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Making the grade – Kirkland Signature adds value to the gas pump

Kirkland gasoline

As a Costco member, you are probably familiar with the Kirkland Signature™ products available at your Costco warehouse. This brand identifies unique items brought in by Costco buyers that combine superior quality with a great price. Costco has applied this formula to everything from men’s dress shirts to wine, and members have come to trust the commitment behind the goods that carry the Kirkland Signature™ name.

One of the most popular products to carry the Kirkland Signature label is, surprisingly, gasoline. Costco offers an excellent value at more than 400 U.S. gas stations. There’s more to gas than you might think, affecting both your vehicle and pocketbook.

Cleaning Your Engine

Let’s start with car engines. The heat and stress of combustion over time can cause a buildup of harmful deposits inside a vehicle’s engine. The solution is “deposit-control additives,” commonly called detergents, that are mixed in with the gas. These detergent additives are not soap – they are complex organic molecules designed to keep engines clean. Put simply, the best-performing gasoline contains more of these additives.

“Clean intake valves and injectors help keep your car running like new, with fewer emissions and better performance,” explains Tim Hurlocker, Director of Gas Operations at Costco. “Cleaning up existing deposits can also restore mileage lost to dirty engines.”

As you can see by the price signs on competing gas stations, gas is a highly competitive business. Retailers differentiate themselves from the competition by the type and amount of additives they use in their gasoline. Jeff Cole, Costco Vice President, explains how standards have been set for gasoline additives so consumers can know what they’re getting.

First, there’s the U.S. government standard adopted in 1995 by the Environmental Protection Agency (EPA), which requires that all gasoline sold in the country contain a minimum level of detergent additives. Costco gasoline has always contained these additives, says Jeff. In 2004 several major automakers set their own engine-cleanliness standard, based on extensive testing of the cleaning power of detergents on engines. The automakers set the standard to be higher than that of the EPA testing to ensure optimal performance in today’s advanced engines.

The automakers called this new standard Top Tier™. A complete list of the certified fuel retailers, which includes Costco Wholesale, can be found at the website

Jeff explains why this should matter to consumers. “Clean intake valves and fuel injectors assure optimal performance and efficiencies for all engines,” he says. And for Costco members, here’s the important part: “Costco’s Kirkland Signature Gasoline meets and exceeds Top Tier Detergent Gasoline standards, but at the consistently low prices our members expect from Costco. That’s the value proposition that defines Kirkland Signature.”

The Process of Creating Kirkland Signature Gasoline

As Jeff and his team considered creating a Kirkland Signature Gasoline, they had to undertake a complete review of existing products and industry standards. “We want to ensure that both grades of gas we offer our members are the highest quality available,” says Tim.

The first step was to do more research on additives and engine performance. Costco commissioned intake valve deposit testing by nationally accredited labs and reached important conclusions. “Our tests showed that the optimum amount of detergent additive was approximately five times the government minimum,” says Jeff. Further testing showed removal of the majority of intake valve deposits with the consistent use of Costco’s Kirkland Signature Gasoline.

Based on the test results, “We decided that all the gasoline we sell would contain the increased amount of detergent additives. Although we originally called it Clean Power, we determined that Kirkland Signature best describes the high quality of the product.”

As the number of Costco gas stations grew, the challenge was to find an efficient way to mix the gasoline and the additives to meet Costco’s high standards. Tim says Costco decided the best system would be to blend the additives at Costco gas stations during the fuel delivery. This way, he explains, Costco could have complete control over both the process and the quality aspects of the fuel.

Case for clean gasoline

To accomplish this, Costco worked with industry experts to design and implement a unique on-site additive system. “The quality of our attendants, and the pride they take in the reputation of both Costco and its fuel business, convinced us that we could reliably execute such a plan,” says Jeff.

Different from the Rest

Another thing that sets Costco gas stations apart from competitors is the station attendant in the yellow vest. “We provide trained staff at each station who offer service to members needing assistance and ensure the safety of our members themselves,” says Jeff.

At Costco University, gas station employees are trained on emergency procedures, customer service and pump operations. They assist with spill cleanup, maintain tanks and filters, assist in safe fuel tanker deliveries and generally make sure everything runs smoothly so members can get in and out quickly. “Our highly qualified attendants manage the additives at each of our stations during each and every fuel delivery,” says Tim.

While Kirkland Signature is the cornerstone of Costco’s excellent quality fuel, there is another aspect of fuel quality that does not garner the same attention but is actually of equal importance, Tim adds. That element is good station maintenance. “Our attendants understand the sophisticated environmental monitoring systems built into every Costco station, keeping us in good stead with local, state and federal regulators and keeping the gas station true to the first element of our company mission statement: Obey the law,” he says.

This entails taking frequent tank samples, and, most importantly, regularly timing the nozzle-flow rates. A fast fuel flow gets members in and out quicker, but it also shows that the fuel filters are fresh, Tim explains. A slow nozzle flow rate means the pump filter is becoming clogged and may not be as effective. (The maximum retail gas flow allowed by law is ten gallons per minute.)

“We understand that quick fill-ups are important to members,” says Tim, “so we designed other features to make the fueling process more efficient. Our long hoses allow filling from both sides of the vehicle, and one-way traffic means there is no jockeying for position from both directions at the pump.”

Also, no cash is taken (just Visa, debit and Costco Shop Cards), which makes getting through the payment process as fast as possible. All of these steps help ensure that members can fill up and get going quickly.

Members trust Costco to deliver the best quality in everything they offer, and Costco is proud to provide top-quality Kirkland Signature Gasoline for a great value. Just think of it as the benefit you can’t see but you know is there, always cleaning your engine to keep your car running at peak performance.

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This article is reprinted with permission and originally appeared in the April 2014 edition of The Costco Connection.