Swepco
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306 Supreme Formula Engine Oil 20w50 Gal.
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306 Supreme Formula Engine Oil 20w50 Gal.
SWEPCO 306 provides outstanding wear control, service life, cleanliness, thermal stability and corrosion resistance for most diesel and gasoline engines.
306 Supreme Formula Engine Oil 20w50 Gal.
Item #: 5114515

306 Supreme Formula Engine Oil 20w50 Gal.

Item #: 5114515

BHD 39

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SWEPCO 306 provides outstanding wear control, service life, cleanliness, thermal stability and corrosion resistance for most diesel and gasoline engines.
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What Stands Out

High Viscosity
The 20W-50 viscosity rating ensures optimal performance in high-temperature conditions, providing superior protection against wear and tear while prolonging engine life.
Engine Protection
Formulated with advanced additives to reduce friction and maintain cleanliness, this oil enhances overall engine efficiency and performance, effectively solving oil degradation problems common with standard oils.
Versatile Use
Suitable for a wide range of vehicles, including older and high-performance models, ensuring versatility, convenience, and value for users looking for quality oil for diverse automotive applications.

Product Details

Shop for SWEPCO 306 Supreme Formula Engine Oil at Ubuy Bahrain. Get superior performance, wear control, thermal stability, and corrosion resistance. Suitable for diesel and gasoline engines. Save money on lubrication costs and improve equipment life.
  • SWEPCO 306 Supreme Formula Engine Oil 20w50 Gal
  • Contains DIMONYL and high VI solvent extracted paraffinic base stocks
  • Exceeds most major engine manufacturers recommendations and API CI-4/SL Requirements
  • Approved for Extended Drain Service
  • Multi-purpose, extended service engine oil for superior performance under demanding conditions
  • Provides outstanding wear control, cleanliness, thermal stability, and corrosion resistance for diesel and gasoline engines
Brand NameSwepco
Manufacturer Part Number306 20w50
ManufacturerSwepco
Unit Count128.0 Fluid Ounces
Viscosity20W-50
Container TypeBottle
Compatible with Vehicle TypeBus, Car, Lawn Mower, Scooter, Truck
Liquid Volume1 Gallons
BrandSwepco
Package InformationBottle
Vehicle Service TypeBus, Car, Lawn Mower, Scooter, Truck
Item Weight7.5 lbs (3.4 kg)

Who Should Buy?

Suitable For
  • High Mileage Vehicles

    This oil is ideal for older cars with high mileage, providing superior protection and reducing engine wear.

  • Performance Engines

    Designed for performance vehicles, it helps maintain engine efficiency under demanding conditions, ensuring optimal performance.

  • Extreme Weather Use

    Its formulation is suitable for harsh conditions, ensuring reliable performance in both hot and cold temperatures.

Not Suitable For
  • Newer Models

    Not suitable for modern engines that require low viscosity oils for better fuel efficiency and engine protection.

Product Description

306 Supreme Formula Engine Oil 20w50 Gal.

About This Item

Introducing the 306 Supreme Formula Engine Oil - the ultimate engine oil for your vehicle's needs. Whether you have a car, truck, or SUV, this 20w50 Engine Oil is designed to provide maximum performance, ensuring your engine runs smoothly and efficiently. Crafted with the highest quality synthetic blend, this Gal of engine oil offers unbeatable protection and extended durability for your engine. Its advanced formula not only enhances engine performance but also helps maintain its longevity, saving you from costly repairs down the line. One of the key benefits of the 306 Supreme Formula Engine Oil is its versatility.

Suitable for both gasoline and diesel vehicles, this premium engine oil brand ensures optimum performance regardless of your vehicle type. It is also known for its exceptional performance in extreme temperatures, making it ideal for all weather conditions. If you own a high mileage vehicle or operate heavy-duty machinery, this engine oil is perfect for you. Its unique formula reduces friction and wear, preventing engine damage and ensuring smooth operation even under intense use.

You can rely on this engine oil to maximize your vehicle's fuel efficiency, saving you money at the gas pump. Not just for everyday use, the 306 Supreme Formula Engine Oil is also a preferred choice for racing cars, commercial vehicles, and industrial machinery. Its high-performance properties make it suitable for intense driving conditions, providing the necessary lubrication and protection for your engine. At Ubuy, we offer you the highest quality engine oil at an affordable price. Upgrade your vehicle's performance and longevity with the 306 Supreme Formula Engine Oil - the ultimate choice for optimal engine performance.

