▲ 21 r/Cummins
A reminder as to why I have the opinion you shouldn’t use a cheap oil-bath air filter on your Cummins (or any) truck.
From left to right is a new piston ring, low mileage, higher mileage (289k miles) with regular maintenance, then one that ran a K&N from 104k to 179k miles, when is started knocking. It’s rough edge is sharp enough to cut you easily.
u/Cow-puncher77 — 4 days ago