retmil46 wrote:
Another filter to try is Fleetguard, available at Cummins dealers. A friend in Wyoming has an '04 Dodge Cummins Quad Cab, has always used Fleetguard filters on it. When i was out there in August, we pulled into a station to fuel up and he checked the oil. He showed me the dipstick, and the oil looked like he'd just changed it in the last few days. He told me that oil had been in the engine for over 4000 miles. From what i gathered, the Fleetguard filter for his Dodge ran around 6 or 7 bucks.
He also owns an '05 Sport CRD, and that's one thing he's complained about - while the oil in the Cummins will stay clean for 4000 miles, with the CRD you drive around the block and the stuff turns black, as he put it.
I went to the Wix website, found the number for their oil filter for the CRD, then went to the Fleetguard website, and the Wix number cross-referenced to a Fleetguard filter. The Fleetguard P/N is LF3339.
I don't know about the Wix filter. Besides fitting the CRD, it's also listed as fitting Ford/Mercury gas cars made from '81 thru '04. In other words, this just might be a generic gas car filter they've already been making for 20 years, that just happened to be the right size and thread pattern to fit the CRD. Filtration was listed as 20 microns, nothing outstanding there.
I'm going back to the Fleetguard website and try crossing the Mopar filter number and see what happens.
Same here with my Powerstroke. The oil in the Ford at 5,000 miles is cleaner than the oil in the CRD at 5 miles. I use Amsoil HDD 5W-30 in both and Amsoil SDF-34 oil filter in the CRD.