For years I used a special oil… Organoil WoodWipe… and then I discovered that the Mineral Oil touted in American blogs was available here as Paraffin Oil… the medical type found in Chemists… they both worked well…but cost between AU$24 and AU$48 per litre…[1 quart]
Then Ken from Kenscraft put me onto Grape Seed Oil...
Only AU$9 for the same amount…and readily available at any supermarket…
I tried it and I liked it… it works great, absorbs well, dries fairly swiftly and make the colours of my boards pop… It does not go rancid as some vegetable oils can and I can use it in the kitchen… read I can get it from the kitchen when I run out in the workshop LOL