Who Makes Costco Motor Oil: Is it Better than Mobil 1?

Costco motor oil is one of the best oil in the whole of North America precisely. The brand is used by various car owners who consistently testify of the oil’s performance in their vehicles. However, many people are curious to know the manufacturer’s identity.

Therefore, if you’re wondering, “Who makes Costco motor oil?” Take a few minutes to find out virtually every vital detail about the brand in this article. You will discover the manufacturer’s name, types of Costco synthetic oil, the manufacturing location, etc.

Also, if you intend to use the Costco engine oil, this post will provide you with relevant information that will let you know whether the product is suitable for your car or not.

who makes costco motor oil

Who Makes Costco Motor Oil?

Warren Distribution manufactures Costco Kirkland motor oil. The company is a popular quality oil producer in North America, where its manufacturing factories are based. It was founded in 1922 by James Schlott.

The company is one of the famous blenders of private-label oils. They manufacture the motor oil that Costco stores sell across their outlets worldwide. Warren Distribution also produces oil for other well-known engine oil brands.

Warren Distribution is a well-known family-owned company in North America. Even though James Schlott founded the company, the leadership is now under the supervision of his grandson – Robert “Bob” Schlott, the current CEO and Chairman of the organization.

So, “Who makes kirkland oil?” The company’s history began with James Schlott (the founder of Warren Distribution) and currently falls on the shoulder of his grandson – Robert “Bob” Schlott.

Is Costco Brand Motor Oil Good?

Of course, Costco motor oil is good regarding durability, safety, and several other reasons car owners want a reputable oil brand with good performance. In addition, the motor oil brand possesses Dexos and API certification, which indicates that they are trustworthy and reliable.

Costco offers one of the lowest prices for high-quality motor oil. This is usually different in the automotive industry. Most high-quality products are sold at a commensurately high price.

However, Costco ensures to offer premium quality at an affordable price to their customers across their various outlets worldwide. As a result, the Costco car oil arguably provides a similar performance output to Mobil 1.

Therefore, Costco motor oil can be trusted if you’re looking for a motor oil brand that offers maximum engine parts protection, improved fuel economy, top-notch performance, and extended engine life. In addition, the product has Dexos and API certification. We suggest to cool engine before changing oil.

Where Are Costco Synthetic Oil Made?

Costco synthetic oil is manufactured in the United States of America by Warren Distribution. The manufacturer is situated in North America, where they ship their products to over 45 countries across the globe.

The manufacturer of Costco Kirkland oil specializes in various products, including heavy-duty engine oil, passenger car motor oil, greases, and industrial oils.

From its over 2,000,000 square feet of production and distribution facilities in Texas, West Virginia, Iowa, and Alabama, the company’s output is now about 140 million gallons per year. Meanwhile, their corporate office is located in Omaha, Nebraska.

Types Of Costco Synthetic Oil

There are mainly 3 types of Costco synthetic oils across the company’s network of outlets around the world. Some of the synthetic oils from Costco include the following.

Kirkland Signature 5W-30 Full Synthetic Motor Oil

The Kirkland Signature 5W-30 Full Synthetic Motor Oil 5-quart is designed to minimize wear on critical engine parts and deliver top-notch fuel economy.

The oil brand’s 100% synthetic formulation provides maximum engine protection and helps to boost performance. You can use 5W-30 Costco motor oil in flex-fuel, gasoline-only, or gasoline-electric hybrid vehicles.

costco kirkland oil

Kirkland Signature 5W-20 Full Synthetic Motor Oil

Kirkland Signature 5W-20 Full Synthetic Motor Oil 5-quart is another top-notch full synthetic oil from Costco.

The oil is manufactured to deliver advanced wear protection for engine parts, prevent deposits and sludge formation, and provide extended engine life. The fully synthetic oil can be used in ex-fuel, gasoline only, or gasoline-electric hybrid vehicles.

Kirkland Signature 0W-20 Full Synthetic Motor Oil

Kirkland Signature 0W-20 Full Synthetic Motor Oil is an ideal oil brand for turbocharged direct injection gasoline-only engines. However, its application cuts across use in gasoline only, ex-fuel, and gasoline-electric hybrid vehicles.

