Comment by KnuthIsGod

15 hours ago

" Our lab analyzed WD-40 with gas chromatography (GC) and mass spectroscopy (MS).:

Mineral oil

Decane

Nonane

Tridecane and Undecane

Tetradecane

Dimethyl Naphthalene

Cyclohexane

Carbon Dioxide"

https://www.wired.com/2009/04/st-whatsinside-6/

Not surprisingly, that's just a mixture of mostly liquid alkanes, although "mineral oil" is amusingly imprecise --- I guess they just mean everything heavier than C14 (tetradecane). The dimethyl naphthalene might be an impurity.