Who Makes Costco Motor Oil? All You Should Know

Costco motor oil is rightfully one of the best oils in North America. It showed the world it was a game-changer in automotive lubrication. Furthermore, it enhances engine performance, offers wear protection, and prevents thermal breakdown, leaving behind unbeatable value. Many car owners love to use this brand to testify to their vehicle performance.

However, most people are interested in knowing the identity of the manufacturer. So, if you’re also wondering, “Who makes Costco motor oil?” Please stay with us to find the answer and every important detail about this brand.

Who Is Warren Distribution?

Warren Distribution, one of the world’s leading motor oil companies, manufactures Costco motor oil. Warren Distribution always provides high-quality products and services to its customers, and Costco Motor Oil is no exception.

Warren Distribution was founded in 1922 by James Schlott. Notably, it’s headquartered in Nebraska, Omaha, and from this place, it operates its global oil empire. Currently, Warren Distribution has an outstanding distribution volume of 130 million gallons. It’s the most significant volume distributed by any lubricant and oil company in North America. Mag 1 is another brand that Warren Distribution Oil produces.

who makes costco motor oil

Costco Kirkland Synthetic Motor Oil is a North American-based quality oil-producing company produced by Warren Distribution. If you also wonder who makes Kirkland motor oil 15w40, read on. Actually, it is also manufactured by Warren distribution company. Besides, Kirkland 15w30 is another of the best synthetic oils from Warren Distribution, known for resisting thermal breakdown and increasing fuel economy.

The Warren Distribution company is one of the leading blenders of private-label oils. They make motor oil that Costco stores sell throughout their outlets worldwide. Hence, this company also produces oils for other famous motor oil brands.

Warren Distribution is a famous family-owned company in North America. Although James Schlott founded the company, his grandson now oversees leadership. Robert “Bob” Schlott is the current CEO and chairman of the company.

So, “Who Makes Kirkland Synthetic Motor Oil?” The company’s history started with James Schlott, the founder of Warren Distribution. But currently, it rests on the shoulders of his grandson, Robert “Bob” Schlott.

Pros and Cons of Costso Motor Oil:

Well, we have already talked about who makes Costco motor oil. Now, let’s talk about the pros and cons of this Costco motor oil.


  • Keeps the engine healthy;
  • Premium add-on package;
  • Extra fuel economy;
  • Overall performance is good;
  • High mileage benefits
  • Very reliable;
  • API and Dexos certified;
  • Delivers incredible wear protection;
  • Inexpensive compared to other well-known brands and competitors.
  • Protect the engine from corrosion
  • prevents the thermic breakdown and low-speed pre-ignition
  • Enhance the service life


  • It doesn’t offer ultimate protection against temperature problems;
  • Can’t deliver top-class performance with luxury cars;
  • It is less good quality oil than premium synthetic oil.
who makes costco oil

What kind of oil is Kirkland Motor Oil?

Kirkland oils are specially designed to optimize fuel efficiency. This oil also maintains and protects motor engines for a long time. In addition, Kirkland oil is a type of Synthetic Oil produced by a warren distributor.

Ultimately, Kirkland’s signature brand meets viscosity standards to function correctly in cold and hot temperatures. Also, it contains detergent additives, including magnesium, calcium, sodium, and barium, to prevent breakdown and engine wear.

FAQ (Frequently Asked Questions):

Q. Is Kirkland motor oil good?

How good is Kirkland synthetic motor oil? You may want to know. Well, Kirkland Motor Oil is designed by an expert, dedicated team to provide the best experience for customers. Therefore, you can save money on fuel costs if you use this motor oil.

Also, this oil can help to extend the life of your engine. Compared to all other fully synthetic motor oils, this oil provides the best performance at its price. So yes, Kirkland motor oil is excellent regardless of cost or performance. For people who are looking for an oil brand that provides the best performance and is affordable, this brand will be the best.

Q. What oil brands are made by Warren Oil Company?

Warren Distribution Oil is the largest independent lubricant manufacturer and marketer in the United States. They market both conventional and synthetic lubricants domestically and internationally. They made many oil brands like Mobil 1, Supertech, Kirkland, Meg 1, Polar, Accel, Craftsman, Gumout, etc. Likewise, they also manufacture and market private label products for several Fortune 500 companies.

Q. Who makes Costco diesel motor oil?

Warren Distributors Company also produces Costco diesel motor oil. You may not have heard of this company, but you’ve almost certainly seen their products. It’s because they are the world’s most prominent car oil producer. They produce oil products for their Walmart brand range.

Q. Who Makes Mobil 1 Oil?

Mobil 1 is a brand that provides synthetic motor oil and other automotive lubrication products. Initially developed by Mobil Oil Company in 1974, it is now marketed and sold worldwide by ExxonMobil. The brand range now includes a variety of engine oils, chassis greases, oil filters, transmission fluids, and gear lubricants.

Introduced during the energy crisis, Mobil 1 oil delivered exceptional lubricating properties and enhanced fuel efficiency. According to the company, the first Mobil 1 formula decreased gasoline consumption by 5% compared to traditional oil. ExxonMobil started a celebration for the brand on April 13 in Beaumont, Texas. Additionally, it manufactures and distributes Mobil 1 for all of North and South America.

Final Word:

On the other hand, your question was, who makes Costco motor oil? Actually, we made this article on this topic. So, now you know that Warren Distribution makes motor oil for Costco stores worldwide. However, the manufacturers generally do their work in North America. Since 1922, they have supplied motor oil and other products.

Undoubtedly, they are honored as one of the best manufacturers of engine oil and other related products. Finally, we hope you get the proper information from our blog post. Thanks for reading this article attentively.

Now Read: Is Harvest King Oil The Best Motor Oil?


I am Engr. Z Eusuf Lubricant Specialist, Mechanical Engineer & has been working with engine lubricants for a long time and knows what makes them work best. I can help you find the right oil for your needs, and I have tips on how to keep your engine running at its best.