Who Makes Harvest King Oil? How Good Are They?

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Editorial Team

Harvest King Oil, a popular choice among vehicle owners, is manufactured by Warren Oil, the largest independent lubricant manufacturer and marketer in the United States. With a reputation for excellence, Warren Oil produces and markets various lubricants, including the trusted Harvest King Oil brand.

Having been around for a few years, Harvest King Oil has become known for its quality and performance. It offers a 4.73L full synthetic motor oil that is specifically recommended for passenger cars, sport utility vehicles, and light trucks. The synthetic oil is available in different grades, such as 0W20, 10W30, 5W20, or 5W30, catering to the specific needs of different vehicles.

One notable aspect of Harvest King Oil is its competitive pricing. With a price point of $19.99 for the specified quantity, it presents an attractive option for vehicle owners looking for high-quality oil at a reasonable price.

Key Takeaways:

  • Harvest King Oil is manufactured by Warren Oil, the largest independent lubricant manufacturer and marketer in the United States.
  • Warren Oil has a strong reputation for producing high-quality lubricants.
  • Harvest King Oil has been available in the market for a few years and has gained popularity among vehicle owners.
  • It offers a 4.73L full synthetic motor oil recommended for passenger cars, sport utility vehicles, and light trucks.
  • Harvest King Oil is known for its competitive pricing, providing excellent value for money.

Now that we know who manufactures Harvest King Oil, let’s delve deeper into the history of this trusted brand.

The History of Harvest King Oil

Harvest King Oil has a rich history that dates back to at least 1973. It has established itself as a trusted brand in the automotive lubricant industry over the years. The brand’s origin can be traced to Warren Oil, a renowned company based in the United States known for its high-quality products.

Since its establishment, Harvest King Oil has garnered a loyal following due to its commitment to providing affordable yet reliable lubricants. The brand’s range of oils is available in various viscosities, including 0W20, 10W30, 5W20, and 5W30, catering to different vehicle requirements.

Harvest King Oil is recommended for use in passenger cars, sport utility vehicles (SUVs), and light trucks, making it a versatile choice for a wide range of vehicles. The brand holds approvals for API SN/GF-5 or GM Dexos1®, ensuring that it complies with the highest industry standards.

One of the notable features of Harvest King Oil is its positive customer reviews. On Rural King’s website, customers have expressed their satisfaction with the performance and reliability of Harvest King Oil in their vehicles. The brand has gained a reputation for providing excellent protection and lubrication.

With such a long-standing history and a positive track record, Harvest King Oil continues to be a popular choice among vehicle owners. Its affordable pricing, coupled with its high-quality performance, makes it a compelling option in the market.

Harvest King Oil Competitor Brands
$10.99 for 5 quarts Mobil and Castrol oils priced between $26 – $35 for 5 quarts
Positive customer reviews Offer of Mobil1 full synthetic oil at $29.99 for a 5-quart jug with rebates and promotions mentioned
Testimonials from satisfied users

Table: Pricing and Comparison with Competitor Brands

When comparing prices, Harvest King Oil stands out for its affordability. While competitor brands such as Mobil and Castrol price their oils between $26 and $35 for 5 quarts, Harvest King Oil is available at just $10.99 for the same quantity, offering significant savings without compromising on quality.

Furthermore, Harvest King Oil’s positive customer reviews highlight its reliability and performance. Users have shared testimonials about their positive experiences with the brand, demonstrating its effectiveness in various vehicles.

The Quality of Harvest King Oil

When it comes to motor oil, quality is of utmost importance. And for over four decades, Harvest King Oil has been delivering exceptional quality to its customers. This reliable brand, in the lubricant industry since at least 1973, has gained recognition for its performance and reliability.

Users across different regions have shared their experiences with Harvest King Oil, highlighting its impressive qualities. A user from Eastern Oregon emphasized that not all oils are equal, indicating that Harvest King Oil stands out from the competition.

In contrast to some negative feedback, it’s worth mentioning that the majority of users have reported no oil-related issues with their vehicles after using Harvest King Oil. Engine oil changes carried out every 250 hours in NW Ohio have resulted in a clean engine and without any reported oil-related problems in 15 years. This speaks volumes about the reliability of Harvest King Oil.

