If you have any questions regarding our company and products, you may find it helpful to read the following questions and answers. These questions, which are answered in a detailed manner, represent some of the most commonly asked questions that we encounter.
If you have additional questions that are not covered in this section, please contact our Sales Offices. You can also use our information request form to e-mail your questions or comments.
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Are the synthetic base stocks and additives facilities ISO-9000 registered? |
What is the definition of synthetic lubricants? |
How are Group II and Group III base stocks different from Group IV (PAO) stocks? |
Why are Group V (esters and other synthetics) base stocks formulated in synthetic engine oils? |
Are all of ExxonMobil Chemical's PAOs internationally registered? |
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Are the synthetic base stocks and additives facilities ISO-9000 registered?
Our manufacturing facilities are ISO-9002 registered. They utilizes state-of-the-art manufacturing equipment and procedures to manufacture quality synthetic base stocks and additives in a safe and environmentally friendly manner. In addition, our facilities in the U.S. are certified by OSHA's STAR program.
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What is the definition of synthetic lubricants?
Synthetic lubricants are manufactured in chemical plants by reacting components and are specifically designed to possess physical and performance characteristics that are superior to mineral oils. As a result, the molecular structure of synthetic lubricants can be precisely arranged to meet, and often exceed, manufacturers' criteria for high-performance equipment.
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How are Group II and Group III base stocks different from Group IV (PAO) stocks?
Group II and Group III base stocks are enhanced mineral oils that are manufactured by a refining and extraction process which partially removes undesirable molecules that are present in the feed. In contrast, Group IV (PAO) base stocks are chemically synthesized and therefore, do not contain undesirable species.
Group II base stocks may be made by hydrotreating, hydrocracking or combinations of solvent processing and hydrogen processing. They have 80 -120 VI with more than 90% saturates and less than or equal to 0.03% sulfur. Group III base stocks are manufactured by hydrocracking and isomerizing slack wax. They generally have more than or equal to 120 VI with more than or equal to 90% saturates and less than or equal to 0.03% sulfur.
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Why are Group V (esters and other synthetics) base stocks formulated in synthetic engine oils?
Group V base stocks are formulated in engine oils for improved additive solubility, improved deposit control and seal compatibility.
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Are all of ExxonMobil Chemical's PAOs internationally registered?
All of our PAOs are registered worldwide. Contact us for information on esters registration.
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