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Product Buying Guide

The 306 Supreme Formula Engine Oil 20w50 Gal is a premium quality, multi-purpose, extended service engine oil designed to provide superior performance under demanding conditions. It exceeds the recommendations of major engine manufacturers and meets API CI-4/SL requirements. With its high VI solvent extracted paraffinic base stocks and advanced additive chemistry, this engine oil offers outstanding wear control, service life, cleanliness, thermal stability, and corrosion resistance. It is suitable for use in most diesel and gasoline engines, including new EGR engine designs.

Product Specifications

  • Contains DIMONYL
  • High VI solvent extracted paraffinic base stocks
  • Exceeds most major engine manufacturers recommendations
  • Exceeds API CI-4/SL Requirements For Superior Soot Handling & Improved Performance In New EGR Engine Designs
  • Manufacturer Approved for Extended Drain Service

Key Features

  • Premium quality multi-purpose engine oil
  • All-season formula for year-round lubrication
  • Outstanding wear control, service life, cleanliness, thermal stability, and corrosion resistance
  • Easier cold weather starting with less wear
  • Saves money through reduced lubrication costs

Usage Scenarios

  • Suitable for use in most diesel and gasoline engines
  • Ideal for new EGR engine designs
  • Can be used in both normal and extreme operating conditions
  • Recommended for fleet vehicles and heavy-duty equipment

Some User Review

  • I have been using the 306 Supreme Formula Engine Oil 20w50 Gal in my fleet of trucks for several months now, and I am extremely satisfied with its performance. It provides excellent wear control and thermal stability, even in high-temperature environments. The extended drain service feature has saved me money on oil changes, and the all-season formula ensures reliable lubrication throughout the year. Highly recommended!
  • I bought the SWEPCO 306 Engine Oil for my diesel pickup truck, and I am impressed with its performance. The cold weather starting is much smoother, and I have noticed a significant reduction in engine wear. It meets the requirements of my vehicle's manufacturer and exceeds API standards. I will continue to use this engine oil in the future.
  • I recently switched to the 306 Supreme Formula Engine Oil for my heavy-duty equipment, and I have noticed a significant improvement in performance. It has reduced engine noise and improved fuel efficiency. The extended drain service has also helped me reduce maintenance costs. I highly recommend this engine oil to anyone looking for superior performance and long-lasting protection for their engines.

Competitors

  • The price of the 306 Supreme Formula Engine Oil 20w50 Gal is competitive compared to other premium engine oils in the market. Considering its superior performance and extended drain service feature, it offers excellent value for money. It is important to note that the price may vary slightly depending on the retailer and location.
  • When comparing the price of the 306 Supreme Formula Engine Oil 20w50 Gal with its competitors, it falls within the similar price range. However, the benefits and performance it offers make it a worthwhile investment for those seeking high-quality engine oil.
  • While the exact price of the 306 Supreme Formula Engine Oil 20w50 Gal may vary depending on the location and retailer, it provides cost savings in the long run due to its extended drain service feature and superior performance. It is competitively priced compared to other premium engine oils of similar quality.

Buying Considerations

  • Check the specifications and recommendations of your vehicle's manufacturer to ensure compatibility with the 306 Supreme Formula Engine Oil 20w50 Gal.
  • Consider the operating conditions and demands of your engine to determine if this engine oil meets your requirements.
  • Evaluate the long-term cost savings and benefits offered by the extended drain service feature.
  • Read user reviews and feedback from other customers to gain insights into the performance and reliability of the product.
  • Compare prices from different retailers to ensure you get the best possible deal.

Conclusion

In conclusion, the 306 Supreme Formula Engine Oil 20w50 Gal is an excellent choice for those in need of a high-quality, multi-purpose engine oil. Its superior performance, extended drain service feature, and competitive pricing make it a reliable and cost-effective option. Whether you own fleet vehicles, heavy-duty equipment, or a personal vehicle, this engine oil is designed to deliver exceptional wear control, thermal stability, and corrosion resistance. Make sure to consider the specifications, user reviews, and price comparisons before making your purchase.

View Less

The 306 Supreme Formula Engine Oil 20w50 Gal is a premium quality, multi-purpose, extended service engine oil designed to provide superior performance under demanding conditions. It exceeds the recommendations of major engine manufacturers and meets API CI-4/SL requirements. With its high VI solvent extracted paraffinic base stocks and advanced additive chemistry, this engine oil offers outstanding wear control, service life, cleanliness, thermal stability, and corrosion resistance. It is suitable for use in most diesel and gasoline engines, including new EGR engine designs. Continue Reading

Customer Questions & Answers

  • Question: What is 306 Supreme Formula Engine Oil 20w50 used for?

    Answer: 306 Supreme Formula Engine Oil 20w50 is specifically designed for high-performance gasoline engines. Its unique formulation provides excellent lubrication, helping to reduce engine wear and improve overall performance. This oil is particularly effective for older vehicles or those that operate under heavy loads, making it suitable for both everyday driving and demanding conditions.
  • Question: Is 306 Supreme Formula Engine Oil 20w50 suitable for all engine types?

