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This burst test blew the gasket. As it shows the filter moves away from the thread making it worse for the gasket to seal.
When did Fram go off the rails?
- Thread starter Patman
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More like 300-400 microns, or more.
It is when you don't expect more than 12 PSI across your filter element (where you set the bypass valve).
I was there. I was driving a "Dodge" Challenger with the 2.6L engine.
Is not an "internet story" because the internet didn't exist back then.
There's a difference between the pressure inside the can, verses the dP across the media. You could have 300 PSI in the can, and only 12 PSI dP across the filter bypass valve).
Sure the filter wasn't double gasketed? Stories can still get on the internet later down the line, lol.
Yes, thanks for making my point.
3rd party oil filter manufacturers only expect the pressure across the filter element to be borne by the enclosure. For the 1978-ish Mitsubishi 2.6L the enclosure was at full oil pump pressure.
Absolutely certain Fram started marking an updated filter P/N as being safe for the Mitsubishi high pressure. Was black text just above the rolled seam. Even Mopar's filters were so marked.
What point? You don't seem to understand the difference between the oil pressure produced my the pump inside an oil filter, and the delta pressure across the media produced by the oil flow & viscosity. Did you watch the video in post 21?
What was the "full oil pressure" of that 2.6L engine?
You are not listening in how I fully understand the difference.
You don't seem to understand if full pump pressure is delivered to the filter then bled off for bearings, cylinder jets, etc, and that is where the oil pressure gauge is installed, that the pressure between oil and the outside world is the full pump pressure.
There is some pressure drop across the filter element. But there is a great pressure drop feeding the bearings.
How many times have I said "60 PSI"?
Back in the early 2000s I worked as a lube "tech" for Sears.
The oil filters they used were hardly thicker than beer cans. Had to be careful screwing them on to not crush them.
No idea who made them for Sears.
They were plain white with nothing but a number that would pull up in the computer system we used (green screen DOS program).
The sales crew would enter the vehicle info and it would pull up on our end the filter # and qts of oil. Nearly everything got 10w30.
Made ~$13/hr, which was pretty good considering min wage was $5.65
Per your post 23 (read it again), I don't think you do understand the difference. Otherwise, post 23 needs clarification.
Of course the oil pressure is highest at the pump outlet. And the oil pressure sensor will be located somewhere close to the down stream of the filter ... so what you see on the dash gauge is basically what the pressure is inside the filter.
Like said, 60 PSI is not "high pressure".
Did you hear if any of them "burst" in use? Most oil filters today are still pretty thin, and can also get damaged if not installed correctly. Been here a long time, and never seen anyone ever report their filter "bursting". Slightly leaking, yes ... "bursting", never. Only instances close to a "bursting" filter is if someone double-gasketed it (ie, left the old stuck base gasket on the filter mount).
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After Fram created the OG wire backed Ultra they were at their pinnacle until the company was bought out by First Brands which has ushered in a downward spiral in quality. I went from trusting Fram as much as any parts manufacturer before First Brands to not trusting them whatsoever afterwards.
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That is wild... would be awesome to see a member do a cut open on one of these here...I already searched on on ebay. Found some white can ones, but they are not plain white. One of them is already dented though! lol
None when.I worked there.
A friend i worked with had a Tacoma, early 2000s model that split the filter when he fired it up and pumped out most of the oil before he noticed.
Was winter, not terribly cold, maybe -20* if that.
Haven't seen it happen at work were it gets -50* though normally stuff is plugged in or left running. Or thawed by pushing in a shop or using a big heater if it's been sitting.
I don't recall them having anything but a part number but it's been over 20 years so I may be misrembering.
I know I felt ashamed using them as they were bottom of the barrel.
We'd sometimes not have a filter and get Wix from Napa or a customer would supply a filter and they'd feel like a brick in comparison.
Was rarely not busy there, I worked 0800-1300 (was part time, I worked 2300-0700 at another job) and often did 20+ oil changes in that period, plus did tires and batteries.
This past summer I got a couple bad Frams. Unfortunately I did not document them with photos as I wasn't aware of a brand-wide issue with Fram at the time. I got a Fram Titanium with gacked threads from Advance Auto. I believe it was a 9688. I got a Fram Force that was definitely a 9688 that had no gasket right out of the box. I also noticed on several Fram Forces that there was dusty, orange paint overspray inside the can. The gacked threads were the last straw for me. Pretty sure I still have one or two on the shelf. I won't use them unless it is for a flush or something.
I’d love to cut them open and post them for you. PM me if interested.
