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Old 03-30-2024, 04:58 PM
  #61  
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Originally Posted by Lowknights
Someone once told me that here in Commiefornia that all the gas stations have to use the Arco/BP formula because it's more Ethanol based which burns "cleaner", which is why it makes it more expensive then other states besides all the taxes that are tacked on at the pump, haven't really looked into this to see if this is true or not.
You were told wrong. The FEDS limit oxygen to 3.5wt% ~10 vol% (ethanol is 37% oxygen). They (CARB) did drop the hammer on other pollutants such as NOX, Toxics, Benzene. CA gasoline is a weird concoction of components that meet these crazy requirements. CARB gasoline is sent to Arizona FYI.
Old 03-31-2024, 12:06 AM
  #62  
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Originally Posted by F4Gary
As noted in numerous posts, Costco IS Top Tier.
No it isn’t, there is no top tier additive that is out in at a fuel depot if they claim they are a top tier ask them where they put the additive in the fuel???
Old 03-31-2024, 01:10 AM
  #63  
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Here's a link to the WORST gas and a list of TOP TIER as of Jan 2024.

https://247wallst.com/special-report...ds-in-america/

Last edited by Zormecteon; 03-31-2024 at 01:16 AM.
Old 03-31-2024, 07:46 AM
  #64  
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Originally Posted by F4Gary
As noted in numerous posts, Costco IS Top Tier.
Originally Posted by Andy8007
No it isn’t, there is no top tier additive that is out in at a fuel depot if they claim they are a top tier ask them where they put the additive in the fuel???
The official site for listing top tier stations here

https://www.toptiergas.com/gasoline-brands/

says otherwise.

And Costco pumps display the TopTier logo. You can also read more about the approval process for licensing the display of the toptier logo at these links:

https://www.centerforqa.com/top-tier...y%20the%20logo.

https://www.toptiergas.com/retailers/#licensed

While I trust the above sites, and the integrity of the licensing process, and believe that Costco sell top tier gas in accordance with that process, its more difficult to answer the question of where it is added. Based on wording on the toptier site, it appears that most are added using an in-line injection system at the fuel supply terminal. However, its not true in all cases. I'm more skeptical of Bob is the Oil Guy posts - but several there posted that Costco adds the additive package at the retail location using some sort of built in system. I do not know that to be true, but I do consider it true that it is licensed to display the logo, and the additive package is added somewhere along the line.

Last edited by Andybump; 03-31-2024 at 08:08 AM.
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Old 03-31-2024, 01:18 PM
  #65  
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Well I'll be dipped........................... There is now a Marathon station in town! I thought they were confined to the South East.
Old 03-31-2024, 02:02 PM
  #66  
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Save $.05 per gallon when using the app at Phillips 66, Conoco or 76 stations.

https://apps.apple.com/us/app/fuel-forward/id922282104
Old 03-31-2024, 02:50 PM
  #67  
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Originally Posted by Andy8007
No it isn’t, there is no top tier additive that is out in at a fuel depot if they claim they are a top tier ask them where they put the additive in the fuel???
They have been Top Tier since March 2014.
Old 04-03-2024, 10:55 AM
  #68  
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Default Costco Top Tier - yes

Originally Posted by Andy8007
No it isn’t, there is no top tier additive that is out in at a fuel depot if they claim they are a top tier ask them where they put the additive in the fuel???
Originally Posted by Andybump
The official site for listing top tier stations here

https://www.toptiergas.com/gasoline-brands/

says otherwise.

And Costco pumps display the TopTier logo. You can also read more about the approval process for licensing the display of the toptier logo at these links:

https://www.centerforqa.com/top-tier...y%20the%20logo.

https://www.toptiergas.com/retailers/#licensed

While I trust the above sites, and the integrity of the licensing process, and believe that Costco sell top tier gas in accordance with that process, its more difficult to answer the question of where it is added. Based on wording on the toptier site, it appears that most are added using an in-line injection system at the fuel supply terminal. However, its not true in all cases. I'm more skeptical of Bob is the Oil Guy posts - but several there posted that Costco adds the additive package at the retail location using some sort of built in system. I do not know that to be true, but I do consider it true that it is licensed to display the logo, and the additive package is added somewhere along the line.
Originally Posted by F4Gary
They have been Top Tier since March 2014.
I contacted Costco and asked them where the TopTier additive package is added. Attached it the response. Its added upon receipt of deliveries. They did not elaborate.










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