I have a Nomad 2 pump and have been using Crossman Silicone oil for lube at the recommended intervals. Is there a substitute brand of oil I can buy that comes in larger containers/amounts that might be more cost effective?
Team Associated silicone shock oil...2oz bottle for $6 - $7 on Amazon in pretty much any viscosity you want.
Or you can buy larger quantities sold as treadmill belt lubricant.