Is Costco Gas Good

Is Costco Gas Good In 2022? (Top Tier, Who Makes It + More)

The Kroger Company



Founded 1883

; 139 years ago




Cincinnati, Ohio

, U.S.
Bernard Kroger
Cincinnati, Ohio


Number of locations
2,868, including 2,726 supermarkets and 142 jewelers (Q3 2021)


Area served
United States
Key people

Rodney McMullen



& Chairman)


Gary Millerchip (



Yael Cosset (



Stuart Aitken (






Other specialty,

Revenue Increase


132.5 billion




US$2.67 billion




US$2.585 billion



Total assets


US$45.3 billion



Total equity


US$7.88 billion



Number of employees
465,000 (2020)


Inter-American Products

various chains







  • Costco is famous for offering great prices on loads of your everyday essentials – gas included!
  • Costco is a great place to fill up your tank. First, though, you might be curious if Costco gasoline is really worth it.

    These are the results of my research.

    Costco sells high quality gas at a low price. What is the reason for such low gas prices at Costco?

    Everything you want to know about the costs and potential drawbacks of various options is right here.

    How come Costco Gas Prices are So Low?

    Costco is able to keep gas prices at such a low price because they charge a membership fee. Costco Kirkland Signature gas cannot be bought by anyone other than Costco members.

    A personal member costs $60 to $120 each year depending on the benefits available.

    Costco accounts for 75% to 75% in profits from its membership. Costco is able to keep grocery prices as low as possible by keeping the price of gasoline and groceries at a reasonable level.

    If you do not fill up your Costco car regularly, the membership will be ineffective.

    Apparently, to make up the cost of the membership, you would have to refuel at Costco around 35 or more times a year, assuming you only use your Costco membership to access fuel.

  • Costco Gas Vs Shell, Mobil, Texaco, Chevron, & Exxon
  • Some Reddit posts claim that Costco gas has the exact same quality as other gas companies like Shell, Mobil and Texaco.

    Additionally, some Reddit users believe Costco buys their gas from these very refineries and renames it under their own Kirkland brand.

    The only real difference between Costco gas and, say, Shell is that Costco adds fuel additives on site (to save money), as opposed to the refinery fuel rack.

    Costco gas has the same additive requirements that Mobil, Texaco or Shell.

    Is Costco Gas Good In 2022? (Top Tier, Who Makes It + More)

    Costco Gas Has Ethanol

    Online reports indicate that Costco 91 unleaded gasoline does not contain ethanol because it is considered a Top Tier gasoline.

    Costco’s Kirkland Signature gasoline contains 10% of ethanol as per The Energy Independence.

    Costco Gas also offers the option to add fuel at all pump locations.

    Is Costco Gas Bad For Your Car?

  • Costco gasoline will never cause you to lose your car.
  • Kirkland Signature gasoline also contains high amounts detergent additives. They help increase both the quality and cleanliness your engine.

    The gasoline can therefore be classified as Top Tier.

    Also, Costco’s brand-name gas exceeds US Environmental Protection Agency’s minimum additive requirements.

    AAA examined the distinction between Top Tier and Gas that meets the minimum government requirements.

    The researchers also discovered that Top Tier fuel produced 19 times more intake valve deposits than engines running on regular gasoline.

    Is Costco Gas Good In 2022? (Top Tier, Who Makes It + More)

    Is Costco’s Regular Gas As Good As Premium Gas?

    Costco has both premium Kirkland Signature gasoline and regular Kirkland Signature gasoline so that you can fill up your car with excellent fuel.

    All the fuel sold at Costco gas stations has higher than average quantities of detergent additives.

    Thus, Costco regular gas and its premium gasoline meet Top Tier standards.

    The main difference between premium Kirkland Signature gasoline and regular Kirkland Signaturegas is its octane content.

    Make sure you only refuel at the specified octane level in your owner’s manual.

    What Other Gas Stations Offer “Top Tier” Gas?

    Aside from Costco, there are plenty of other gas stations in the US that sell fuel that meets Top Tier standards.

    This describes fuel which is at a higher level than US government requirements.

    The Top Tier Gas website provides a more detailed explanation of these strict requirements.

    As of January 2020, Top Tier Fuel is sold at some gas stations by several retail brands:

  • 76
  • ARCO
  • BP
  • Chevron
  • Esso
  • Mobil
  • Shell
  • Texaco
  • Wow
  • Some convenience stores might also sell Top Tier license fuel. So, in addition to Costco, you can purchase certified high-quality fuel from lots of different locations.

    However, the chances are that Costco’s prices will be significantly lower per gallon.

    Is Costco Gas Good In 2022? (Top Tier, Who Makes It + More)

    Is Costco Gas Popular?

    Costco gasoline has a lot of popularity. Costco Kirkland Signature fuel is high quality. It is also very affordable.

    But, it is also its biggest disadvantage.

  • You will more than likely have to wait in line to refill your car with Costco fuel and for quite a long time. Costco gas station lines can be quite long. Even an hour could be enough to delay you!
  • You could also have someone drive you to Costco so you can do your shopping while you wait.

  • Costco’s Gas: If you want to try it, make sure you check out my Costco Cash Card post. It will tell if Costco takes credit cards as well as the Costco opening hours.
  • Conclusion
  • Kirkland Signature gasoline is high-quality and great value at Costco gas stations.

    The high quantities of detergent additives in both Costco’s premium and regular gas means it meets strict Top Tier performance standards.

    It also manages to cost several cents per gallon less than most of its closest competitors.

    Costco gas can only be filled up with the downsides: long queues at stations, and an annual fee to join.

    The benefits outweigh any drawbacks.

    .Is Costco Gas Good In 2022? (Top Tier, Who Makes It + More)

    See also  Costco Employee Discount
    Dear Adam Smith is a data-driven assistance tool for online research. There’s so much information out there, including social networks, blogs, forums, comments, and articles to name a few. Thousands of new reviews are published every day. It’s…

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