15w40 55 Gallon Drum – Best Prices

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Your vehicle’s engine or the engine of your tractor or truck is analogous to your body. It will operate well if you treat it with care! But, just as you wouldn’t give your body low-quality food, you wouldn’t choose a subpar diesel oil for your four-wheel companion, would you? As a result, it’s critical to select the optimum 15w40 55 gallon drum of oil for your vehicle’s engine, whether it’s a diesel or not. 

Changing your vehicle’s oil as suggested will help you avoid costly damages! If you want to get the most out of your vehicle or diesel tractor, you need optimal engine performance. It also maintains it operating smoothly. If you want to rely on your engine all of the time, now is the time to start learning how to choose the right 15w40 55 gallon drum.

What is a 15w40 55 Gallon Drum of Motor Oil ?

A 15w40 55 gallon drum of motor oil is a type of synthetic motor oil that has been created to mimic the properties of biological oils. 15w40 motor oil is produced from petrochemicals and contains less antioxidants and anti-wear agents than natural oils, but it performs better in short intensive driving sessions with excellent reliability.

The higher the quality of the oil, the better it will perform and last longer. However, not all oils are created equal. The best synthetic motor oils have been created using advanced chemical processes to mimic biological oils such as camels milk. These biological oils have properties that synthetic oils cannot match.

Synthetic oils are made from petrochemicals that mimic these natural oils but at a much cheaper cost. They tend to be less effective in keeping moisture away from your engine. They do not produce as many antioxidants or anti-wear agents as natural oils do. This is why synthetic motor oil should be used for short intensive driving sessions where you need high performance and excellent reliability, but not extended periods of time under hard driving conditions or excessive heat exposure.

Engines using a 15w40 55 gallon drum motor oil

15w40 oil is best for most modern engines, but it might not be good for older engines that rely on thinner oil. 15w40 oil is generally safe and reliable, but it still needs to be applied with care because of the risk of contaminants clogging your engine’s vital parts.

It can be used with complete success in over-the-road diesel trucks, off-highway diesel equipment, farm tractors, and passenger cars and light trucks with diesel, turbo-charged diesel engines, or gasoline engines and is backward compatible with previous API Oil Categories.

Is there a difference between car oil and small engine oil?

Yes, there is a distinction between small engine and car oil. Smaller air-cooled engines operate hotter than the majority of engines, especially on hot summer days. As a result, small engine oil quickly heats up to 200-300 degrees Fahrenheit, whereas car oil heats up to 100 degrees. Because of the high zinc content, tiny engine oil should not be used in your car. They have the potential to do significant damage to a new vehicle.

How to Choose the Best 15w40 55 Gallon Drum of Motor Oil ?

The best 15w40 55 gallon drum of motor oil should be used in high-performance vehicles that rely on performance and low engine wear to maintain fuel efficiency. For example, if a car is running on premium unleaded gasoline, it should use synthetic oil as it has been proven to have a much higher anti-wear agent than standard oils.

If you want to choose the best quality motor oil for your vehicle, you can take into account the make and model, its driving style, and how often you plan on driving.

You should also consider how well the engine will perform with the type of oil you are using. For example, if an engine is designed to consume even amounts of oil at low temperatures then a heavier crude base or viscosity index number (VIN) grade may be recommended. On the other hand, if your engine has little tolerance for increased levels of friction during very high temperature conditions then a synthetic formula may provide better performance.

Lastly, look for an oil that has been tested extensively for its level of oxidation stability under various conditions such as long-term storage or extended exposure to sunlight or extreme heat exposure.

Are all 15w40 oils the same?

No. 15W40 solely specifies viscosity (multigrade range), not characteristics or suitability for a particular application.

Oils are certified and must be chosen to meet or exceed the engine manual’s recommendations. The base oils are usually backwards compatible, but the oil standards are not. A totally synthetic oil, while superior on paper, may not be suitable for an old lump with wear, stiff seals, or large tolerances because the oil may just pass through.

What happens if you use 15w40 instead of 10w30?

