Gas pump question
Tourer
Joined: Feb 2007
Posts: 484
Likes: 1
From: Oviedo, FL
I always use a gas station where they have separate nozzles for the different octanes. However, some of the pumps I think have an internal mechanism to clear the line when switching octanes, because I often hear a pump noise run before filling my car.
Outstanding HDF Member
Joined: Jun 2008
Posts: 2,134
Likes: 4
From: Third Coast, South Texas
There was 4 of us and the other 3 got the regular price at the other pumps. Truth is, I didn't even notice at first. We were on a long trip and I was saving all of my receipts for fuel mpg calculations. The pump didn't give a receipt so I went inside looking for a $15 receipt from pump x and thats when the smart a$$ got smart a$$ with me. I figured out the price was wrong cuz the gallons matched up. Tried to tell her and blah blah blah.
Road Warrior
Joined: Dec 2008
Posts: 1,349
Likes: 25
From: VALE NC
ok there are a lot of pump techs out there we should start a web site
pump tech .com
i belive it its a pint that come out of a single hose disp from sale before so to answer your question on a single hose unit the first pint is the last product pump most nozzles used today are presure nozzles which means if disp is not on it will not drain hose
thanks gabe
pump tech .com
i belive it its a pint that come out of a single hose disp from sale before so to answer your question on a single hose unit the first pint is the last product pump most nozzles used today are presure nozzles which means if disp is not on it will not drain hose
thanks gabe
Banned
Joined: Jul 2009
Posts: 267
Likes: 8
Also, as I understand it, the presence of the octane boosting chemical is more significant than the ratio. I was told that if you mixed equal parts of regular and premium the octane effect would be greater than the midpoint between the two.
Bottom line anyway is that the small amount in the hose has no effect at all.
Bottom line anyway is that the small amount in the hose has no effect at all.
hydrocarbon and oxygenated fuels eg 50:50 of 87 and 91 will give 89.
.
Grand HDF Member
Joined: Sep 2007
Posts: 4,112
Likes: 40
From: Boise Idaho
I would guess that you are getting 1-3 quarts of reg if it's a single hose pump. I always try to pull up to a 3 hose pump, a lot of stations have both 1 and 3 hose pumps at the same location.
Outstanding HDF Member
Joined: Feb 2008
Posts: 2,706
Likes: 1
From: Sunland, CA
some *** was busted selling 87 as 91 at the 777 station in tujunga ca
i never use off brand gas and avoid stations with the fuel tracks there
you will get a lot of crap in yopur tank-ride safe
i never use off brand gas and avoid stations with the fuel tracks there
you will get a lot of crap in yopur tank-ride safe
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Road Warrior
Joined: Aug 2007
Posts: 1,599
Likes: 7
From: Hoffman Estates, IL
Hell, I run 87 frequently if (A) it's not terribly hot and (B) I'm on a long ride. Most of the dealer guys / mechanics I know are the same. 91 runs cooler - 87 runs a little warmer, but if there's good constant airflow and medium RPM's (long highway rides), it's fine.
In any case, *if* there's any fuel in the line when you start pumping, I wouldn't worry about it a bit.
In any case, *if* there's any fuel in the line when you start pumping, I wouldn't worry about it a bit.
Ultimate HDF Member
Joined: Aug 2008
Posts: 5,413
Likes: 17
From: eastern oklahoma
think of it this way. if you're riding through some tiny town like pratt kansas for example at midnite, and need gas but all they got available at the only station is 87, are you gonna fill up with it? of course you would. so any residual amount in a hose ain't gonna hurt a thing.
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