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Old 01-30-2007, 02:17 PM   #11
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Quote:
Originally Posted by 1993 SLE
ill stick with my Proven Reliable and Recommended AC Delco PF 47
And you didn't 5 finger a few while you were here like I told you to...

I have a handfull of Puralators too

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Old 01-30-2007, 02:30 PM   #12
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Quote:
Originally Posted by corvettecrazy
Quote:
Originally Posted by 1993 SLE
ill stick with my Proven Reliable and Recommended AC Delco PF 47
I agree. Although I do like the extra filtering capacity of the PF-52 Since my engine needs all the filtering it can get.
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Old 01-30-2007, 03:04 PM   #13
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Quote:
Originally Posted by BillBoost37
The drain back valve is meant to help in horizontal mounting correct?
Or vertical Suppose to
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Old 01-30-2007, 06:29 PM   #14
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I thought mobil 1 used that new style with the plastic inner cage thing. Sorry this is no help....I just don't remember the name of the new style. I thought they were prone to failure.
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Old 01-30-2007, 07:33 PM   #15
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Quote:
Originally Posted by Logan
I thought mobil 1 used that new style with the plastic inner cage thing. Sorry this is no help....I just don't remember the name of the new style. I thought they were prone to failure.
Ecore.

I've heard good things. http://www.theautochannel.com/news/2...03/270769.html
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Old 01-30-2007, 07:35 PM   #16
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Quote:
Originally Posted by 95LHS
Quote:
Originally Posted by Logan
I thought mobil 1 used that new style with the plastic inner cage thing. Sorry this is no help....I just don't remember the name of the new style. I thought they were prone to failure.
Ecore.

I've heard good things. http://www.theautochannel.com/news/2...03/270769.html
I currently use them in my stepfather'* Intrepid and I plan on putting one on my truck this summer. No problems here.

EDIT: Whoops, hit quote instead of edit.
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Old 01-30-2007, 08:50 PM   #17
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Quote:
Originally Posted by Logan
I thought mobil 1 used that new style with the plastic inner cage thing.
Not yet anyway. They are made by Champion Labs though; the company that also makes Walmart'* Supertech filter, STP, AC Delco and some others. From what I've heard, the reason why AC Delco hasn't gone to the Ecore, is because GM has told Champion Labs to build the AC Delco filters with the traditional metal core.
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Old 01-31-2007, 02:15 PM   #18
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I personally would not use a e-core i don't trust them,not enough center core
to hold the media, i use M1 and P1,AC'* are to unpredictable on who makes them
now, but if you know what your looking for you can spot a champ made one but if
not you'll get a cheap Mexico made one(cheaply made)

here is a wright up from a guy i know who had big problems with a e-core
but not saying you will,


We've had a recent experience with the new Ecore design oil filter that we thought was worth sharing and that may be of interest to others. We purchased a fresh stock of oil filters this spring for our cars and trucks at a local AZ. We change our own oil, and we like to keep all of our GM cars and trucks all GM, just like the little sticker on the air cleaner housing on the old cars used to remind us to do, so we typically use only AC Delco products. We've been doing it for 29 years now and have been fortunate enough to not have had one problem in all those years. We've been using a PF1218 on all our big block Chevy motors with good results for probably the last 6-7 years. This spring we noticed the filters were slightly shorter in length, but the part number remained the same. It was the same part number we've known and trusted for years. So we did a oil change on the car this spring with the new filter. We had driven it for a good portion of the day, some of it at WOT for a few seconds, when suddenly the idle dropped to about 500 rpm, and then the motor shut down. We tried to restart it, but now it had a rapping sound coming from the #7 cylinder. We pulled the valve covers off, but everything was fine there. We trailered the car home and took the oil pan off. Things were looking OK until we got to the #7 & #8 rod bearing caps. Both caps were blackened. We pulled the motor from the car and disassembled it. The rod bearings were roasted. The main bearings were junk too. Bearing material was all over in the bottom of the oil pan. It looked like a classic oil starvation event. We then inspected the filter. It looked a little strange. The filter media was coming out of the oil exit hole. We turned it upside down to drain it, and found that the new Ecore had collapsed inside, allowing the filter media to come loose and plug the oulet. The motor had good oil pressure, 50-60lbs, all day long until it quit running. Total tally on the parts were 2 wrecked rods, a crankshaft with a crack in the center of the #7 rod journal, a complete set of main and rod bearings and a gasket set. The motor was barely 3 years old with less than average mileage. The motor had a PF1218 on it when we purchased it and it'* all we've ever used on it. Valvoline 20W-50 was the only oil it'* ever seen. We took the filter to a GM garage to see if they have had any similar experience. The first comment made by the parts manager was that the filter could be a counterfeit. He mentioned that there were some problems out there with fake parts. We got on the AC Delco website to check things out. There was a phone number to call. We were able to talk to a very nice lady who helped us to verify that it was in fact a genuine OE part. She told us it was manufactured by Champ Labs. We then went to the Champ Labs website and found their Technical Hotline. We again found a very helpful person who sent us a product retreival kit. We've gotten the oil filter sent back to Champ Labs, but have not heard back from them yet. They mentioned it takes up to 15 days. We're really curious about what happened because we're a little concerned about using another Ecore filter until we understand what happened to this one. This was our first experience with an Ecore design. Fortunately, we've had folks willing to help us get this far. We've read the information on the new Ecore design, and from an engineering perspective, we'd agree that the new design should produce a more efficient filter. All the logic behind the changes seemed to make sense. The brochure for the Ecore says the collapse strength is higher because the nylon Ecore is stonger, has a greater flow capacity from more open area and less filter media contamination than a steel core.

We'll update our post once we hear back from Champ Labs about the reason for the failure. We're hoping it was a rare manufacturing flaw. In the means time, we've got a big block Chevy to rebuild.



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Old 02-01-2007, 01:07 AM   #19
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That'* kind of an old story that originated on BITOG I think. The machinist that machined the motor had blocked off the bypass in the block, and didn't tell the customer he had done so. Therefore, instead of the oil bypassing the filter on cold start-up, it blew out the filter element.
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Old 02-01-2007, 06:52 AM   #20
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I'm still up in the air about the Ecore filter. I'm thinking that I would have more confidence with it if AC Delco were to start using it; until then, I'm tempted to shy away from it for now.
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