Question:What have you used for vacuum pump oil? I have been running NVE pumps on my trucks since 2002. I have used manufacturer-recommended pump oil and have not had to change the vanes yet. The pump is still producing quick and full vacuum. I talk to and hear that some pumpers use the same oil they run in the diesel engines. Some say 10W-30; some say synthetic; some say whatever is on sale. I have a Conde pump on a tank used for portable sanitation and was told to run a certain type of oil. Answers: I bought a Jurop
