What is Thicker Than 75w85 Oil?

What is Thicker Than 75w85 Oil?

When it comes to the intricate workings of machinery and engines, lubricants play a vital role in ensuring smooth operation and longevity. Among the plethora of lubricants available, 75w85 oil stands as a commendable choice for many applications. But what if you’re seeking something even thicker, something that can provide enhanced protection and performance? Let’s explore the world of lubrication and delve into the differences between 75w85 vs 75w90 oil viscosities.

Understanding Viscosity

Before delving into thicker alternatives, it’s crucial to grasp the concept of viscosity and its significance in lubrication. Viscosity essentially refers to a fluid’s resistance to flow. In simpler terms, it determines how thick or thin a lubricant is. The viscosity of an oil is typically measured at different temperatures, which is denoted by the numbers preceding the ‘w’ in its grade.

In the case of 75w85 oil, it signifies a multi-grade lubricant suitable for a wide range of temperatures. The ’75’ represents its viscosity at lower temperatures, while ’85’ indicates its viscosity at higher temperatures. This balanced viscosity profile makes it a popular choice for various automotive and industrial applications.

Exploring Thicker Alternatives

While 75w85 oil offers commendable performance across diverse conditions, certain situations demand even thicker lubricants to ensure optimal protection and performance. Here are some alternatives that surpass the viscosity of 75w85 oil:

75w85 Oil

  • This oil boasts a higher viscosity range compared to 75w85 oil, making it ideal for heavy-duty applications.
  • With its thicker consistency, 75w85 oil provides enhanced film strength and protection against wear and tear.
  • Commonly used in gearboxes, axles, and differentials, it excels in environments with high loads and temperatures.

75w90 Oil

  • Among the thickest lubricants available, 75w90 oil offers superior viscosity for extreme operating conditions.
  • It exhibits excellent thermal stability and shear resistance, making it suitable for heavy-duty gears and bearings.
  • Ideal for industrial machinery, trucks, and off-road vehicles, 75w90 oil ensures reliable performance under arduous circumstances.

Benefits of Thicker Lubricants

Embracing thicker lubricants brings forth a multitude of benefits, elevating the efficiency and longevity of machinery and equipment. Here’s why thicker oils are favored in certain applications:

  • Enhanced Protection: Thicker lubricants form robust barriers against friction and heat, safeguarding components from premature wear and damage.
  • Improved Load-Carrying Capacity: The higher viscosity of thicker oils enables them to bear heavier loads without succumbing to viscosity breakdown, ensuring smooth operation under challenging conditions.
  • Extended Service Life: By minimizing metal-to-metal contact and reducing frictional losses, thicker lubricants prolong the service life of critical components, contributing to overall reliability and cost-effectiveness.

Frequently Asked Questions

Can I mix different viscosity oils?

While it’s generally advisable to stick to one viscosity grade for optimal performance, certain situations allow for mixing oils of different viscosities. However, it’s crucial to consult the manufacturer’s recommendations and ensure compatibility before blending lubricants.

How often should I change to thicker oil?

The frequency of oil changes depends on various factors such as operating conditions, load intensity, and manufacturer recommendations. It’s advisable to adhere to the prescribed maintenance intervals and monitor the condition of the lubricant regularly to determine the appropriate time for a change.

Are thicker oils suitable for all applications?

Thicker oils excel in heavy-duty applications where robust protection and load-carrying capacity are paramount. However, they may not be suitable for all scenarios, especially those requiring low-friction performance or precise viscosity control. It’s essential to select lubricants based on the specific requirements of the application.


In conclusion, while 75w85 oil stands as a reliable choice for many lubrication needs, exploring thicker alternatives unveils a realm of enhanced protection and performance. By understanding the nuances of viscosity and embracing the benefits of thicker lubricants, you can elevate the efficiency and longevity of your machinery, ensuring smooth operation across diverse conditions. Dare to venture beyond the familiar, and discover the power of thicker oils in optimizing performance and reliability.

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