diesdown

Champion Author
North Carolina
Posts:1,700 Points:514,500 Joined:May 2011
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Message Posted: Apr 27, 2012 9:24:39 AM
I do agree...
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MertieMan

Champion Author
Lexington
Posts:14,803 Points:2,898,535 Joined:May 2005
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Message Posted: Apr 24, 2012 2:39:39 AM
If you have water in your tank it isn't from the gasoline. You could possibly be getting water in around the cap or some other way. Car washes do not cause gas to have water in it and the majority of all tanks now are fiberglas underground tanks.
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jorobins538

Champion Author
Chicago
Posts:4,732 Points:638,320 Joined:Sep 2009
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Message Posted: Apr 23, 2012 11:24:03 AM
nope - but I do avoid stations with a car wash since I found water in my tank.
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ultimate

Champion Author
New Jersey
Posts:4,783 Points:1,335,670 Joined:May 2004
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Message Posted: Apr 23, 2012 3:10:43 AM
yes
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forresj

Champion Author
Wilmington
Posts:2,800 Points:546,180 Joined:May 2005
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Message Posted: Apr 21, 2012 9:42:19 AM
Some gas station owners are sometime dishonest. Some have been known to add a little water into gas tanks.
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PatAZ

Champion Author
Tucson
Posts:9,253 Points:122,460 Joined:May 2008
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Message Posted: Apr 21, 2012 8:16:02 AM
Yes
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kellyoneal

Champion Author
Louisville
Posts:2,430 Points:707,740 Joined:Mar 2011
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Message Posted: Apr 21, 2012 6:11:23 AM
no
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WES03

Champion Author
Maryland
Posts:4,859 Points:1,267,995 Joined:Feb 2009
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Message Posted: Apr 21, 2012 4:58:58 AM
I have no clue.
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ricebike

Champion Author
New Jersey
Posts:10,048 Points:1,858,645 Joined:Oct 2005
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Message Posted: Apr 21, 2012 12:08:35 AM
no difference in my local area; they all have up to 10% ethanol in them
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grunt88

Rookie Author
Florida
Posts:69 Points:72,080 Joined:Mar 2012
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Message Posted: Apr 20, 2012 6:56:43 PM
i notice it
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Tweak3D

Rookie Author
Tacoma
Posts:34 Points:30,865 Joined:Jun 2011
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Message Posted: Apr 19, 2012 1:52:06 PM
As far as gas goes, the biggest difference is if it contains ethanol or not.
Diesel varies based on temperature and blends made for freezing temps.
Other than that, each region is going to have fairly similar gas as it all comes out of basically the same distirbution points and only the additives vary which honestly do not make that much of a difference.
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Gas_Buddy

Champion Author
Maryland
Posts:25,991 Points:3,036,990 Joined:Aug 2004
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Message Posted: Apr 17, 2012 5:46:00 PM
Banjoe:
"I've experienced tremendous (20%) mileage variations between fuel supplies depending on the season and location. After burning winter diesel in Manitoba, we had the chance to run some nice Florida fuel through the Golf and experienced extended mileage. I'm thinking it's because of the cold weather blends or maybe Florida diesel is just that much better but there are variations out there."
If you're talking about different blends of fuel and different driving conditions (be it altitude or something else), or driving differently (be it speed, open highway versus crowded urban driving, etc.), as well as differences between winter-summer/California-Winnipeg mandated blends, you're obviously going to experience different results, even if all the driving style and/or conditions are identical.
You're somewhat saying "I buy Kentucky Fried Chicken in Winnipeg and, you know it doesn't taste anything like mom's chicken pot pie...Aren't they both made from the same chickens?" Yes...and no.
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GBMAX

Champion Author
Phoenix
Posts:4,664 Points:1,903,555 Joined:Feb 2005
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Message Posted: Apr 17, 2012 4:03:29 PM
A few have worse.
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13Octane

Champion Author
Tucson
Posts:2,147 Points:332,165 Joined:Aug 2005
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Message Posted: Apr 17, 2012 11:49:36 AM
i would like to think not, but i guess there are better gas stations and i just dont know where. gas is only 80% gas and 20% fillers like oxygen, cat tails, sand, chili, and who knows what else. we are getting ripped off on all counts.
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Gas_Eyes

Champion Author
Dallas
Posts:2,692 Points:647,785 Joined:Mar 2011
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Message Posted: Apr 17, 2012 6:49:04 AM
I started a post http://www.dallasgasprices.com/Forum_MSG.aspx?master=&category=1056&topic=491716&page_no=1&FAV=N
There are several replies there that describes how gasoline is distributed. In a city, all gasoline come from essentially the same refinery. The difference is the additives each brand puts in. So the mileage should not differ. What is different is the amount of detergent that is added to the base refined gasoline like the top tier gas station.
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Gas_Eyes