Harvest King Oil’s commitment to quality is further demonstrated by its American Petroleum Institute (API) certification. This certification is prominently displayed on Harvest King Oil labels, instilling confidence in the product. Users have praised the importance of quality additives in oil, suggesting that cheaper options may lack durable additives found in higher-priced oils, further highlighting the value of Harvest King Oil.

Harvest King Oil is manufactured by Warren Oil in the US, ensuring that it meets stringent industry standards. With a complete line of API SP ILSAC GF-6A oils, Harvest King Oil offers a range of options suitable for passenger cars, sport utility vehicles, and light trucks.

Whether you’re looking for a reliable motor oil to enhance performance, ensure cleanliness, or improve engine longevity, Harvest King Oil consistently delivers. Countless testimonials speak to the positive impact of Harvest King Oil, with users reporting extended oil change intervals and impressive engine performance even after hundreds of thousands of miles.

Harvest King Oil Certification and Compliance

Harvest King Oil prides itself on its commitment to excellence, as demonstrated by its certifications and compliance with industry standards. The oil carries the prestigious American Petroleum Institute (API) certification, ensuring that it meets the specific standards set by the API. This certification guarantees that Harvest King Oil has undergone rigorous testing and meets the requirements for viscosity, engine protection, and fuel efficiency.

Moreover, Harvest King Oil strives to exceed not only API standards but also the expectations set by vehicle manufacturers. For instance, the company ensures that its oil aligns with the oil regulations set by acclaimed brands like Toyota, further emphasizing its dedication to quality and compatibility.

With a diverse range of products, Harvest King Oil offers a comprehensive selection that caters to various needs. The company’s commitment to certification and compliance ensures that customers can have peace of mind when selecting any Harvest King Oil product.

Harvest King Oil Certification and Compliance: By the Numbers

Statistics Highlights
Number of different brands mentioned 92
Companies with multiple products
  • Pennzoil-Quaker State Company – 4 products
  • Citgo Petroleum Corporation – 4 products
  • Lubricants UK Ltd Technology Center – 5 products
  • ExxonMobil Product Solutions Company – 4 products
  • Bombardier Recreational Products, Inc. – 4 products
Most frequent company names
  1. Lubricants UK Ltd Technology Center
  2. Highline Warren LLC
  3. Citgo Petroleum Corporation
  4. Pinnacle Oil Holdings, LLC
  5. ExxonMobil Product Solutions Company
Range of products offered Harvest King Oil offers a diverse range of products, including premium, synthetic blend, and mineral 2-cycle outboard oils, marine 2-cycle oils, water-cooled 2-cycle motor oils, super premium engine oils, and other specialized oils for outboard engines.
Global representation of companies Companies from various regions worldwide are present in the list, such as Petron Corporation, Chevron Global Lubricants, Yamaha Motor Europe, and Smartoil de Guatemala, S.A.
Specific brand performance comparison A comprehensive analysis would be needed to determine the market performance of each brand based on the number of listings, company reputation, product variety, and other factors.
Total number of different types of oil brands 125
Maximum number of oil brands from a single company 13 from Bombardier Recreational Products, Inc.
Number of different companies listed as oil manufacturers 82
Number of oil brands associated with Citgo Petroleum Corporation 4
Total number of oil brands with ‘Outboard’ in their name 50
Number of oil brands listed with ‘Super’ in their name 16
Number of different oil brands associated with Pennzoil-Quaker State Company 5
Number of oil brands specifically indicated for outboard engines 27
Number of oil brands designed for marine use 69
Number of oil brands meant for 2-cycle engines 108

Harvest King Oil’s commitment to certification and compliance, along with its wide range of products, makes it a standout choice for customers seeking superior quality and performance.

Harvest King Oil User Reviews

When it comes to evaluating a product, hearing from actual users is invaluable. Harvest King Oil has garnered a range of reviews from its users, showcasing both positive and negative experiences with the brand. Let’s take a closer look at what users have to say about Harvest King Oil.

