In early 1995, a new compressor for processing light hydrocarbons was brought online for the liquefaction of these products. The lube oil system was charged with expensive synthetic oil. From the first startup, it was found that the liquefied gas was leaking into the lube oil. The gas was becoming entrained in the oil diluting it, lowering its flash point and viscosity, and reducing the lubricating capability to unacceptable levels.