How to Select the Right Hydraulic Oil

select the right hydraulic oil

How to Select the Right Hydraulic Oil

Selecting the right hydraulic oil for your machine or engine is important, yet crucial. Having the wrong oil for your engine could cause damage to your equipment. Each type of fluid has particular characteristics in terms of anti-wear properties, suitable operating conditions, and viscosity. In this article, we will be giving you tips on how to select the right hydraulic oil for your engine.

Hydraulic oil is a crucial element in every equipment as it influences the importance of different parameters such as contamination, heat dissipation, lubrication, power transmission, sludge, formation, and transport of debris. It is important to select the right hydraulic oil for your engine since it could affect the operating conditions of your equipment.\

pumps and viscosity philippines

Here are some useful information to help you choose the right hydraulic oil for your system.

Pumps and Viscosity Requirements

Listed below are three major design types of pumps used in hydraulic systems.

1. Gear Pump

This type of pump is the most inefficient among the three, but is more agreeable with larger amounts of contamination. There are two types of gear pumps, Internal, which offers a wide range of viscosity choices with the highest at 2,200 centistokes (cSt). And External, which is less efficient than their counterpart, but has advantages. Their viscosity range is limited to 300 cSt.

2. Piston Pump

Piston pumps are more durable in design and operation than a vane pump. The typical viscosity range for piston pumps is 10 to 160 cSt at operating temperatures.

3. Vane Pump

The Vane Pump typically requires a viscosity range of 14 to 160 centistokes. These pumps are typically expensive to maintain, yet are very good at maintaining a steady flow.


chemical makeup of hydraulic oil

Chemical Makeup of Hydraulic Oil

This can take many forms when selecting or choosing for specific applications.

1. Full-Synthetic Oil

This is a man-made chain of molecules and is a great choice where high or low temperatures are present or required.

2. Petroleum Oil

A common type of oil made from refined crude oil to a level that is to be achieved for better lubricant performance with the addition of additives.

3. Water-Based Fluid

This is the least common type of fluid that is being used. It is usually needed when there is a high probability of fire. This also offers good fire protection, but it lacks wear-protection.


Roles of Hydraulic Oil

Hydraulic Oil has a number of roles in a smooth operation of a well-balanced system. These roles range from heat or power transfer medium, and lubrication medium.

hydraulic oil chemical philippines

Application-Based Selection

This is one of the most critical attributes when selecting the right hydraulic oil for your machine or engine. The additives, operation, viscosity, type, and more must be determined when selecting hydraulic oil. Ignoring these factors could damage your engine and can cause it to fail. The application and operation must be taken seriously to avoid damage to your hydraulic system.


It is important to know what type of engine or machine you have before selecting the right hydraulic oil. If you are unsure of what type of hydraulic oil you are going to use, contact your hydraulic oil provider and distributor.

Are you looking for a hydraulic oil provider in the Philippines for your engine? Contact our specialists today and let us help you power your system!