Originally Posted by DrIsotope

Paraffin oil = lamp oil. They say it's supposedly kerosene, but mine is fairly viscous. I initially tried it after seeing a waxing video on YouTube where the guy added lamp oil, presumably to soften the straight paraffin. It does make the wax softer without adding tackiness, so it stays in the mix.

This is where I started as well, but I saw absolutely no perceptible difference between the UltraFast recipe and straight paraffin. No change in shift quality, chain noise, or longevity. My biggest overall change came from softening the wax by mixing in the Mr. Zogs.