I would use the Castrol oil, its a little heavier, I have used for really
deep vacuums Gear oil, you can get it at any auto supply store. Its very
heavy so it allows a really deep vaccum and wont thin out if you have to
pump for a long time and the pump gets hot.
Let us know how the repair comes out.
Suggest you call or write:
North American Headquarters:
REFCO Manufacturing (US) Inc.
66 B Industry Avenue
Springfield MA 01104/USA
24 / 7 Customer Service +1 800 848 4232
Business / Office +1 413 739 4761
Fax +1 413 733 9267
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