First and foremost, it is important to note that Harvest King Oil has a significant presence across various locations, including Alabama, Northwest Ohio, East central Iowa, NE ND, Glasgow, Ky, SE MT, Mid Michigan, Eastern Oregon, Fruita CO, and more. This widespread availability demonstrates the brand’s established presence in the market since at least 1973.

Many users have praised Harvest King Oil for its impressive performance. Some report that the oil remains clean even after extended use, indicating its ability to maintain quality and protect their equipment. Additionally, users mention changing the oil between 3 and 5K miles, highlighting the brand’s reliability and longevity.

One of the key factors that sets Harvest King Oil apart is its affordability. Users perceive Harvest King Oil as a low-cost option compared to other brands, such as Walmart Supertech oil. This affordability, coupled with its satisfactory performance, makes Harvest King Oil an attractive choice for budget-conscious individuals.

It is worth mentioning that specific Harvest King products have received positive feedback as well. For example, Harvest King lithium grease, sold for just $1 per tube, has garnered attention for its quality and affordability.

However, like any product, Harvest King Oil has also received some negative reviews. One user reported engine and hydraulic failures after using Harvest King HYD oil, leading them to switch to a different brand. These instances emphasize the importance of considering individual usage conditions and maintenance practices when evaluating user experiences.

“Skepticism towards cheaper oils and grease is not unfounded. It is crucial to prioritize the quality and protection of our equipment, even if it means investing a little more in reputable brands.” – Harvest King Oil user

Despite these occasional negative experiences, it is interesting to note that some users believe the cleanliness of the engine is more closely related to maintenance habits and operating conditions rather than the oil brand itself. They argue that the variation in quality and additives used in different oil brands plays a significant role in performance.

Experienced users familiar with oil testing stress the importance of quality when it comes to lubricants. They assert that not all oils are equal, and Harvest King Oil’s quality should not be discounted.

Comparative references to other brands, such as Tractor Supply’s and Mobil 1, highlight the varied preferences and applications among users. This further demonstrates that oil performance and cleanliness are dependent on driving conditions and maintenance practices, rather than the brand alone.

Looking at industry-specific terms like American Petroleum Institute (API) certification and engine protection additives, it’s apparent that users are well-informed and consider these factors when discussing Harvest King Oil.

In terms of price, Harvest King Oil offers competitive options. For example, a 5 QT Full Synthetic Dexos oil from Harvest King is priced at just $10.99. This compares favorably to leading brands like Mobil and Castrol, providing cost savings opportunities, especially when promotions and rebates are available.

Overall, the user reviews of Harvest King Oil present a mixed perspective. While some users laud its affordability, performance, and durability, others express reservations and suggest considering other trusted brands. It is important to evaluate these reviews while understanding the unique conditions and preferences of each user.

Harvest King Oil User Experiences

Positive Experiences Negative Experiences
Harvest King Oil remains clean after extended use Engine and hydraulic failures reported by some users
Affordable option compared to other brands Mentions of skepticism towards cheaper oils and grease
Specific products like Harvest King lithium grease regarded highly Emphasis on the importance of quality for equipment protection
Positive impact on engine knock and oil consumption at high mileage Mixed views on the quality and value-for-money in comparison to other established brands
Reduced oil changes due to extended oil life with Harvest King full synthetic

The table above summarizes the key positive and negative experiences reported by Harvest King Oil users. It provides a comprehensive overview of the various aspects mentioned in user reviews.

Comparable Brands to Harvest King Oil

When it comes to hydraulic fluids, there are several alternative brands to Harvest King Oil that offer similar lubricant options. These brands provide competition for Harvest King and give users various alternatives to choose from, depending on their specific needs and preferences.


Pennzoil is a well-established brand known for its high-quality lubricants. Their hydraulic fluids are formulated to provide excellent protection against wear, oxidation, and foaming. While Pennzoil may have a slightly higher price point than Harvest King, many users consider it to be a reliable alternative.

Mobil 1

Mobil 1 is another brand that offers a range of hydraulic fluids suitable for various applications. Their products are designed to deliver exceptional performance and protection, even in demanding conditions. Users who prioritize performance and quality may find Mobil 1 to be a viable option.


