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04-11-2025, 11:57 PM
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#1 |
 
Drives: 2023 2SS 1LE M6 Join Date: Jan 2024
Location: PNW
Posts: 3
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Costco Gas Check Engine Light
I had a check engine light came on and it was related to exhaust emissions system on the myChevrolet app.
I took it to a dealership and they said it was P2098 code. They said it was because the ethanol content in the gas too high. I always use premium gas and 2 months ago I switched to Costco gas. Just wondering if anyone had the same issue and should I continue using gas from Costco? Thanks Last edited by lowflyinghawk; 04-11-2025 at 11:58 PM. Reason: minor editing |
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04-12-2025, 08:09 AM
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#2 |
 Drives: 2014 2SS/RS Join Date: Jan 2014
Location: Eastern Nebraska
Posts: 465
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FWIW, I've been using Costco gas (91 is all we get in Nebraska) since 2014 or whenever the local Costco opened.
I filled up 3 days ago, no problems. Not to say the gas is the same here as up where you are. I do have a L99 that has lower compression than you however. Wondering if the transport put 87 in their 91 underground tank?
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04-12-2025, 08:16 AM
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#3 |
 Drives: 2010 Chev camaro Join Date: Apr 2025
Location: Salem
Posts: 111
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04-12-2025, 09:12 AM
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#4 |
          
Drives: 2023 ZL1 Vert M6 "Sharky" Join Date: Mar 2020
Location: Earth
Posts: 4,547
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I know lots of people use it but I never have, something about Costco and gas just does not sit right with me.
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