Do a search on the internet for "paper oil capacitors". Not talking about oil filled capacitors. That's industrial, an audio fad. Look for paper in oil. It shows a veritable top dawg list of biggest players in high end hifi. To name a few, try Jupiter Beeswax, Angela, Audio Note, Sprague, Jensen, Goodall, Gudeman, Astron, West, Dearborn and so on.Steve Bench says "paper in oil is extremely clean, best of the group. That may be one reason why some people prefer the sound of the paper capacitors. Although not recorded, oil capacitors in general appear to be very linear. These caps also appear to have relatively stable characteristics with change in frequency."
http://members.aol.com/sbench102/caps.html
http://www.jupitercondenser.com/jupitercapacitors.htm
http://www.angela.com/catalog/capacitors/Angela_PIO.html
http://www.audionote.co.uk/kits/an_capacitors_paper_in_oil.htm
http://www.referenceaudiomods.com/htmldocs/JAFPIO.html
http://www.referenceaudiomods.com/htmldocs/JCFPIO.html
http://store.tubedepot.com/vinoip.html
I'm not going to discuss this with you anymore. If you like using old tuner caps that's just peachy with me. I just think it's a weird fad and you could do better, that's all.