Long drive for nothing

Not a clue which Tractor Fluid we were using. It was from NAPA stores in 1994 when I was going to collage for my AS's in Automotive and Welding. Can you remember what oil you used 29+ years ago for cutting and grinding if it was not your equipment? I know it was clear. colorless and did not stink too bad. Tasted real bad on my salad.
Missing from post; '29+years/long time ago', lol...sadly I do remember sh*t like that......& stick with olive oil.....