<> But what happens below 40C? One example is the advantage PAO has over mineral oil in the area of high-temperature stability. In contrast, the Synfluid PAO formulation achieves a pass with as little as 30 percent PAO, the balance being Group I mineral oil. Applications for PAO-based lubricants expanded to circulating and gear oils. Satisfactory to 120F (48C) Ratings: Chemical Effect A = Excellent. 178 0 obj Due to this incompatibility with many but not all PAG lubricants, system change-outs from mineral oil to PAG-based lubricants may be costlier and take additional time. Our safety, technical and regulatory product information, as well as company and industry resources. The chart below shows an example of an engine oil formulation with two different quality PAOs. %PDF-1.5 % Level of maintenance and labor available. During 2011, Chevron Phillips Chemical acquired PAO assets in Beringen, Belgium, and began mPAO production in Texas. 0000018828 00000 n This is especially true when you consider the entire operating temperature range including startup. Some of the disadvantages of PAO-based lubricants are outlined in Table 6. The difference in the CCS viscosity at -35C is 15 percent, which is substantial. 0000000995 00000 n 0000048689 00000 n The chart below shows the comparison of PAO 4 and PAO 6 blended to the same viscosity as PAO 5, as well as PAO 6 and PAO 8 blended to the same viscosity as PAO 7. They may also be used to develop high-performance, environmentally friendly lubricants. These 1-dodecene-based products (Synfluid 2.5, 5, 7 and 9cSt PAOs) are now recognized to have superior performance in their own applications. The first step is the synthesis of oligomers (polymers with few repeating monomer units) from the linear alpha-olefin. PAG basestocks are synthetic polymers manufactured using a polymerization process that combines monomers ethylene oxide (EO), propylene oxide (PO), and butylene oxide (BO) singly as homopolymers or in combinations to form a growing chain from a nucleophilic starter molecule, commonly an alcohol. CHEMIC ATIBILITY 3 Updated 7/2/13 CHEMICALS METALS PLASTICS, ELASTOMERS & LEATHER A: Excellent, B: Good, C: Fair to Poor, D: Not recommended The rotary bomb bench test is a strong predictor of how base oils will perform in many automotive and industrial applications.
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