Oil can

Used for crafting other items and to fulfil quest objectives. Can also be used in combat to apply oily to a target for five rounds.

Obtaining
Black and gold taps are scattered throughout the world. Use a tin can on one and you'll receive an oil can.

No Man's landing
Near the railway tracks beside the dock

The Flying L
At the rear, down the ramp from Lily

Near the front, beside Rose's garage

The Northern Slurries
Near the Grease pits.