N
The Daily Insight

Is Costco gas Top Tier gasoline?

Author

Rachel Hernandez

Updated on March 19, 2026

Costco is listed as a TOP TIERâ„¢ gasoline retailer. Find out more at Kirkland Signatureâ„¢ Gasoline contains five times the EPA detergent requirement in both regular unleaded and premium grades, and is formulated to clean your engine and help your vehicle run like new.

Herein, is Costco gas as good as Shell?

Costco gasoline is practically equal to any other major brand gasoline. You should not notice any difference when filling up your vehicle at Costco as you would with any other brand. The only difference you should notice is a much lighter hit to the wallet.

Subsequently, question is, what fuel does Costco use? Yes. All Costco fuel stations have dispensers for high flow diesel and ultra high flow specially installed for trucks. Where does Costco source its fuel from? Currently, Costco sources its quality fuel from Mobil which is specified to meet Australian Standards.

People also ask, what gas stations have top tier gasoline?

Here Are the Top Tier Licensed Retail Brands in the United States:

  • Simonson Station Stores.
  • Sinclair.
  • Texaco.
  • Tobacco Outlet Plus Grocery.
  • Valero.
  • Value America.
  • WOW.
  • Win Win.

What octane is Costco gas?

octane can vary by state, but at Costco, it's typically 87 octane for Regular and 91 octane for Premium Gasoline.

Related Question Answers

Is Costco Gas bad quality?

Costco's gas may often be the cheapest in town, but it's still high-quality. Kirkland Signature fuel meets Top Tier standards, which means it has deposit control additives to clean your engine and help it run more efficiently. Costco isn't the only Top Tier gasoline retailer around.

Why is gas so cheap at Costco?

How does Costco keep its gas price so low? The answer is simple: they just have very loyal customers. To purchase their gas, you have to be a member, and membership sales make up about 75 percent of the chain's profit.

Who makes the best gasoline?

Prominent top-tier gasoline suppliers
  • BP.
  • Chevron.
  • Conoco.
  • Costco.
  • Exxon.
  • Holiday.
  • Kwik Trip.
  • Mobil.

Why is Shell gas so expensive?

Since most end product stations have equal research, they can produce similar additives. The most likely scenarios for Shell gasoline to be more expensive is that their additive is more expensive to add, or that other stations are using the base gasoline from the local distributor refinery.

Which gas lasts the longest?

93 octane fuels are more refined and contain more stable hydrocarbons. These stable hydrocarbons can last 2-3 times longer than 87 octane fuel. Even in proper storage 87 octane gas can start to degrade in 3 months, 93 octane fuel should last closer to 9 months before degradation is noticeable.

Is Costco gas bad for BMW?

We use Costco gas in all our BMW and other cars. I even use it in my Bmw m8 v8 with twin turbos. It's perfect and works well.

Does Sam's Club have top tier gasoline?

Know gas sold at Sam's Club isn't top tier. You should know before buying gas from Sam's Club that the gas isn't top tier. Unlike Costco, gas you're buying at Sam's Club isn't top tier.

Who has the best top tier gas?

Chevron. Of America's largest nationwide chains, Chevron scores the highest points in overall customer satisfaction. Its reach spans over 7,800 stores, and while some gas stations offer convenient food marts, one location in North Hollywood goes above and beyond gasoline.

Does Walmart sell top tier gasoline?

Short Answer. Walmart gas stations are known to offer low prices for fuel, but Walmart does not sell TOP TIER gas. While there are federal regulations regarding fuel quality and gas station maintenance, Walmart does not disclose its specific gasoline formulation or maintenance procedures.

Is all Shell gas top tier?

Shell Regular and Plus gasolines, which meet the Top Tier standard, also contain more than two times the amount of cleaning agents required by the EPA.

Is Shell the best gasoline?

Shell Gasoline is scientifically proven to help improve your mileage. Shell Gasoline is also certified TOP TIERâ„¢, a higher standard for engine cleanliness and performance set by auto manufacturers.

Is Speedway gas a top tier gasoline?

Speedway is a licensee of Top Tier gasoline, and all retail locations must meet those quality standards. The company uses Gilbarco, Dresser Wayne and other fueling systems. A key hallmark of the Speedway brand is its Speedy Rewards loyalty program.

Which gas is better Shell or Exxon?

Exxon dominated Shell in every category from satisfaction rating to sentiment analysis. More than 70% of Exxon's customer reviews were four or five stars, compared to just 50% of Shell's. For sentiment analysis, Exxon dominated again.

Do some gas stations have better quality gas than others?

There's no such thing as “better gas.” Companies like Chevron try to tell you their gasoline is superior because it has Techron in it. However, all gas has detergents that prevent clogging in the fuel injector, and no brand of gas is better quality than any other for your vehicle.

