C63/C63S AMG
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Old Jun 26, 2019 | 03:53 AM
  #1  
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C63s Cabriolet, BMW M4, Civic
Costco gas

Any body know where Costco got their gas from? Anyone here used Costco gas on their AMG?
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Old Jun 26, 2019 | 06:38 AM
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Mercedes-Benz E63s AMG
I'm sure its from different sources, but I use it all the time, no problems.
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Old Jun 26, 2019 | 06:52 AM
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Costco gas qualifies as a Top Tier gasoline and I use it in all of my cars.

https://toptiergas.com/licensed-brands/

https://toptiergas.com/gasoline-sponsors/

Mike.
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Old Jun 26, 2019 | 11:13 AM
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19 E63s, 23 M3 compX, B9 SQ5
^ Yep. Costco is Top Tier gas as good as Shell/Mobil/BP.
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Old Jun 26, 2019 | 11:33 AM
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Costco's motor oil even beat out Mobil One in a test.
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Old Jun 26, 2019 | 03:41 PM
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What is the highest grade fuel they offer?
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Old Jun 26, 2019 | 03:57 PM
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Only 91. Very hard to find anything higher then 91.
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Old Jun 26, 2019 | 03:58 PM
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19 E63s, 23 M3 compX, B9 SQ5
Not true. They have 93, depending on what state you're in just like any other gas station.
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Old Jun 27, 2019 | 10:18 PM
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Please delete! Not the Costco has argument again!!!!
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Old Jun 27, 2019 | 11:05 PM
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C63
I read that it's actually the better gas of all the top tier.
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