Jello

Oil slimes don't need much electrolytes because the oils in them are hard enough to evaporate and stick easily enough

Oil slimes prefer to eat fat and Oil rich food because it desoves easily in their body and they can consume crude oil

Oil slimes have a thick and stiff gell membrane compared to water slimes and they make less mucus to coat them because they don't need to worry about drying out as much and they have melanin that helps the cells resist uv light

Oil slimes start producing a oil in their breasts which can be turned into fuel or be used as cooking oil when they consume human semen which they call "human slime"

Slimes are often kept as pets