What brand of gas does 7/11 sell?

7-Eleven Inc. is dropping Venezuelan-backed Citgo as its gasoline supplier after more than 20 years as part of a previously announced plan by the convenience store operator to launch its own brand of fuel.

Can you pay for gas with cash at Costco?

Costco gas stations don't take cash — and accept only Visa credit cards. You can't use cash to buy gas at Costco — that is, unless you go through the added burdensome step of going into a Costco warehouse and using the cash to buy a Costco cash card. You also can't use any credit card save for one in the Visa network.

Is Costco gas the same as Chevron?

The only difference in gas is how much cleaning agents they put in it. Gas like Chevron and Shell are so expensive because they add more cleaning agents, as Techron. Costco add same amount or more then expensive brands like Chevron. While Chevron has there gas shipped with all the additives.

Does Costco take Apple pay for gas?

Costco gas stations do not accept Apple Pay as a payment method. The machines are not equipped with this technology yet. For now, you can pay for Costco gas via all Visa cards, the Costco Anywhere Visa by Citi, Most PIN-based debit cards, or your Costco shop card. Costco gas prefers Visa credit and debit cards.

Can you get Costco pizza without membership?

A Costco membership is required to get in the door and into the food court at many Costco locations. Yet in warmer climates where the food court is outside the store, food can be bought without a membership. Costco is known for serving pizza, hot dogs, and other treats for less than $5.

How much is Costco's regular gas?

In general, Costco's regular gas costs about $2.35 per gallon compared to the average price of other cheap gas stations that don't go below $2.53.

Does Costco fuel have ethanol?

Does Costco Gas Have Ethanol? No, Costco 91 unleaded gas does not have ethanol as it is a “Top Tier” gasoline. However, Costco's Kirkland Signature brand gasoline does contain 10% ethanol in requirement with The Energy Independence. Additionally, when filling up at Costco Gas, all pumps will have the mix of fuel added.

How much is the annual fee for Costco?

$60.00 Annual membership fee* Includes a free Household Card. Valid at all Costco locations worldwide.

Which gas has no ethanol in Canada?

What Gasoline has no ethanol in Canada? Meaning Shell V-Power is probably the only gasoline available without ethanol.

Do Costco gas stations have air pumps?

Does Costco gas have air pump? Costco gas stations are for members only. When you approach the pump, you must insert your membership card first, followed by a Visa credit card or most PIN debit cards.

What octane is Sam's premium?

Using Premium vs. Regular Gasoline. In a nutshell, buy the gasoline your owner's manual calls for. That means regular for cars using regular, or 87 octane; and premium for cars using premium, meaning 91 or 93 octane.

Is Costco Gas good in Canada?

All gasoline sold in Canada must include a deposit control additive as outlined by the (Canadian General Standards Board). Additives are commonly referred to as detergents. All Costco gas has always contained these additives. Costco gas stations are well maintained and our fuel is 100% guaranteed.

Is 89 a good gas?

Let's start with the easy one. Most cars on the road recommend a standard grade 87 or 89. Premium gas 90-93 is completely okay to put in a standard vehicle. Car experts say there is no risk of damage to a standard car using premium fuel.

What are the different octane levels of gas?

Retail gasoline stations in the United States sell three main grades of gasoline based on the octane level:
  • Regular (the lowest octane fuel–generally 87)
  • Midgrade (the middle range octane fuel–generally 89–90)
  • Premium (the highest octane fuel–generally 91–94)

Is Costco closed on Easter 2020?

Costco Is Closed on Easter & Many Major Holidays

But the store will reopen on Monday, although hours will be different due to the coronavirus outbreak. Costco locations will close at 6:30 p.m. on weekdays, Monday-Friday. Weekend hours will continue to be the same (which includes being closed on Easter.)

Which Costco's have car washes?

Costco Gasoline Car Wash Locations
  • Lancaster. 1141 W Avenue L, Lancaster, CA 93534.
  • Oxnard. 2001 E Ventura Blvd, Oxnard, CA 93036.
  • Poway. 12155 Tech Center Drive, Poway, CA 92064.
  • San Juan Capistrano. 33961 Doheny Park Rd, San Juan Capistrano, CA 92675.
  • Torrance. 2640 Lomita Blvd, Torrance, CA 90505.
  • Victorville.

Does Costco take Mastercard for gas?

Costco warehouses and gas stations only accept Visa credit cards, cash, debit cards, and Costco Shop Cards (gift cards). They do not accept Mastercard, American Express, or Discover cards. These days, non-Visa cards no longer work at Costco, so you'll need a Visa card to pay and earn rewards.

Does Costco have 93 octane?

Unfortunately, my Costco offers only 87- and 93-octane gas. In fact, gasolines often are blended like that right there at the pump.