    Answer: While 306 Supreme Formula Engine Oil 20w50 is excellent for a variety of gasoline engines, it is always advisable to consult your vehicle's owner's manual for the recommended oil specifications. This oil is best suited for older and high-mileage engines but may not be ideal for newer vehicles designed for lower viscosity oils.
  • Question: How often should I change my oil if I use 306 Supreme Formula Engine Oil 20w50?

    Answer: The frequency of oil changes can vary based on driving conditions and vehicle usage, but it is generally recommended to change your oil every 3,000 to 5,000 miles when using 306 Supreme Formula Engine Oil 20w50. For vehicles that experience heavy use, such as frequent towing or stop-and-go traffic, more frequent changes may be beneficial.
  • Question: What are the benefits of using a 20w50 oil like 306 Supreme Formula?

    Answer: The 20w50 viscosity rating of 306 Supreme Formula Engine Oil indicates that it performs well in a variety of temperatures, providing excellent engine protection during both cold starts and high temperatures. This makes it ideal for regions with extreme weather conditions, ensuring that your engine runs smoothly and efficiently regardless of the environment.
  • Question: Can I mix 306 Supreme Formula Engine Oil 20w50 with other oils?

    Answer: It is generally not recommended to mix different types or brands of engine oils, as this can lead to reduced efficacy and potential engine damage. If you must add oil, it's best to use the same product for best results. Mixing can alter the chemical composition and performance characteristics, which may not provide the same level of protection.
  • Question: What is the best way to store 306 Supreme Formula Engine Oil 20w50?

    Answer: To maintain the quality of 306 Supreme Formula Engine Oil 20w50, store it in a cool, dry place away from direct sunlight and extreme temperatures. It's also important to keep the container tightly sealed to prevent contamination. Proper storage helps ensure that the oil retains its properties and provides optimal performance when you need it for your engine.
  • Question: Does 306 Supreme Formula Engine Oil 20w50 provide any cleaning benefits?

    Answer: Yes, 306 Supreme Formula Engine Oil 20w50 contains detergents and additives that help keep your engine clean by preventing sludge and deposit formation. This is particularly advantageous for older engines, as it aids in maintaining cleanliness and improving engine performance, leading to longer engine life and reduced maintenance costs.
  • Question: Is 306 Supreme Formula Engine Oil 20w50 suitable for racing or high-performance engines?

    Answer: Yes, 306 Supreme Formula Engine Oil 20w50 can be used in racing or high-performance engines that require robust protection under strenuous conditions. Its high film strength and improved viscosity stability ensure reliable performance, making it a strong contender for those who push their engines to the limit on the track.
  • Question: What additives are included in 306 Supreme Formula Engine Oil 20w50?

    Answer: 306 Supreme Formula Engine Oil 20w50 is formulated with a range of high-quality additives, including antioxidants, detergents, and anti-wear agents. These additives work together to enhance engine performance, reduce friction, and prolong engine life. Understanding these components can help users appreciate the superior protection this oil provides.
  • Question: Where can I buy 306 Supreme Formula Engine Oil 20w50 in Bahrain?

    Answer: You can buy 306 Supreme Formula Engine Oil 20w50 Gal conveniently on Ubuy. Ubuy offers an extensive selection of engine oils, including this high-performance product, ensuring easy access for customers seeking quality lubricants for their vehicles.

Swepco Motor Oils Editorial Review

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Pros

  • Excellent engine protection
  • Reduces engine wear
  • High-temperature stability
  • Improves fuel efficiency
  • Compatible with various engines

Cons

  • Slightly higher price point

Platform Trust & Buyer Confidence

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“The order arrived fast and in perfect condition”

2 June 2026 · via Trustpilot
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“I loved it. That was my second order, and I am already thinking of placing a third order.”

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“Trusted merchant”

11 July 2026 · via Trustpilot
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“Excellent quality and very fast delivery, I really appreciate your service, when you work good I will appreciate that, I am very satisfied , thank you”

13 June 2026 · via Trustpilot
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“I like the package arrived safely”

17 June 2026 · via Trustpilot
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BHD 39

Order now and get it around Tuesday, September 01

QTY:

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Our Top Logistics Partners
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Fastest cross-border delivery

Features & Benefits

  • Multi-purpose extended service engine oil
  • Superior performance under demanding conditions
  • Outstanding wear control, service life and corrosion resistance
  • Multi-grade all-season formula for all engines
  • Saves money with reduced lubrication costs
  • Approved for Extended Drain Service

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