Posted November 27, 201410 yr Curious if what Dodge recommends and what Cummins recommended is the same! Bosch says 3 micron for the cp3 pump in my jeep.. Some swear that mopar installed 10 microns at the factory.
November 27, 201410 yr I think it was 3 or 5. People were installing 2 micron filters between the stock housing and cp3. But the testing changed and now they are considered 3 micron filters
November 27, 201410 yr When I spoke with Bosch they said 5um absolute single pass in the minimum spec. A Baldwin PF7977 meets that spec, and some additional filters will exceed it. Dodge did install 10um filters in 03-05ish, but due to excessive warranty claims they dropped to 7um circa MY06. It's better, but not enough. The same engine with non-Dodge filters got 5um filtration. 3um is right for OEM, in my research I haven't found an engine that calls for it. I'm not saying they don't exist, just thst I haven't seen it. A quick search shows the Donaldon cross is 5um at 95%. I have yet to see a Donaldson filter be worse than the pure part, unlike NAPA/Wix. The Wix filter is 10um nominal.
Curious if what Dodge recommends and what Cummins recommended is the same!
Bosch says 3 micron for the cp3 pump in my jeep.. Some swear that mopar installed 10 microns at the factory.