blow by
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.
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
"Make sure you don't have a ton of blow by with it when the engine's running. That's just indicating the engine's worn out."
The Motor Medics Helping People to Repair Their Cars Over The Phone Under The Hood show
"Did you go through anything like valve seals or piston rings? Or did you are you getting any sort of blow by burn and oil?"
Walt Sipp from ProCharger talks about Corvette C8 and Gen 1 Ford Lightning superchargers, OBS Ford Truck superchargers and more. CarCast
Cars Known For This
Episodes Mentioning "blow by"
Driven Radio Show #361: Ryan Williams of Car Curious
Driven Radio Show
Driven Radio Show #356: John Klinger Part 1
Driven Radio Show
The Motor Medics Helping People to Repair Their Cars Over The Phone
Under The Hood show
Q & A with Keith Jones of Total Seal Piston Rings
Hidden Horsepower by Total Seal
The Smart Way to Build a 4th Gen Cummins
The Diesel Podcast
042 | I Took Dad’s Fox Body 5.0! Double-Decker Cars & Mexican GTRs
Cool Cars with Chris: Car Talk, Driving Tips & Auto Life
208. Smeedia on the EJ33 Swap, Modding Subarus and Choosing Builds
Minnoxide
207. Building 1000HP Evos, Engine Programs, Pushing the B58 and GR Corolla Platforms w/ SpeedLab INC
Minnoxide
Walt Sipp from ProCharger talks about Corvette C8 and Gen 1 Ford Lightning superchargers, OBS Ford Truck superchargers and more.
CarCast
The Car Show with Dane Donovan - 6/13/2026
The Car Show with Dale and Dane Donovan
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