I like this claim:
'Pros Explained: Improved Fuel Efficiency
An often overlooked but significant perk is how catch tanks can save you a few bucks at the pump. Think of them as the unsung heroes when it comes to optimizing your engine’s fuel efficiency.
So, give a silent nod to that catch tank...
Just grab a friend and an ohm meter. Six bits the green is the ground but it's easy to test with a meter. Once you find that, have your bud step on the brake and you're meter will show you the hot wire.
Just for the negative naysayers here, you slip the plastic tube over the Fumoto, run the tube into your container, and flip the lever. You don't need to wear plastic gloves because there's no mess.
For those of you who change your oil, they're slick.