Castrol is a trusted name in the lubricant industry, with a wide range of products catering to different needs. Their hydraulic fluids are formulated to provide optimum performance and protection, ensuring smooth operation and extended equipment life. Castrol is often recognized as a reliable alternative to Harvest King.

These brands, along with Harvest King, provide consumers with choices when it comes to selecting the right hydraulic fluid for their equipment. Each brand has its own unique features and benefits, allowing users to find the best fit for their specific requirements.

It’s important to consider factors such as cost, performance, and compatibility when evaluating different lubricant brands. By comparing options like Harvest King, Pennzoil, Mobil 1, and Castrol, users can make an informed decision that aligns with their needs and budget.

Brand Price per gallon Main Features
Harvest King $6.50 – Made and bottled by Citgo
– Meets J20E specification
– Competitive pricing for tractor supply stores
Pennzoil $Varies – Established brand with high-quality lubricants
– Excellent wear, oxidation, and foaming protection
Mobil 1 $Varies – Trusted brand for exceptional performance
– Suitable for demanding conditions
Castrol $Varies – Trusted name with a wide range of products
– Optimum performance and extended equipment life

It’s worth noting that while Harvest King provides an affordable option, there may be slight trade-offs in terms of brand recognition and user experiences. Some users have reported foaming issues with Harvest King after fifty hours of use, and the product does not meet John Deere specifications. However, for those looking for a cost-effective strategy or who prioritize competitive pricing, Harvest King may still be a suitable choice.

Ultimately, the decision between Harvest King and its competitors comes down to individual preferences, budget considerations, and the specific requirements of the equipment being used. Consulting with professionals and conducting thorough research can help users make an informed decision when selecting the right hydraulic fluid brand.

Factors to Consider When Choosing an Oil Brand

When it comes to choosing the right oil brand for your vehicle, there are several important factors to consider. By understanding these factors, you can make an informed decision that ensures optimal performance and protection for your engine.

1. Vehicle Requirements

One of the first factors to consider is the specific requirements of your vehicle. Different vehicle models and engine types may have different oil specifications. It’s essential to consult your vehicle’s owner manual or manufacturer recommendations to determine the correct oil viscosity, API service category, and any additional requirements.

2. Usage Conditions

The conditions in which you operate your vehicle also play a significant role in oil selection. If you frequently drive in extreme temperatures or engage in heavy-duty activities such as towing or off-roading, it may be beneficial to choose an oil brand that offers enhanced protection and performance under such conditions.

3. Maintenance Practices

Consider your maintenance practices and schedule when selecting an oil brand. If you prefer to change your oil at longer intervals or have advanced lubrication needs, high-quality synthetic oils or oils designed for high-mileage vehicles may be suitable options.

4. Pricing

Price is another crucial factor to consider when selecting an oil brand. While it’s important to balance cost-effectiveness, it’s equally vital to prioritize quality and performance. Comparing prices among reputable brands and considering your budget can help you make an informed decision.

5. Industry Recommendations

Take advantage of the information shared by industry professionals, including discussions on oil quality and performance. Consider reputable sources that evaluate different oil brands and provide insights into their effectiveness. This information can offer valuable guidance in choosing a reliable and high-performing oil brand.

6. Compatibility with Equipment and Applications

When selecting an oil brand, consider its compatibility with your specific equipment or application. Some oil brands may provide specific formulations for particular equipment models or industries, ensuring optimal performance and protection.

By considering these factors when choosing an oil brand, you can confidently select a lubricant that meets the requirements of your vehicle, usage conditions, and maintenance practices. Take the time to research different brands, compare prices, and consult industry professionals for valuable insights.

Where to Purchase Harvest King Oil

If you’re interested in buying Harvest King Oil, there are several options available to you. This high-quality oil can be found at various retailers, including well-known farm stores like Rural King and Tractor Supply Co. These stores often carry a wide range of agricultural and industrial products, making it convenient to find Harvest King Oil.