The fully synthetic oil delivers maximum engine protection and performance boost, improved fuel economy, less expansion and extended engine life. It is precisely the ideal full synthetic oil for your vehicle.

Most Used Costco Motor Oil

Among the 3 viscosity grades of Costco motor oil brands(SAE 0W-20, 5W-20, and 5W-30), the Kirkland Signature 0W-20 Full Synthetic Motor Oil is the most popular and commonly used Costco motor oil in automobiles.

The full synthetic oil is mostly used by vehicle owners, with an overall 4.8 star of approximately 2,188 reviews. The customers’ reviews are further broken down into; 1,922 5-star, 176 4-star, 40 3-star, 16 2-star, and 31 1-star reviews.

Meanwhile, since customers have generally given many positive reviews about the other types of Costco motor oil, the SAE 0W-20 ranks top on the list of positive reviews by customers across the company’s network of outlets around the world.

Kirkland vs Mobil 1

When comparing Costco’s motor oil to Mobil 1, it’s essential to consider several factors such as quality, performance, specifications, and value for money. Both brands are well-regarded in the automotive industry but cater to slightly different market segments and preferences.

Mobil 1 is a premium synthetic motor oil brand widely recognized for its high performance and protection. It’s engineered to reduce engine wear, provide excellent temperature performance (both in high and low temperatures), and enhance fuel economy. Mobil 1 oils meet or exceed the requirements of many leading industry and car manufacturers’ standards, making them suitable for many vehicles.

On the other hand, Costco’s Kirkland Motor Oil is a more recent entrant into the market but has quickly gained a reputation for offering good quality at a very competitive price. It’s a fully synthetic oil that meets and exceeds the same performance standards as other top brands, including Mobil 1. Kirkland Signature oil is designed to provide excellent wear protection, engine cleanliness, and performance at extreme temperatures.

Quality and Performance

  • Mobil 1 is often considered the gold standard in synthetic motor oil, with extensive testing and endorsements from numerous car manufacturers. It is known for offering exceptional protection over long service intervals, which can help extend engine life.
  • Kirkland motor oil is also highly rated, with tests showing it meets or exceeds nearly all performance metrics. It’s manufactured by Warren Distribution, which is a reputable company in the automotive lubricant space.


Mobil 1 and Kirkland motor oils are available in various viscosities and specifications to match the needs of different engines and climatic conditions. Choosing an oil that meets the specifications recommended by your vehicle’s manufacturer is crucial.

Value for Money

  • Mobil 1 tends to be more expensive than Costco’s Kirkland brand, reflecting its premium positioning and the extensive research and development behind the product.
  • Kirkland offers exceptional value for money, providing high-quality synthetic oil at a lower price point. This makes it an attractive option for budget-conscious consumers who want to maintain quality.

The choice between Costco’s Kirkland Signature motor oil and Mobil 1 should be based on your specific needs, preferences, and budget. If you prioritize premium quality and brand reputation, Mobil 1 is an excellent choice. However, if you are looking for outstanding performance at a more affordable price, Kirkland Signature motor oil is a compelling alternative. Always ensure the oil you choose meets the specifications required by your vehicle manufacturer.


If you were asking, “Who makes Costco motor oil?” Virtually every single detail about the oil product manufacturer has been unveiled in this article. So, now you know that Warren Distribution manufactures motor oil for Costco stores around the world.

However, the manufacturer’s operations are usually in North America. Since 1922, the company has offered top-notch motor oil and other automotive and industrial products.

Undoubtedly, they rank as one of the best producers of engine oil and other related products. If you know anyone asking, “Who makes Costco synthetic oil?” Kindly recommend this article to such a fellow.

Solomon Osuagwu

Osuagwu Solomon is a vetted auto mechanic with over ten years of experience in the garage and five years of experience as a service writer. He prides himself in writing accurate information on professional repair guides, DIY repair guides, buyer’s guides, comparisons, and car reviews. If he’s not in his repair garage, he’s writing automotive blogs to help car owners and fellow mechanics to troubleshoot and proffer solutions to several car problems.

Recent Posts