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Understanding the Differences in Base Oil Group

Group I

Group II 
Hydrotreated, is a more complex process than Group I.
A bright and clear oil, 0 ppm of water content.

Group III
Severely hydrocracked (higher pressure and heat)
A purer base oil.

Group IV
Suitable for broader temperature range.

Group V 
Mixed with other base stocks to enhance the oil’s properties, such as PAG oil.

Remember, whichever base oil you choose, just be sure it is appropriate for the application, temperature range, and conditions in your plant.

Group II over Group I offer:-

Better thermal stability.
Better oxidation stability.
Longer service life.
Better resistance to the formation of sludge.
Increased component protection.

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