Fuel Pump/Top Tier Fuels

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BP/Amoco premium 93 is the best gas I have used except for maybe Shell's premium 93. My cars just seem to run better on these fuels. I can run them in my survivor 63 R code(427) and my 70 Boss 302 without any pinging.
 
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We have tons of Turkey Hills and they are cheap. Being Top-Tier is a deal-maker.I used it a lot for a while, then discoved a local company Petrolium Service Company PSC is ethanol-free.It's cash-only but only a few pennies less than TH. I've not made final determinations on mpg yet, but I have gotten some darn poor mpg on TH. PSC seems a hair better. Some of the BP stations are kind of cheap, maybe I'll migrate back to them.
 
Originally Posted By: Jaymus

BTW, 'Top-Tier' mandates that to meet their specifications, the gasoline must have no less than 8% and no more than 10% ethanol. Maybe Amoco/BP and Exxon/Mobil prefer to use less than 8%. Fine with me.


Once again, there is no such mandate on TT fuel at the pump. The TEST fuel used to evaluate the additive package submitted for TT status is what is mandated to contain a percentage of ethanol, since ethanol is in wide spread use and its presence degrades the performance of many additives for fuel.
 
Also depends on where you are. There are a lot more Turkey Hill minit markets around here than BP or Mobil stations. That said, I get my gas from Wawa.

Originally Posted By: SilverGGA
Depends on who you compare them to. I bet they are pretty small compared to Mobil or BP...

Originally Posted By: Canawler
Originally Posted By: frank83
Originally Posted By: SilverGGA
http://www.toptiergas.com/retailers.html

When "Turkey Hill Minit Markets" can afford and be certified for Top Tier, I would never put BP or Mobil gas into my cars unless I am in a desert, with fuel light on, and they are the only gas station within 30 miles.

I have no interest in arguing whether BP or Mobil may or may not exceed Top Tier quality, and if so, why they do not get certified.


Haha, Turkey hill, I have them near me. They are a very small outfit.


I live in the heart of Turkey Hill country. I'm actually right across the Susquehanna River from their headquarters. The website says they have over 240 locations but what I didn't know until now was that the convenience store division is actually owned by the Kroger grocery store chain. It said they own 5 convenience store chains all across the country. I would assume they use the same top tier designation at all of them.

Not such a small outfit after all.
 
Originally Posted By: jmac
Originally Posted By: Jaymus

BTW, 'Top-Tier' mandates that to meet their specifications, the gasoline must have no less than 8% and no more than 10% ethanol. Maybe Amoco/BP and Exxon/Mobil prefer to use less than 8%. Fine with me.


Once again, there is no such mandate on TT fuel at the pump. The TEST fuel used to evaluate the additive package submitted for TT status is what is mandated to contain a percentage of ethanol, since ethanol is in wide spread use and its presence degrades the performance of many additives for fuel.


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

Please tell me where it says only the test fuel has to have ethanol, but when it goes out to be sold at markets, it doesn't have to have it.
 
Originally Posted By: Jaymus
Originally Posted By: jmac
Originally Posted By: Jaymus

BTW, 'Top-Tier' mandates that to meet their specifications, the gasoline must have no less than 8% and no more than 10% ethanol. Maybe Amoco/BP and Exxon/Mobil prefer to use less than 8%. Fine with me.


Once again, there is no such mandate on TT fuel at the pump. The TEST fuel used to evaluate the additive package submitted for TT status is what is mandated to contain a percentage of ethanol, since ethanol is in wide spread use and its presence degrades the performance of many additives for fuel.


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

Please tell me where it says only the test fuel has to have ethanol, but when it goes out to be sold at markets, it doesn't have to have it.


1.1 Retail Gasoline Performance Standards. The deposit control performance of unleaded gasoline conforming to section 1 of this document shall be met at the retail level in all grades of gasoline sold by a fuel company in all marketing areas of a selected nation.

1.2 Deposit Control Additive Requirements. The deposit control additive used to meet the performance Standards described in 1.3 shall meet the substantially similar definition under Section 211(f) of the Clean Air Act. Also, the additive shall be certified to have met the minimum deposit control requirements established by the U.S. Environmental Protection Agency (EPA) in 40 CFR Part 80. Lastly, the additive shall be registered with the EPA in accordance with 40 CFR Part 79.

1.3 Deposit Control Initial Performance Standards.

TEST METHOD 1.3.1.1
... Tests demonstrating base fuel minimum deposit level (1.3.1.2) and additive performance (1.3.1.3) shall be conducted using the same engine block and cylinder head. All results shall be derived from operationally valid tests in accordance with the test validation criteria of ASTM D 6201.

1.3.1.3 Demonstration of Performance. The base fuel from 1.3.1.2 shall contain enough deposit control additive such the IVD is no more than 50 mg averaged over all intake valves.

1.3.2.2 Base Fuel. Combustion chamber deposits shall be measured for the base fuel from 1.3.1.2.

Section 1.3 is all about in-house test methods. No where does it claim to be about production fuel delivered at the pump, only the additives used in the fuel. In order to test an additive you have to define the base fuel used in those tests. Moreover, that base fuel must produce deposits (the control) that the additives being tested can be shown to prevent (the test).
 
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