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#1848741 - 04/07/10 07:25 PM A Reason to AVOID Top Tier Gas?
BBDartCA Offline


Registered: 04/04/10
Posts: 473
Loc: Washington State
If I interpret this to mean that all top tier gas has between 8...10% of ethanol, then I'm going to go out of my way to avoid the stuff!

http://www.toptiergas.com/deposit_control.html

1.3.1.2 Base Fuel. The base fuel shall conform to ASTM D 4814 and shall contain commercial fuel grade ethanol conforming to ASTM D 4806. All gasoline blend stocks used to formulate the base fuel shall be representative of normal U.S. refinery operations and shall be derived from conversion units downstream of distillation. Butanes and pentanes are allowed for vapor pressure adjustment. The use of chemical streams is prohibited. The base fuel shall have the following specific properties after the addition of ethanol:

1. Contain enough denatured ethanol such that the actual ethanol content is no less than 8.0 and no more than 10.0 volume percent.

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#1848754 - 04/07/10 07:39 PM Re: A Reason to AVOID Top Tier Gas? [Re: BBDartCA]
Colt45ws Offline


Registered: 08/15/06
Posts: 8851
Loc: Central Washington
You cant get away from it.
http://www.e0pc.com/WA.php
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#1848779 - 04/07/10 07:59 PM Re: A Reason to AVOID Top Tier Gas? [Re: Colt45ws]
AuthorEditor Offline


Registered: 05/30/08
Posts: 1908
Loc: New York
Doesn't matter around here. I haven't seen anything but E10 gas in years. Is "Top Tier" something people talk about in your neck of the woods? I never heard of it until someone mentioned it on BITOG last week. From what I hear you really don't know where the gas comes from based on the sign in the gas station--they generally get it from the same place. I have definitely seen the name brand trucks filling the tanks in the no name stations.

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#1848780 - 04/07/10 07:59 PM Re: A Reason to AVOID Top Tier Gas? [Re: Colt45ws]
JSP Offline


Registered: 07/31/08
Posts: 127
Loc: WA, USA
I originally thought that as well, but that requirement is only for the fuel used during testing. One example is I have seen Shell stations that have stickers on the pumps that state that their premium fuel contains no ethanol and Shell is a top tier.

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#1848791 - 04/07/10 08:11 PM Re: A Reason to AVOID Top Tier Gas? [Re: AuthorEditor]
mechanicx Offline


Registered: 10/23/09
Posts: 8576
Loc: Ohio
The base gas might come from the same place, but a top tier brand like Shell might check the gas and reject it if it was watered down or some other issue. Also the top tier brand will have the beands cleaning additive pack that makes all the difference. Other brands might take any gas without checking it at the lowest price and not have any detegents added. It doesn't matter who delivered the gas. That doesn't mean it's the same.

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#1848792 - 04/07/10 08:11 PM Re: A Reason to AVOID Top Tier Gas? [Re: JSP]
cchase Offline


Registered: 11/03/09
Posts: 4018
Loc: New England
I hesitate to mention this because I rarely put any stock in peoples mpg claims online, but...

I switched over from "whatever's cheapest" (usually Mobil) to Shell 2 tanks ago and with the same driving style, speed, and routes went up 3 mpg on my GTO (premium). It's enough to keep me sticking with the Shell.

Around here there's no such thing as non-E10 fuel.

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#1848812 - 04/07/10 08:29 PM Re: A Reason to AVOID Top Tier Gas? [Re: cchase]
Hemi426 Offline


Registered: 03/21/10
Posts: 754
Loc: PA
Shell is top-tier and my truck runs great on it


Edited by Hemi426 (04/07/10 08:36 PM)

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#1848816 - 04/07/10 08:35 PM Re: A Reason to AVOID Top Tier Gas? [Re: cchase]
Hemi426 Offline


Registered: 03/21/10
Posts: 754
Loc: PA
Anybody know why BP and Sunoco have never made an effort to get their fuels top-tier rated?

