Pour Liquid Into a Small Opening Without a Funnel

The Problem

You need to pour a liquid — engine oil, windshield washer fluid, coolant, or even water — into a small opening, and you don't have a funnel. Pouring freehand usually means spilling half of it down the side.

The Technique

  1. Find a thin rod that fits into the opening — a dipstick, long screwdriver, dowel, or even a chopstick
  2. Insert the rod into the opening so it sticks up and out
  3. Hold the container of liquid above the opening
  4. Pour slowly, letting the liquid stream hit the rod
  5. Surface tension grabs the liquid and channels it down the rod, straight into the hole

The liquid follows the rod because of surface tension — it's the same principle that makes water run down the side of a glass when you pour too slowly. Here you're using that tendency on purpose.

Pro tip: This works best with a smooth rod and a slow, steady pour. If you pour too fast, the stream overwhelms the surface tension and you're back to splashing. Think gentle stream, not a dump.
Pro tip: For engine oil specifically: wipe the dipstick clean before using it as a guide. You don't want to contaminate the new oil with whatever was on the stick from your last check.
Pro tip: If you don't have a rod handy, a water bottle with the bottom cut off makes a great improvised funnel. But the rod trick is faster when you're in a pinch and don't have scissors either.