Is Costco Gas Good? (2022 Buyer's Guide)

Is Costco gas good? Costco is one of the world's largest retailers, with locations in countries across the globe. The company offers a wide variety of merchandise, from groceries to electronics, and is known for its low prices and bulk discounts. Costco also has a reputation for excellent customer service, and its employees are often lauded for their helpfulness and friendliness.

If you're looking for a great place to shop for all your needs, Costco is definitely worth checking out. You'll find that the prices are very reasonable, and the selection of merchandise is impressive. And, if you need any help while shopping, the staff at Costco will be more than happy to assist you.

is costco gas good

Is Costco Gas Good?

Costco gas is excellent quality and Top Tier standard gasoline. It meets or surpasses the additive requirements of the US government and costs less per gallon than its average competitors. Costco sells gas at a discount to members, making it an attractive option for drivers.

In addition, Costco offers a price protection program for members who purchase gas at their warehouses. If the price of gas goes down within 30 days of purchase, members will receive a refund for the difference. This makes Costco an especially good choice for drivers who are looking to save money on gas.

Cost of Costco Gas

Costco is able to keep its gas prices lower than other gas stations, regardless of how they fluctuate. According to a 2018 report, Costco's gas costs an average of around 21 cents less per gallon than its competitors. Other platforms have reported that the price difference is closer to around 10 or 15 cents. Either way, the price per fill-up adds up and can amount to some impressive savings.

Costco offers its customers a variety of ways to save money on gas, including being a member of the Costco Auto Program. This program offers exclusive discounts and rewards on gas, tires, and maintenance services at participating dealerships. In addition, Costco also offers a rewards credit card that gives cardholders additional savings on fuel purchases at Costco and other eligible gas stations.

The reason why Costco is cheap?

Many people wonder why Costco gas prices are often lower than those at other gas stations. There are a few reasons for this. First of all, Costco charges its customers a membership fee. Only people who are members of Costco can buy the Kirkland Signature gas that the store offers. The membership fees range from $60 to $120 per year, depending on the benefits that the customer wants access to.

This money accounts for around 75% of Costco's profits, which allows the chain to keep prices low on everything from gasoline to groceries. However, unless a person fills their car up at Costco regularly, they are unlikely to make the price of the membership worthwhile. In addition, Costco often buys gas in bulk, which helps to lower the price per gallon. Finally, Costco gas prices are also lowered by competition. There are often other gas stations located nearby that match or beat Costco's prices in order to attract customers.

is costco gas good

Costco Gas Vs Shell, Mobil, Texaco, Chevron, & Exxon

In terms of quality, there is little difference between Costco gas and other major brands like Shell, Mobil, Texaco, Chevron, and Exxon. According to some Reddit users, Costco gas is actually sourced from the same refineries as these other brands. The only significant difference is that Costco adds fuel additives on site (to save money), as opposed to the refinery fuel rack. However, this does not affect the quality of the gas itself.

Additionally, all major brands must meet the same US government additive requirements. Therefore, in terms of quality, there is no clear advantage to choosing one brand over another. Ultimately, the decision of which gas station to patronize comes down to personal preference.

Does Costco Gas have Ethanol?

Costco also has its own gas stations. Many drivers are curious about what kind of gas is offered at Costco and whether or not it contains ethanol. According to online reports, Costco's 91 unleaded gas does not have ethanol. This is because Costco gas is classified as a "Top Tier" gasoline. Top Tier gasoline is held to a higher standard than other gasoline and must meet certain guidelines in order to be certified.

However, Costco's Kirkland Signature brand gasoline does contain 10% ethanol as required by The Energy Independence and Security Act of 2007. This act requires that all gas sold in the United States contain a minimum of 10% renewable fuel. When filling up at Costco Gas, all pumps will have the mix of fuel added so that drivers can be aware of what they are putting into their vehicles. Whether or not to use gas with ethanol is a personal decision, but it is important to be informed about what is being pumped into your car.

Costco Gas bad for you car? Is it true?

There is a popular misconception that gas from Costco is bad for your car. However, this is not the case! In fact, Kirkland Signature gasoline contains high quantities of detergent additives, which help to improve the quality of the gas in your car as well as the cleanliness of the engine. This means it can be classed as Top Tier gasoline.

Or, in other words, Costco’s own-brand gas surpasses the minimum additive requirements set by the US government’s Environmental Protection Agency. AAA studied the difference between so-called Top Tier gas and gas that merely met the government’s minimum requirements. They found that engines running on Top Tier gas were 37% cleaner than engines running on regular gas after just 4,000 miles. Additionally, they found that engines running on Top Tier gas needed less maintenance and had fewer repairs over time.

Is Costco's Regular Gas the Same as Premium Gas?

When you buy gasoline from Costco, you can be sure you're getting a high-quality product regardless of whether you choose regular or premium fuel. All the gas sold at Costco gas stations contains higher-than-average levels of detergent additives, which helps to keep your engine clean and running smoothly. In addition, all of Costco's gasoline meets Top Tier standards, so you can be confident that you're filling up with a quality product.

The only difference between regular and premium Kirkland Signature gas is the octane level; premium gas has a higher octane rating than regular gas, which means it can withstand higher temperatures before igniting. As a result, premium gas is often recommended for high-performance vehicles or vehicles that frequently tow heavy loads. However, unless your car's owner's manual specifically recommends the use of premium gas, regular gas will likely suffice.

Is it true Costco Gas is popular?

Costco gasoline is popular for a variety of reasons, most notably its quality and affordability. However, its popularity can also be its downfall, as the long lines at Costco gas stations are well-known. While waiting in line, many take advantage of the opportunity to do some shopping inside the Costco warehouse.


Costco is best known for its bulk discounts and high-quality products. And, its gasoline is no exception. The Kirkland Signature gas sold at Costco gas stations is both high quality and great value for money. The high quantities of detergent additives in both Costco’s premium and regular gas means it meets strict Top Tier performance standards.

And, it still manages to be several cents cheaper per gallon than many of its closest competitors. The only downsides to filling up your car with Costco gas are the long lines at the gas stations and the annual membership fee you have to pay to use it. However, the benefits far outweigh the drawbacks.

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author: patrick algrim
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Patrick Algrim is a Certified Professional Resume Writer (CPRW), NCDA Certified Career Counselor (CCC), and general career expert. Patrick has completed the NACE Coaching Certification Program (CCP). And has been published as a career expert on Forbes, Glassdoor, American Express, Reader's Digest, LiveCareer, Zety, Yahoo,, SparkHire,,, FairyGodBoss,, St. Edwards University, NC State University,, Thrive Global,, Work It Daily, Workology, Career Guide, MyPerfectResume, College Career Life, The HR Digest, WorkWise, Career Cast, Elite Staffing, Women in HR, All About Careers, Upstart HR, The Street, Monster, The Ladders, Introvert Whisperer, and many more. Find him on LinkedIn.

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