Well this article argues omega-6 is healthy and prevents heart attacks - totally opposite. What should I believe https://www.health.harvard.edu/newsletter_article/no-need-to...
Vegetable oil bottles tend to get sticky on the outside. Used vegetable oil is great for wood preservation. Many stains have heavy metals in them.
https://en.wikipedia.org/wiki/Drying_oil https://en.wikipedia.org/wiki/Lipid_peroxidation https://en.wikipedia.org/wiki/Lipid_peroxidation#Hazards