In addition to physical stores, you may also be able to purchase Harvest King Oil from online retailers and distributors. Many retailers have established online platforms, allowing you to conveniently browse and purchase products from the comfort of your own home. It’s worth checking with reputable online retailers to see if they carry Harvest King Oil.

If you prefer to support local businesses, consider visiting the websites of farm supply stores or checking with local retailers in your area. They may have Harvest King Oil available for purchase or be able to direct you to nearby locations where you can find the product.

With its widespread availability, finding Harvest King Oil should not be a challenge. Whether you choose to visit a farm store, shop online, or explore local options, there are plenty of ways to get your hands on this exceptional oil. Start your search today and experience the benefits of Harvest King Oil for yourself!


After analyzing the various aspects of Harvest King Oil, it becomes clear that this brand offers a reliable and cost-effective option for automotive lubricants. Manufactured by Warren Oil, Harvest King Oil stands out as a competitively priced alternative to Walmart and other well-known brands. The Petroleum Quality Institute of America analysis results demonstrate that Harvest King’s 15W-40 oil compares favorably in quality to established brands like Rotella T3, Delo 400, and Delvac 1300.

Furthermore, when it comes to bar and chain oils, Harvest King Bar Chain Oil performs exceptionally well. It surpasses pricier options in wear protection, with minimal wear at 1.89 mm and the coolest bar temperature at 250°F. This proves that higher prices do not necessarily equate to better quality in bar and chain oils. Echo bar chain oil, priced competitively on Amazon, also exhibits impressive performance.

Ultimately, the choice of lubricant brand depends on individual preferences, vehicle specifications, and budget considerations. It is important to conduct thorough research, consider certifications and user reviews, and evaluate brand reputation. By doing so, you can make an informed decision and select the right oil brand for your needs. Harvest King Oil, with its affordability, quality, and impressive performance, certainly warrants consideration for your automotive lubricant requirements.


Who makes Harvest King Oil?

Harvest King Oil is manufactured by Warren Oil, the largest independent lubricant manufacturer and marketer in the United States.

How good is Harvest King Oil?

Harvest King Oil has gained a loyal following over the years due to its affordable prices compared to other lubricant brands. Many users have reported positive experiences with the oil, citing clean oil changes and no oil-related issues with their vehicles. However, the quality of the oil can vary depending on factors such as usage and maintenance practices.

What is the history of Harvest King Oil?

Harvest King Oil has been around since at least 1973 and is a brand that has stood the test of time. It is produced by Warren Oil in the United States and is known for its affordability.

What is the quality of Harvest King Oil?

Harvest King Oil carries the American Petroleum Institute (API) certification, which ensures that the oil meets specific standards for viscosity, engine protection, and fuel efficiency set by the API. It may also meet the standards set by vehicle manufacturers.

What do user reviews say about Harvest King Oil?

User reviews of Harvest King Oil are mixed. Some users have had positive experiences, noting its affordability and satisfactory performance. Others have expressed concerns about the quality and reliability of the oil. It is important to consider individual usage conditions and maintenance practices when evaluating user reviews.

What are some comparable brands to Harvest King Oil?

Some comparable lubricant brands to Harvest King Oil include Pennzoil, Mobil 1, and Castrol. These brands are well-known and have established reputations for producing high-quality lubricants.

What factors should I consider when choosing an oil brand?

When choosing an oil brand, it is important to consider factors such as the specific requirements of your vehicle, usage conditions, and maintenance practices. Different vehicles may require different types of oil, such as synthetic or conventional. Additionally, considering certifications and industry standards, like the API certification, can help guide your decision-making process.

Where can I purchase Harvest King Oil?

Harvest King Oil can be found at various retailers, including farm stores like Rural King and Tractor Supply Co. It is also available through some online retailers and distributors. It is recommended to check with local retailers or visit their websites to find the nearest location where you can purchase Harvest King Oil.

What is the conclusion on Harvest King Oil?

Harvest King Oil, manufactured by Warren Oil, offers an affordable option for those in need of automotive lubricants. While there are mixed reviews and considerations to keep in mind, many users have had positive experiences with the oil. Ultimately, the choice of which oil brand to use depends on individual preferences, vehicle specifications, and budget considerations.