sludge
Sludge is a gooey buildup that can form in the engine oil. If it builds up too much, it can cause the engine to not work properly.
Sludge is a thick, sticky substance that can accumulate in the engine oil due to contaminants and breakdown of oil over time. It can cause engine problems if not addressed.
Hear It Discussed
"run a solvent through your engine and clean out all the sludge. And for example, this may be burning oil because your piston rings are stuck."
#2614: The Sludgehammer The Best of Car Talk
"you're still going to get some of that sludge by and into the carburetor. [1060.9s] And you could use some carburetor cleaner in there, but you're kind of on the fence"
Under The Hood The Automotive Experts for Free Car Repair Advice Under The Hood show
"Is there any sludge? Any varnish?"
Ron Ananian, The Car Doctor - October 25, 2025 - Hour 2 - To Restore Or Not To Restore, That Is The Question? - (855)560-9900 24/7 Hotline Ron Ananian The Car Doctor
Cars Known For This
Episodes Mentioning "sludge"
This $2 Cummins Part Can Destroy Your Engine
The Diesel Podcast
Keeping your car maintenanced and check it often!
WCCO's Car Care
Car scans and codes, cooling your car, tires in the rain and more!
WCCO's Car Care
Under The Hood The Automotive Experts for Free Car Repair Advice
Under The Hood show
S3, E91 - All About Oil
The Truck Show Podcast
Air Vent Issues, The Cost of Spark Plugs, Some Strange Repairs
WCCO's Car Care
SnailMail: Wipping A Cookie With UHMWPE
Snail Trail 4x4 Offroad Podcast
You Might Be Able To Fix Your Car Without A Trip To The Mechanic
Under The Hood show
This Is A Call In Car Repair Show Helping You Save Money for the DIY Repair
Under The Hood show
It is Time to Be Aware of Pot Holes, How to Choose the Right Spark Plug, Why Nick Became a Mechanic
WCCO's Car Care
Help Improve This Entry
Spot an error or have a better explanation? Let us know.