Understanding Ashless Oil Grades: 32, 46, and 68

Selecting the right hydraulic oil for your machinery is crucial for optimal performance and longevity. Ashless oils, known for their clean operation and efficiency, are often the top choice for hydraulic systems in various industries. But with several oil grades available, how do you know which one to choose?

In this article, we’ll break down the differences between ashless oil grades 32, 46, and 68, helping you determine which is best for your equipment and how switching to the right grade can enhance performance. We’ll also introduce our top-quality ashless oils, designed to meet your specific industrial needs.

What Are Oil Grades 32, 46, and 68?

Oil grades refer to the viscosity of the oil, which measures its resistance to flow. Simply put, a lower number means thinner oil, and a higher number indicates thicker oil. Viscosity impacts how well the oil flows under various temperatures and pressure conditions, which directly affects the performance of your hydraulic systems.

Grade 32: This is the lightest of the three grades, ideal for systems operating in lower temperatures. Its lower viscosity ensures that the oil flows easily and reaches all critical components quickly.
Grade 46: This is a medium viscosity oil, suitable for moderate temperature ranges. It strikes a balance between performance in both cold and warm conditions.
Grade 68: This oil is thicker and designed for heavy-duty applications or systems operating in high-temperature environments. It provides excellent protection in hot conditions where thinner oils might break down.

Each of these oil grades serves specific purposes, and choosing the right one for your application will ensure optimal performance and longevity for your machinery.

When to Use Ashless Oil Grade 32?

Ashless Oil Grade 32 is perfect for hydraulic systems operating in colder environments or where quick lubrication is necessary. The lower viscosity allows the oil to flow smoothly even in low temperatures, preventing wear and ensuring efficient operation. It’s ideal for applications like:

Low-temperature hydraulic systems.
Light industrial machinery.
Certain automotive systems.

Check out Sinopec Ashless Zinc-Free Hydraulic Oil ISO VG 32 for high-quality, clean performance in these settings.

When to Use Ashless Oil Grade 46?

Ashless Oil Grade 46 is the most versatile of the three grades, suitable for a wide range of hydraulic systems. It’s particularly well-suited for moderate temperature applications, making it a popular choice in various industries. Use grade 46 oil in:

Hydraulic systems that experience fluctuating temperatures.
Construction equipment.
Agricultural machinery.

For reliable performance across temperature ranges, explore Sinopec Ashless Zinc-Free Hydraulic Oil ISO VG 46, designed for durability and cleanliness.

When to Use Ashless Oil Grade 68?

Ashless Oil Grade 68 is designed for the most demanding conditions, providing excellent protection in high-temperature or heavy-load applications. Its thicker consistency ensures that the oil stays in place, offering superior protection against wear. Use this grade for:

High-temperature industrial systems.
Heavy-duty machinery.
Hydraulic systems with continuous or high loads.

For heavy-duty applications, we recommend Sinopec Ashless Zinc-Free Hydraulic Oil ISO VG 68 to keep your machinery running smoothly even in the toughest conditions.

How to Choose the Right Ashless Oil Grade?

Choosing between oil grades 32, 46, and 68 depends on the specific needs of your hydraulic system:

Environmental temperature: If you operate in a cold environment, go for grade 32. For high-heat applications, grade 68 is best.
System pressure and load: For systems under heavy pressure or constant use, a thicker oil like grade 68 will offer better protection.
Versatility: If you need an all-purpose oil that can handle a range of conditions, grade 46 is your go-to option.

By using the right ashless oil grade, you can reduce wear, improve efficiency, and extend the life of your equipment.

Understanding the differences between ashless oil grades 32, 46, and 68 is key to keeping your hydraulic systems running efficiently. Each grade serves a unique purpose, and choosing the right one can prevent downtime, reduce maintenance, and save on long-term costs.

To experience the benefits of premium ashless zinc-free oils, browse our product lineup:

Invest in the right oil grade for your machinery and ensure long-lasting, efficient performance with Sinopec’s ashless zinc-free hydraulic oils.