| Base Oil Groups: Manufacture, Properties and Performance | STLE (Society of Tribologists & Lubrication Engineers) | A detailed look at mineral, synthetic and even renewable oils and the manufacturing processes used to make them. | |
| The Evolution of Synthetic Lubricants | STLE (Society of Tribologists & Lubrication Engineers) | While more expensive than mineral oils, these complex compounds can result in an overall lower cost of machine maintenance. |
