Is Costco Premium Gas Good? (All You Need to Know)

Costco is known for offering low prices on products, including gas, which allows its members to save money.

However, apart from regular gas, Costco members can also buy premium gas from the Costco station. But is this premium gas good? Here’s all you need to know!

Is Costco Premium Gas Good in 2022?

Costco premium gas is great quality fuel for your car in 2022. It meets Top Tier standards, enabling it to clean your engine and help it run more efficiently. Costco’s premium gas also has different octane levels compared to regular gas. However, car owners should only use premium gas only if it’s specified in the owner’s manual.

Read on for more information about Costco’s premium gas, how much it costs, and whether it’s good quality, along with other related facts!

What Is the Cost of Costco Premium Gas?

In general, Costco gas has been reported to be cheaper than other gas stations. According to a report, it costs 21 cents less per gallon than the competitors.

Therefore, the premium gas from Costco is also lower.

Costco’s premium gas prices fluctuate depending on internal and external factors beyond the company. However, despite the fluctuations, Costco has managed to lower its costs.

If you buy gas at Costco, you’re more likely to save money compared to other gas companies and stations.

When you need to fuel, some Costco locations display the gas price at the warehouse store entrance or the food court.

Why Is Costco Premium Gas Cheap?

Premium gas is cheaper at Costco because of its membership structure (i.e customers have to sign up for a membership to purchase the gas).

With membership fees costing between $60 and $120 annually, Costco can get money from the customers to pay for most operations, allowing the company to keep the prices of gas low.

Is Costco Premium Gas as Good as Others?

According to Costco customers, Costco’s gas quality is similar to other gas companies, including Shell, Arco, Exxon, and Mobil.

In addition, Costco premium gas meets all the government additive requirements like its competitors.

What Octane Is Costco Premium Gas?

What Octane Is Costco Premium Gas?q

Costco’s Kirkland Signature sells regular and premium gasoline.

While both of them meet Top Tier standards, the difference between the two is the octane levels. While regular gas has 87 octanes, premium gas has 91 octanes.

According to Costco, you should use the octane rating specified in your vehicle’s owner’s manual.

This is important because the amount of octane determines how the fuel burns in the engine and having too little octane can negatively affect the engine.

Therefore, car owners should only use premium gas if that’s the recommended option in the manual.

Do You Need to Be a Member to Buy Costco Premium Gas?

Costco only sells gas to Costco members, therefore, you need to pay the annual fee to enjoy this service.

However, there’s an exception- if you are a Costco Shop Card customer, you don’t have to be a member so that you can fuel at Costco stations.

However, You can enjoy your membership benefits if you regularly fuel at Costco gas stations.

In fact, reports show that you’ll cover the cost of your membership if you fuel at Costco gas about 37.5 times.

Is Costco Premium Gas Good for Your Car?

Costco says it provides quality and value on all its products, including premium gas. The fuel exceeds regulatory and industry standards; therefore, it’s ideal for your car.

In addition, premium gas is classified as Top Tier because it contains high levels of detergent additives that boost the cleanliness of the engine and quality of gas.

Also, while Costco premium gas might be the cheapest option, it’s still high quality.

Is Costco Premium Gas Good for BMWs?

According to some BMW owners, Costco Kirkland Signature premium gas is good for these cars.

Indeed, it works well and meets all Top Tier requirements that these cars need. Also, apart from being affordable, the gas is high quality.

Is Costco Premium Gas Good for Mercedes’?

Compared to gasoline from other companies, Costco premium gas seems to have the minimum amount of detergents; therefore, it can be used in a Mercedes.

However, before adding premium gas to your Mercedes, confirm that it’s recommended in the owners’ manual.

Is Costco Premium Gas Good for Porsches?

Car owners on Quora have different opinions on whether Costco gas is good enough for premium cars.

While some say that Costco premium is Top Tier, so it’s ideal, others have had a bad experience.

On another car forum, Costco premium gas is considered suitable for Porsche. Apart from being good quality, it’s also affordable.

Does Costco Premium Gas Contain Ethanol?

According to Costco, the gas contains ethanol as required by the federal Energy Independence and Security Act of 2007.

Costco abides by the law and includes the ethanol content label at the pump, making it easy for customers to find this information.

To learn more, you can also read our posts on whether or not Costco gas takes credit cards, is Costco gas good, and Costco gas hours.

Conclusion

Costco premium gas is great quality fuel for your car. It meets Top Tier standards, enabling it to clean your engine and help it run more efficiently. Costco’s premium gas also has different octane levels compared to regular gas.

However, car owners should only use premium gas only if it’s specified in the owner’s manual. If you get fuel with lower octane levels than recommended, you’ll have issues with your engine. Nevertheless, Costco’s gas is generally well-suited for most vehicle models.

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Mackenzie Jerks

Mackenzie is a freelance writer and editor, published author, and music enthusiast who holds a Bachelor of Science in Business Administration. When she’s not writing, Mackenzie is either wrapped up in a book, discovering new music, or introducing herself to a new fitness regimen.

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