Glossary / General

blow by

13 Episode Mentions

Too Afraid to Ask

When a car’s engine isn’t sealing properly, the hot gases can escape past the rings and into the oil area. This can cause engine wear and reduced performance.

Technical Definition

Blow by refers to the leakage of combustion gases past the piston rings into the crankcase, often indicating worn rings or cylinder head gasket issues.

Hear It Discussed

"So I mean, you know this car's got a blow by that because it's more important than both of those cars."
171 Cunningham Tears, Heavy Breathing, and Box Flares Bring a Trailer Podcast 11:32

"How much blow by would you have? Exactly."
It's Slippery Slope Season with Your Favorite Chopped Uncs - DWA! Podcast Ep. #938 Driving While Awesome 20:19

"The rings... they're not perfect. You're going to get blow by in the, down in the crank case and that's going to oxidize your oil and then you're pumping that up back up top."
S3, E91 - All About Oil The Truck Show Podcast 35:32