but for a bike, I can see it being an issue considering the low volume. What are you going to do, pump 1-1/2qts on the ground before putting it in your tank? lol
Twas joking, but this has been happening forever. Bikes are not just going to start spontaneously combusting just because this article came out. lol
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Old 07-23-2014, 10:33 AM   #9
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Quote:
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PLEASE DO, I use 87.
Guess that's why you never ride with us
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Old 07-23-2014, 10:35 AM   #10
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What I'm getting from this is using 93 octane on the grom is pointless because I would just be getting the left over regular from the previous guy? Not to mention it doesn't need it, so 93 is a waste anyway.
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Old 07-23-2014, 10:36 AM   #11
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Quote:
Originally Posted by Japawhat02 View Post
Twas joking, but this has been happening forever. Bikes are not just going to start spontaneously combusting just because this article came out. lol
Internal combustion engines don't spontaneously combust, they do it on purpose.
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Old 07-23-2014, 10:38 AM   #12
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Quote:
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What I'm getting from this is using 93 octane on the grom is pointless because I would just be getting the left over regular from the previous guy? Not to mention it doesn't need it, so 93 is a waste anyway.
You have a grom, who knew?
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Old 07-23-2014, 10:41 AM   #13
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Guess that's why you never ride with us
no, that's not the reason.
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Old 07-23-2014, 10:42 AM   #14
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I bring a couple 5 gal cans in my car. I put a gallon in the car and then fill the cans. I fill my bikes from the cans. Personally, I'm more interested in finding a place that sells methonol free gas. Anybody know of a place? Typically I get about 48mpg on my 08 CBR1000, but when I bought methonol free on Dophin Island (off Louisiana coast) last year I got 54mpg...... BIG performance difference.
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Old 07-23-2014, 10:59 AM   #15
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I want to say you had a typo when you put methonol but then you did it again. They are putting ethanol in the gas, which comes from corn. Methanol comes from trees and would only boost your octane like it's cool.


Yeah I have a grom! Jealous?
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Old 07-23-2014, 11:03 AM   #16
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Quote:
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Yeah I have a grom! Jealous?
See if you can make a post in every thread and somehow make a grom relatable to the topic
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Old 07-23-2014, 11:11 AM   #17
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Challenge accepted... Sort of. Every thread I post in I'll relate it to a grom. Just like what you do with Honda.
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Old 07-23-2014, 11:18 AM   #18
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Quote:
Originally Posted by ArkansasDave View Post
I want to say you had a typo when you put methonol but then you did it again. They are putting ethanol in the gas, which comes from corn. Methanol comes from trees and would only boost your octane like it's cool.


Yeah I have a grom! Jealous?
No - Not trume. You should do a littlme rmesmearch beforme you makme a statmement likme that.

It's NOT a typo - mevmerytime I typme the letter "e" my computmer automatically puts and "m" in front of it unlmess I backspacme it out.
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Old 07-23-2014, 11:18 AM   #19
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Quote:
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Challenge accepted... Sort of. Every thread I post in I'll relate it to a grom. Just like what you do with Honda.
Yeah, that's what I do
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Old 07-23-2014, 11:21 AM   #20
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Quote:
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Yeah, that's what I do
Don't know why he would say that... you are a die hard potato head now with that Sportster...


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