Article originally published on Noria.com.
Synthetic gear oils are used whenever mineral gear oils have reached their performance limit and can no longer meet the application requirements; for example, at very low or high temperatures, extremely high loads, extraordinary ambient conditions, or if they fail to meet special requirements such as flammability. Even though additives can improve many properties of mineral oils, it is not possible to exert an unlimited influence on all their properties.
Synthetic oils provide a number of advantages. However, they do not necessarily out-perform mineral oils in all respects and may even result in some drawbacks despite their advantages.
This article presents only a few of the important factors in gear lubricant selection. Technical and performance specifics about lubricants lead to better, more precise decisions in making lubricant selection. It is also helpful to use a reputable lubricant supplier who is knowledgeable in selection options that affect energy consumption, machine life, lubricant consumption and waste oil generation. Included in these options should be the consideration of synthetic lubricants.
(Read the entire article, "Synthetic Gear Oil Selection" on Noria.com...)