06/22/2021
2012 & Up Ford F550, F650 & F750 with a 6.7L or 7.9L Cummings Engine.
Recommend changing the Breather Filter every 15,000 miles
The Breather Filter is what stops the oil coming through the PCV. If it is not changed every 15,000 miles it will suck all the oil out of your engine and blow out the blow by which will cause engine failure.