For synthetic lubricants used in high-pressure hydraulic systems on offshore rigs, several specific properties are critical to ensure reliable operation and prevent equipment failures. High viscosity index (VI) is essential, as it indicates the lubricant's ability to maintain a stable viscosity over a wide range of temperatures. Offshore rigs experience significant temperature variations, and a high VI ensures consistent performance regardless of the ambient temperature. Excellent thermal stability is crucial, as the lubricant must resist degradation and sludge formation at high temperatur....
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