Just tried the new Sharp Oil. The first thing I noticed was the absence of a strong smell that you get with more volatile liquids like kerosene, citronella, lamp oil or white spirit.

Sharp Oil worked equally well on both diamond plates and oilstones.
The directions were to use just enough to keep the stone or plate moist.
The Sharp Oil worked extremely well. A small amount kept the stone well lubricated for a long time.
Clean-up was just a matter of wiping off the excess, whereas I used to wash my diamond plates as soon as I finished to avoid a build-up of rusty swarf.
The only negative was I didn’t like the bottle because of the difficulty in fitting the cap.
Recommended!
Geoff Unsworth