A container pouring yellow oil into a machine in a workshop.

HYDRAULIC OIL

Oil being poured from a bottle into a black oil pan in a car engine.

ENGINE OIL

Close-up of a mechanical gear system with broken and leaking oil or lubricant.

GEAR OIL

A person wearing gloves pours new engine oil from a gray container into a car engine.

TRANSMISSION FLUID

Motor oil being poured from a yellow bottle into an engine.

LUBRICANTS

A mechanical engine with pistons and gears, with oil flowing through it, isolated on black background.

MOTOR OIL