Do Oil Catch Cans Really Work? See What This Add W1 Catch-Can Caught At Only 600 Miles – 2014 Sierra

A few weeks ago, I installed an Add W1 dual clean-port oil catch can on my 2014 Sierra. ( After performing an oil change, I figured that I’d check the catch can contents. I have to say that I was quite surprised by how much was caught by the catch can after driving for just under 600 miles on my 2014 Sierra. All of the contaminants that were caught by the oil catch can would have stayed in the crankcase or would have been sent back through the engine (through the intake manifold).

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