At present VPI only answers the phone Tuesday through Thursday.
While I can't comment on the VPI Aries motor. The HW 19 MK IV I have recommends using 40 weight motor oil and apply 1 or 2 drops to the motor shaft and no more than that. I do know that works and very well at that. However seeing as it has been put away for awhile, clean out as much dirt and debri as you can see. I use compressed air can and only apply as much pressure as to gently blow out the dirt.
Also a new belt would be a good idea as well.