Originally Posted By: Nyogtha
Originally Posted By: WellOiled
How did you determine the WIX combo valve and eCore combo valve ADBV function was non existent after 3k to 5k miles? Even in Louisiana.
Gravity
Prior truck was a 2001 Dodge Ram 1500 with a 5.9l (360 in3) engine. Oil filter was mounted at a downward angle on the side of the block like this.
When I would remove a Supertech ST16 or STP S2 ecore, not a drop of oil would run out of the mounting nipple nor the filter. Hydrostatic head drained the galleries above the filter and part of the filter back to the pan overnight before I changed the oil the next day. (I change my oil at ambient temperature, no hot parts to brush up against). When I would remove a Fram PH16 or PureOne PL24651, plenty of oil came out of the filter and mounting nipple during removal; the filter and galleries above the filter remained liquid filled overnight.
In Louisiana I ran 10W-30 year round. My point with the ecore design is I didn't experience media failure but I was in a relatively warm climate. I would not trust a prior generation ecore for winter service where I currently live even with 0W-XX oil due to the extra forces on the unsupported media spans at cold startup in single digit °F and lower temperatures. Maybe the newer generation ecores have enough center area support but I'm not going to run them personally as I don't have good experience with their combo valves anyway.
My current truck is a 2012 Ram with 5,7l (345 in3) V8. The oil filter is vertically mounted dome end down above the steering rack on the passenger's side. When I removed the PS 27899 very little oil came out of the mounting nipple across the outside of the filter case. Removing Mobil 1, PureOne, and Mopar filters always entails a cascade of oil coming out the mounting nipple across the outside of the filter case during removal. My conclusion is the PS 27899 had little if any ADBV function remaining at the end of the run.
My wife's 2012 Mustang 3.7l V6 has a horizontal oil filter mount. The PS27502 combo valve became cockeyed during service. It was dragging against the mounting nipple all through unscrewing the filter, with oil gushing out of the filter inlet holes the whole time. Compromise of bypass function into cockeyed constant bypassing also compromised any ADBV function. I've been running Mobil 1 M1-212 filters on her car since then with no such problems. Oil comes out the mounting nipple during removal but the filter retains oil outside the center tube during removal.
Originally Posted By: WellOiled
If this is true, then what about bypass function?
No idea really. Was loss of ADBV function in the ecores a sign of compromise of bypass function into constant bypassing as well, or just compromise of only the ADBV function? I don't know of a way to tell. There wasn't extra resistance of the combo valve dragging along the mounting nipple of the ecores like it was with the PS 27502 during removal - but the Champ and Wix combo valves are different in design (thicknesses are very different) so hard to say.
If ADBV function was compromised the other way, not allowing bypass when bypass is needed, I would expect the ecore to be more sensitive to media failure by cutting against the nylon cage. I didn't see signs of this but I was also using the ecores in a relatively warm climate, so perhaps I never experienced conditions where bypass differential pressure was ever reached. It should be noted the ecore center cage inherently provides less DP restriction than a perforated or louvered metal center tube, so perhaps this also contributes to helping not approach bypass pressures to some (small?) degree, but warm climate is the main factor I'd consider.
Originally Posted By: WellOiled
Not too long ago I did a Virgin cut and post on the CQ Red. All looked good except for the wide pleat spaces. This looks like an opportunity for a tear.
Perhaps, but I haven't seen the same incidences of tears with 94% efficient @ 20 microns Fram EG media than I have with the Purolator, Bosch, & Motorcraft media, despite wide pleat spacing on various cut open Fram EG's posted here. A risk factor, agreed, but not one commonly borne out on autopsy on the Fram EG, which is in all likelihood the same media used in the CQ Red. Only continued Champ made CQ red autopsies after use will establish a trend in how they perform in service.
FWIW, the Champ CQ Red looks like a Fram EG with metal end caps internally to me, and the CQ Blue looks like a Fram TG with metal end caps internally to me. Same "Engineered For" respective mileage recommendations and media efficiencies.
Thanks for the detailed reply.
Since I change oil hot, I don't see the loss of ADBV function. I also don't hear any startup clatter. I like your detection idea. That is good proof.
I suspect if the combo valve loses ADBV, it would also have impaired relief valve function too.
In case of eCore, The combo valve can not come in contact with the mounting nipple. If it did, it would be a major eCore failure.
For filters with separate ADBV and RV, the durometer of the ADBV can be tweaked by the manufacturer.
I agree that a used filter cut and post is the acid test.
If I lived North of Dallas, I would not use an eCore either. Not worth a bypass failure when the oil is cold.