Champion Author
Dallas
Posts:2,692 Points:647,785 Joined:Mar 2011
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Message Posted: Apr 17, 2012 6:43:19 AM
I prefer to fill from gasoline stations that is certified as Top Tier Gasoline. They can be found at http://www.toptiergas.com/retailers.html
They include several name brand and some smaller ones.
They are endorsed by six car companies GM, Honda, Toyota, Mercedes, VW and Audi. They have additives that are higher than the EPA minimum, which will keep the engine cleaner and better in the long run.
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Banjoe

Champion Author
Winnipeg
Posts:4,279 Points:617,270 Joined:Apr 2011
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Message Posted: Apr 17, 2012 5:03:32 AM
I've experienced tremendous (20%) mileage variations between fuel supplies depending on the season and location. After burning winter diesel in Manitoba, we had the chance to run some nice Florida fuel through the Golf and experienced extended mileage. I'm thinking it's because of the cold weather blends or maybe Florida diesel is just that much better but there are variations out there.
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ProfDude

Champion Author
Illinois
Posts:2,210 Points:450,285 Joined:Jan 2012
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Message Posted: Apr 16, 2012 10:14:39 PM
I have read about this fuel mileage differential several times on GB forums. In nearly 40 years of driving I have never conclusively seen it first hand.
I do track purchases, and I am trying to find such a nugget in the data - no luck so far.
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Gas_Buddy

Champion Author
Maryland
Posts:25,991 Points:3,036,990 Joined:Aug 2004
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Message Posted: Apr 16, 2012 5:05:34 PM
"do u agree"?
No, I don't agree. The slight difference that you might think you notice is a result of slightly different driving conditions, be it roads, traffic, manner of driving.
But, if you're going to tell people that you "paid close attention to my mileage when purchasing gas at a specific gas supply chain..." and "then comparing it to others...", you might want to tell people how you conducted your formal testing, what fuel brands you tested, and what your results were.
But, a further but, can you tell us what you mean by "purchasing gas at a specific gas supply chain"?
What is a "gas supply chain?
It's probably naive of me to ask, but have you posted gas prices for the various brands of gas you've bought, perhaps gas prices from the "specific gas supply chain" you're talking about, or the others you compared it to?
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PatAZ

Champion Author
Tucson
Posts:9,253 Points:122,460 Joined:May 2008
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Message Posted: Apr 16, 2012 10:14:18 AM
Yes I have.
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OceanArcher

Champion Author
Mississippi
Posts:5,723 Points:1,331,300 Joined:May 2004
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Message Posted: Apr 16, 2012 9:48:35 AM
I agree -- ethanol free fuel works better in my car than E10 ...
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PhilnTX

All-Star Author
Dallas
Posts:656 Points:438,330 Joined:Sep 2011
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Message Posted: Apr 16, 2012 7:50:25 AM
I get better mileage when I purchase ethanol free gasoline in Oklahoma than the 10% ethanol blend I purchase in TX.
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tlhIngan_

Champion Author
Calgary
Posts:2,042 Points:394,635 Joined:Apr 2012
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Message Posted: Apr 16, 2012 7:37:04 AM
Before someone comes on here and says this, let me say this. ALL REGULAR GASOLINE IS THE SAME when it comes out of the refinery, that's why different brands sell gas to eachother. Then each brand adds its own mix of additives (detergents for the most part) before the gas is delivered to a retail location. The gasoline is the same, it's the additives that make a difference.
Different engines will respond differently to the additives, and never in a good way. These additives are there to clean your engine up a little bit, but some of them actually interfere with proper combustion or actually clog things up inside. One of my vehicles runs exactly the same (mileage-wise) on Esso, Husky or no-name cheap gas, but runs extremely poorly on Petro-Canada and Shell. I guess she really doesn't like the crap Shell and P-Can add to their gas, because I need a full-tank of something else in order to clean their gunk out of my engine. This is one case where no additives are actually better then some.
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TomeHills

Veteran Author
New Mexico
Posts:402 Points:286,680 Joined:Jul 2009
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Message Posted: Apr 16, 2012 7:08:01 AM
yes
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nvoelsch

Sophomore Author
Eugene
Posts:137 Points:90,660 Joined:Nov 2011
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Message Posted: Apr 16, 2012 6:21:35 AM
I haven't consecutively experienced this, but sometimes you get what you pay for.
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