I have used them on my truck (BT339 is the Baldwin #) and on the farm (Case skid loader and semis). We haven't ever had a problem with the Baldwins. We use the air, fuel and lube filters on the farm where I work.
They seem to do a better job than the Wix filters I had used before, but the oil stays a little clearer longer with the Fleetguard filters vs. the Wix or Baldwin.