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#1848852 - 04/07/10 09:09 PM Re: A Reason to AVOID Top Tier Gas? [Re: Hemi426]
Ben99GT Offline


Registered: 02/25/05
Posts: 4311
Loc: MS
Originally Posted By: Hemi426
Shell is top-tier and my truck runs great on it


My vehicle runs frikkin' fantastic on Redline, Redline, Redline, Redline oil, some might say it is the nectar of the gods. grin stooges

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#1848858 - 04/07/10 09:13 PM Re: A Reason to AVOID Top Tier Gas? [Re: BBDartCA]
Quest Offline


Registered: 12/19/04
Posts: 7355
Loc: beaver land EH?
Originally Posted By: BBDartCA
If I interpret this to mean that all top tier gas has between 8...10% of ethanol, then I'm going to go out of my way to avoid the stuff!

http://www.toptiergas.com/deposit_control.html

1.3.1.2 Base Fuel. The base fuel shall conform to ASTM D 4814 and shall contain commercial fuel grade ethanol conforming to ASTM D 4806. All gasoline blend stocks used to formulate the base fuel shall be representative of normal U.S. refinery operations and shall be derived from conversion units downstream of distillation. Butanes and pentanes are allowed for vapor pressure adjustment. The use of chemical streams is prohibited. The base fuel shall have the following specific properties after the addition of ethanol:

1. Contain enough denatured ethanol such that the actual ethanol content is no less than 8.0 and no more than 10.0 volume percent.


So what? Avoid them for what reasoning? All the anecdotal reasonings posted in the past?

modern computer controlled EFI cars can handle all sorts of fuel types and blends and electrical fuel pumps can do so too, yet still provides a long and reliable service life.

So why fuzz over ethanol blended gas? Just use it.

Q.
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#1848928 - 04/07/10 10:18 PM Re: A Reason to AVOID Top Tier Gas? [Re: Colt45ws]
BBDartCA Offline


Registered: 04/04/10
Posts: 473
Loc: Washington State
Originally Posted By: Colt45ws
You cant get away from it.
http://www.e0pc.com/WA.php


The Conoco stations in Ellensburg proudly sell E0!
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#1849065 - 04/08/10 04:52 AM Re: A Reason to AVOID Top Tier Gas? [Re: BBDartCA]
Patman Offline



Registered: 05/27/02
Posts: 19516
Loc: Oakville, Ontario
Shell is top tier gas here in Canada and their premium has no ethanol in it at all. I get 10% better MPG (21-22 vs 19-20 average) using their premium versus Sunoco's Ultra 94 which has 10% ethanol here.
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#1849066 - 04/08/10 04:55 AM Re: A Reason to AVOID Top Tier Gas? [Re: Colt45ws]
Scooter_man Offline


Registered: 03/24/10
Posts: 294
Loc: Missouri, USA
Originally Posted By: Colt45ws
You cant get away from it.


I can't get away from it either, it's all over Missouri. Supposedly, it's not required (Ethanol) in the Premium blends (91 or higher), but my little Chevy Metro runs on anything.
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Member of the 100+ mpg Club!

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#1849072 - 04/08/10 05:16 AM Re: A Reason to AVOID Top Tier Gas? [Re: Scooter_man]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 17691
Loc: Sunny Florida
duh, you get better mileage without alcohol. It has less energy per unit!

Top Tier is simply a standard. At least you know it meets certain minimums.

Extensive dyno work showed me that in my area the BP had the lowest knock values, thus greatest HP.
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#1849364 - 04/08/10 11:20 AM Re: A Reason to AVOID Top Tier Gas? [Re: cchase]
Bamaro Offline


Registered: 08/03/03
Posts: 1338
Loc: Balto.
Originally Posted By: cchase
I hesitate to mention this because I rarely put any stock in peoples mpg claims online, but...

I switched over from "whatever's cheapest" (usually Mobil) to Shell 2 tanks ago and with the same driving style, speed, and routes went up 3 mpg on my GTO (premium). It's enough to keep me sticking with the Shell.

Did you factor in warmer temps?
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