is this the right oil for my vac pump?

vac isnt pulling past 28.. probly should change the oil.

found this:
http://m.homedepot.com/p/Cat-Pumps-21-oz-Pump-Oil-AP31045/202021265

it says it is for pressure washers... but a pump is a pump right?

Robinair premium pump oil
High vacuum not high pressure

thanks snaps