A friend of my son was driving to work the other day when his truck lost all oil pressure. He shut it down and checked the oil. Nothing looked amiss. So he cranked it back up. Oil pressure jump to normal but immediately started falling back to zero. He shut it down and had it towed to the dealer.
The dealer checked it out, changed the oil and filter and test drove it. No addition problems. They cut the filter apart and found that the interior of the filter had collapsed.
It was a Mobile 1 filter from Walmart with less than 3000 miles on it. The engine is a 5.3 Vortec.
As far as I know it is a outlier and not a trend. If you run them keep an eye on your oil pressures.
maj75
HalfDork
10/24/19 8:12 p.m.
Great if you have an actual oil pressure gauge, unfortunately most don’t anymore.
maj75 said:
Great if you have an actual oil pressure gauge, unfortunately most don’t anymore.
Yeah, but you should still get a light or some other kind of warning.
M1 filters are generally well-regarded, but the world is imperfect place. Good thing there was no permanent damage.
ShawnG
PowerDork
10/24/19 9:09 p.m.
Might have been the relief valve in the oil pump sticking.
Toyota T-series engines were good at that. The valve would stick on cold starts and balloon the case on cheaper filters.
Sounds like the media collapsed, like what happens when you abuse an Ecotec.
You'd think the safety bypass relief valve would have done its thing and still allowed oil to flow, but, I guess the filter was already defective.
In reply to Tom_Spangler :
I've run the M1 filters in a bunch of stuff without issue. Then again I've run a bunch of Fram filter without issue as well. At a guess it's a manufacturing error and will never happen again.
Walmart is pretty good about getting manufacturers to build low cost versions of products so they can sell cheaper than everyone else. I wonder if that isn't the case here. Might be interesting to cut open a Walmart version and a FLAPS version and compare.
In reply to Toyman01 :
Great point on Walmart, they absolutely do that.
My V70 XC Turbo did a thing, after it's first oil change by me the engine knocked, oil light flickered for a few days. I got all pissed that I just bought someone elses problem, then everything seemed fine. At the next oil change I found the filter had self destructed.
In reply to Toyman01 :
HEad over to Bob is the Oil guy and ask there about your theory on Wallyworlds version being different from a regular Mobil 1 filter. That's the sort of thing they'd love to dig into.
5.3 with variable cylinder whatsit? The screen under the oil sender is plugged. Very likely the problem will be back shortly.
Upside, the only part of the engine without pressure is the lifter control manifold.
I had this same thing happen last winter on my 2012 Silverado w/ the 5.3 and an AC Delco filter. Wix/Napa Gold was out of stock when I last changed the oil. It failed in a similar manner wtih a significant loss of oil pressure. After an oil change and putting a new filter on, the oil pressure was back where it should be. I drove another 20K miles without any additional issues.
_
Dork
10/25/19 12:03 p.m.
Adrian_Thompson said:
In reply to Toyman01 :
HEad over to Bob is the Oil guy and ask there about your theory on Wallyworlds version being different from a regular Mobil 1 filter. That's the sort of thing they'd love to dig into.
The fact these guys keep typing "M1" probably means they are already members of that neurotic website.
Suprf1y
UltimaDork
10/25/19 12:14 p.m.
In reply to _ :
I was going to say, the smart thing to do would be to post this on BITOG 
When Wally World gets a manufacturer to make a cheaper product, that cheaper product/version will have its own UPC, SKU, brand, part number, etc. It is not going to "look" identical to the full on version. And in general, for the private label stuff, they specify good quality.
An exception: When I worked in the CSD business at like the 3rd largest bottler in the country, WMT asked us to make a really bad 2L soda. They specified that they wanted it to taste bad. And be super cheap. Now, private label 2L CSD is sold at such a slim margin already that making it cheaper is not an easy task. You can play with the sweetener and the flavoring a bit, but that's it. Water is water, labels are labels, bottles are bottles, etc. Anyway, we made a really bad 2L CSD. I forget the brand, but I think it sold as "Blue" and was blue. Might have been a few other flavors too, but I recall the blue one. Walmart wanted to have an ad in their Tab that said "2L Soft Drinks for 47 Cents!!" or something like that. But they didn't want to sell any. They just wanted people to look at that and think that was a super deal and come in the store and shop for other stuff.
Streetwiseguy said:
5.3 with variable cylinder whatsit? The screen under the oil sender is plugged. Very likely the problem will be back shortly.
Upside, the only part of the engine without pressure is the lifter control manifold.
*DOD failure intensifies*
06HHR
Dork
10/25/19 12:38 p.m.
Dr. Hess said:
When Wally World gets a manufacturer to make a cheaper product, that cheaper product/version will have its own UPC, SKU, brand, part number, etc. It is not going to "look" identical to the full on version. And in general, for the private label stuff, they specify good quality.
An exception: When I worked in the CSD business at like the 3rd largest bottler in the country, WMT asked us to make a really bad 2L soda. They specified that they wanted it to taste bad. And be super cheap. Now, private label 2L CSD is sold at such a slim margin already that making it cheaper is not an easy task. You can play with the sweetener and the flavoring a bit, but that's it. Water is water, labels are labels, bottles are bottles, etc. Anyway, we made a really bad 2L CSD. I forget the brand, but I think it sold as "Blue" and was blue. Might have been a few other flavors too, but I recall the blue one. Walmart wanted to have an ad in their Tab that said "2L Soft Drinks for 47 Cents!!" or something like that. But they didn't want to sell any. They just wanted people to look at that and think that was a super deal and come in the store and shop for other stuff.
Wow, that's just a whole other level of duplicity. No wonder WalMart got so big...
