Quote Originally Posted by JapanABC View Post
Guys found out something worrying about Baldwin filters' filtration efficiency in the USA's domestic market.

baldwin-worse-filtration.jpg
What was the basis for such claims? Any comparison test made, single pass/multi-pass efficiency? Please provide link.
USDM truckers are dominated by Baldwin, Cummins Fleetguard, Cat, Donaldson, Parker might as well compare them. Wix, Fram, Purolator, etc were originally intended for small cars.