The Swedish word for oil is
olja

Translations for oil and their definitions

smörja
1. n-c. crap, bullshit; something of very low quality or truthfulness
2. n-c. (colloquial) goo; any kind of partially liquid substance
3. v. to grease, to oil; to apply fat or oil to a surface
4. v. to apply salve, ointment or similar; to smear
5. v. (euphemistic) to grease, to bribe; to perform any action as to make someone more receptive to one's wishes