Does Costco Have Diesel Gas? (Yes, Kirkland Signature Diesel)

Costco is a membership warehouse club that offers members the best prices on brand-name merchandise. With hundreds of locations worldwide, it’s easy to find what you’re looking for.

The concept of Price Club was originally conceived to serve non-business customers.

The Seattle-based warehouse club giant opened its first store in 1983. Six years later, it became the first company to reach $3 billion in annual sales.

Does Costco Have Diesel Gas in 2024?

Costco has diesel gas at its gas stations. In addition to gasoline in both regular unleaded and premium grades, Costco also sells diesel gas at their fuel stations. Costco’s Kirkland signature diesel is formulated with additives that help improve engine performance and efficiency.

Almost always, gas prices at Costco gas stations are cheaper than what you would find at other gas stations.

Depending on where you live, you can expect the prices of gasoline and diesel at Costco gas stations to be about 20 cents to 30 cents per gallon cheaper than that at other gas stations.

Is Costco’s Diesel Gas Good?

Costco’s Kirkland Signature Diesel Gas has very good quality and great price. The diesel gas sold at Costco gas stations is certified to meet TOP TIER performance standards for diesel fuel.

It is a cleaner diesel fuel that offers a whole host of benefits for your vehicle:

  1. Improves vehicle reliability & performance: It contains deposit control additives help restore lost power and performance by cleaning deposits from injectors and filters
  2. Helps restore lost fuel economy: It cleans deposits from fuel injectors, enabling fuel injectors to provide precise fuel flow and an optimal spray pattern that creates efficient fuel combustion
  3. Enhances cold engine startability: It contains additives that help improve combustion for easy start-up and smooth operation
  4. Reduces emissions: By removing deposits, it allows the engine’s sophisticated emissions control systems to work as designed, helping to reduce emissions caused by engine deposits
  5. Prevents harmful fuel system wear: It contains additives that help protect critical fuel system components from friction and wear

Does All Costco Locations Have Diesel Gas?

Diesel gas is available at most but not all Costco fuel stations. A list of all the Costco locations that offer diesel fuel can be found here.

Do You Need Costco Membership to Get Diesel Gas at Costco?

You do need a Costco membership to get gasoline at Costco fuel stations. Have your Costco membership card ready. Like most other Costco offerings, Costco fuel stations are for members only.

When you drive up to a gas pump, you must insert your Costco membership card first, followed by a Visa credit card or a PIN debit card. The only exception is if you are paying with a Costco Shop Card – in that case, you do not need to be a Costco member.

How Can I Pay for Diesel Gas at Costco?

Costco gas stations only accept Visa credit cards, most PIN-based debit or ATM cards, or Costco Shop Cards. That means you will not be able to pay by cash, Mastercard credit cards, or American Express cards.

So make sure you have the appropriate payment cards with you before you go to fuel up at a Costco fuel station.

Can I Get Cash Back from Costco Diesel Gas?

If you pay for your diesel gas at Costco using a Costco Anywhere Visa by Citi credit card, you will get 4% cash back for the first $7,000 in gas purchases per year, after that it will drop to 1% cash back.

How Do I Avoid Long Lines Getting Diesel Gas at Costco?

Most of the time there will be long lines of vehicles waiting to buy gas at Costco fuel stations. You can avoid the long lines by going there at off peak hours, such as very early in the morning like 6 am or early afternoon like 3 pm during weekdays.

Do not worry about which side your gas tank is on. Costco fuel stations have one way traffic flow and offer extra-long pump hoses that allow you to fill up your tank from either side.

Does Costco’s Kirkland Signature Diesel Contain Biodiesel?

Kirkland Signature Diesel is an ultra-low sulfur fuel that meets federal regulations. It has a sulfur content of fewer than 15 parts per million.

Kirkland Signature Diesel is not required to contain biodiesel in certain areas, such as California. However, up to 5% ethanol may be found in some areas.

Does Costco Offer Renewable Diesel?

Costco is able to provide renewable diesel at some of our California gas stations. They are currently offering up to 99% renewable diesel. When the demand increases, they will also offer more biomass-based diesel.