“Do you have any suggestions on whether to use a third-party lab for moisture testing? What instrument is commonly used for testing less than 50 parts per million (ppm) of water? The viscosity is around 1,800 centistokes. Additive interference is also a concern.”
“My supplier is pushing hard to move his synthetic gear oils into my operation. His position is that the units run too hot for long-term use of mineral oils. At what temperature should I switch to a synthetic lubricant for a non-circulated gearbox?”
With the limited amount of storage space inside plants, it is common to have an outside storage area for new oil drums. This practice creates a high risk for ingression of water into the new oil if the drums are not stored properly. This is especially true during the summer months when the temperature of the drums can be upward of 150 degrees F.
“I recently decanted some diesel engine oil into a 208-liter drum and weighed it. It weighed 197 kilograms. I then sealed the drum. After a week, I re-weighed the drum and discovered that it weighed only 185 kilograms. Where did the lost weight go?”
