The oil catch can is an oil/air separator. It can separate the oil droplets from the air circulating from the engine breather and then through the intake system. The internal combustion systems are ...

Oil catch cans are simple devices that can greatly benefit direct-injected engines. They prevent oil and other contaminants from causing buildup inside your engine's intake manifold. Here's how ...

Oil catch cans can help protect your vehicle’s engine. We explain how they work and if you should use one on a car or truck with a HEMI engine.

Build A Catch Can - Step By Step. HOT ROD Staff Writer Apr 01, 2011. See All 19 Photos. ... More specifically, we will use this as an air/oil separator for one of our cars' PCV systems, ...

Catch oil cans may seem like a gimmicky ploy to make you spend your hard-earned paycheck. However, there's a chance it may save you money in the long run.