Kind of big area covered by generic term oil. Seems to me that most lubes (the ones that go in the end-grain at the head of the stock) are petroleum distillates and have been since John D. struck Pennsylvania Light. Tung and linseed are plant resins aren't they? I agree with OB and Chuck that there is a big difference between sealing wood and filling grain and marinating the stuff under pressure. And filled grain, be it with deposits of rottenstone, Silex, or cured finish isn't in the wood; it's in depressions in the wood.

jack