Because 10W30 is thinner than 15W40, it has a lower film strength and is more prone to oxidation. As a result, high-quality chemicals are required to compensate for those flaws, allowing a 55-gallon drum of 10W30 motor oil to protect as well as 15W-40 and last as long.

The claimed viscosity of a high definition engine oil is a range on the SAE viscosity scale, rather than an exact viscosity. As a result, two different 10W-30 engine oils could provide two different fuel economy outcomes. Because the 15W-40 label can indicate a range of viscosities, the fuel economy benefits of a 10W-30 versus a 15W-40 oil will vary based on the particular viscosity of the 15W-40 oil.

10w40 vs 15w40 Motor Oil

The debate over which of the various engine oils on the market is better has been and continues to be long, detailed, and highly dependent on the engine in the car in question.

The temperature range of the oil and its viscosity at 100° C or 212° F are the key variations between 10w40 and 15w40. For example, 10W40 indicates that it can be used at temperatures as low as -20° C or -4° F, while 15W40 indicates that it can be used at temperatures as low as -15° or 5° F, and both engine oils can be used at 40° or 104° F.

For engines with a high mileage of 100.000 km (60.000 miles) or more, both 10w40 and 15w40 oils are recommended.

The 6 best brands of 15w40 55 gallon drum for performance and reliability

The best brands for performance and reliability are Mobil 1, Valvoline, Pennzoil, Castrol, Quaker State, and Valvoline MaxLife. They’re all non-synthetic motor oils but they excel in different areas.

  • Mobil 1: This oil has excellent wear protection ability and a high concentration of anti-wear agents. It is also highly resistant to oxidation and provides a great cleanliness level.
  • Valvoline: This oil has an excellent shear stability index (SSI). It offers the highest concentration of friction modifiers and a high viscosity index. With these features, your engine will maintain its performance better than with any other synthetic brand.
  • Pennzoil: It’s the most complete motor oil on the market with a good balance of anti-wear protection, oxidation resistance, anti-sludge properties, and weather-resistant properties.
  • Castrol: It’s one of the most effective oils on the market with good wear protection potential. The graphite formula helps protect against sludge formation and increase fuel efficiency by reducing friction loss across your engine’s surface.
  • Quaker State: This oil is ideal for winter use because it has a high cold resistance capabilities.
  • Valvoline MaxLife: This is an excellent choice for extended use or under severe conditions that require more miles per gallon (MPG) like stop/start driving or during extreme heat exposure or weather conditions where you need extreme protection.

Safety instructions to keep a 15w40 55 Gallon Drum


When you buy a 15w40 drum, its storage is definitely a question you should take care of. You should keep it in a room where the air is often refreshed, and where the temperature is not too high (20 degrees celsius or 68 degrees Farenheit should do the trick). Ideally, you should also use some accessories like some drum racks or cases. This way, you can move turn the drum, and therefore agitate the motor oil more easily.


No matter the quantity of drums you have to feed your vehicle, cleaning them is one the first safety procedure you should follow. Some kits can be bought online to maintain the material of your barrel. If you don’t want to do that, you can also use WD-40 and a piece of cloth to keep the metal greasy and avoid rust. Taking care of your equipment avoids rust, which could damage the motor oil or the fluids contained in the drum.

Wear appropriate clothing

You have fresh air in the room ? You measured the temperature, and you have the right amount of degrees for the drum ? Great. You just need some protective gear now.

First, you need to protect your hand. When you move drums of lubricants, you may touch some sharp parts. Gloves are super easy to buy and really necessary not to cut yourself. Second, you need clothing. A waterproof top is nice to avoid any liquid to touch your skin at any point.

Even with high-duty drums, spilling some fluids can happen. Buy yourself one of these protective jackets and pants. It may sound like a useless item first, but you won’t regret it. Plus, they probably come with free shipping ! 


If you want to buy a 15W40 55 gallon drum of oil, you now have much more information to make the right choice to feed your engine. You won’t bump you head against the wall if you choose one of the lubricants listed on that page. But remember: finding the right oil for your vehicle is nothing is you don’t handle what you buy with safety !