If you’ve ever poured oil into a lawnmower or vehicle and experienced the ripple current that @that40yearguy faced, then it turns out that you’ve also, most likely, poured the oil wrong. To help with this, you may have tried to find various ways to make the process more efficient. While this may have involved various tactics and aids (such as a funnel), all you need to do is hold the bottle properly while pouring. Seriously, that’s it.
As @that40yearguy demonstrated, he’s always poured motor oil while holding the bottle with the spout down and at the bottom so it’s closer to the funnel, which seems to make sense. However, this is what creates the wobbly current, as well as what is known as sticking and belching. Instead, turn the bottle so that the spout is at the top. This allows the oil to come out in a nice smooth pour that will go straight into the mower’s oil tank.
While it may seem strange that this little switch would have such a big impact, it definitely works. Frankly, it simply has to do with the fact that the bottles are designed to let the oil pour out without letting air in. It is the air that causes the strange current, which is why you want to avoid it.
