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#4474264 - 07/29/17 11:16 PM oil filter question
FermeLaPorte Offline


Registered: 07/25/17
Posts: 472
Loc: Texas (south)
Hello, people-
Today I changed my oil and I saw this little plastic thing in it. The old filter also had it. What is it's function?

Thx
It's a m-108a ExxonMobil
_________________________
Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.

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#4474269 - 07/29/17 11:41 PM Re: oil filter question [Re: FermeLaPorte]
Chris142 Online   content


Registered: 06/05/03
Posts: 16825
Loc: Deplorable in apple valley, ca
Bypass valve. If the oil is flowing faster than the filter can flow it will open to let oil bypass.


Edited by Chris142 (07/29/17 11:42 PM)
_________________________
02 Wrangler durablend 10w40
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Z400 castrol T 10w40
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#4474292 - 07/30/17 01:05 AM Re: oil filter question [Re: FermeLaPorte]
rubberchicken Offline


Registered: 07/07/08
Posts: 399
Loc: Maryland USA
Here are some pics of a M1-108 cut open that I had on the shelf. The blue button is part of the bypass valve as Chris142 already mentioned.



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#4474372 - 07/30/17 06:17 AM Re: oil filter question [Re: FermeLaPorte]
Sayjac Offline


Registered: 10/13/08
Posts: 12268
Loc: The Old North State
Classic Champ Labs blue button bypass. Same as used on current STP 6607 equivalent application sold at local AZs. Only it uses nitrile adbv instead of silicone in the M1 shown.

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#4474375 - 07/30/17 06:23 AM Re: oil filter question [Re: Sayjac]
dlundblad Offline


Registered: 09/30/13
Posts: 10045
Loc: Indiana
Originally Posted By: Sayjac
Classic Champ Labs blue button bypass. Same as used on current STP 6607 equivalent application sold at local AZs. Only it uses nitrile adbv instead of silicone in the M1 shown.


This whole time I thought AZ's STP filters were Purolator. When did the change happen?
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4474378 - 07/30/17 06:53 AM Re: oil filter question [Re: dlundblad]
Sayjac Offline


Registered: 10/13/08
Posts: 12268
Loc: The Old North State
^^^^^AZ STP blue cans have never been Purolator made, at least in this area. Before the Fram/Champ alliance, always all Champ Labs made, very similar to the old WM Super Tech line. Then after Fram-Champ (fram filtration) got together, they became a combination of Fram/Champ filters. Now after the fram-champ separation at AZ here at least, they have remained as such. That explained in this recent post HERE

Several Puro made AZ STP blue can anecdotes have shown up here in last year or two. Iirc, at one point the fram rep said they were all going to Puro made, then early this year said that they were all being offshored. Neither has happened.

To topic bypass, if OP interested in a little more detailed info on bypass function, Baldwin link basic explanation of function. It appears to show a thread end bypass vs dome end in topic but idea is the same. Just bypass opens at dome end in topic filter.

http://www.baldwinfilter.com/TechTips201409.html

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#4474555 - 07/30/17 10:28 AM Re: oil filter question [Re: FermeLaPorte]
aquariuscsm Offline


Registered: 12/30/06
Posts: 18173
Loc: Dallas,Tx USA
My Honda OEM has that very same thingy on the bottom of it.
_________________________
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 0W20



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#4474557 - 07/30/17 10:30 AM Re: oil filter question [Re: FermeLaPorte]
aquariuscsm Offline


Registered: 12/30/06
Posts: 18173
Loc: Dallas,Tx USA
I like the looks and feel of the M1 filters. They seem to be very neat and precisionly (is that a real word? haha) put together. If I go aftermarket on my Honda,the M1-110 is what I'll be using.
_________________________
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 0W20



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#4474936 - 07/30/17 07:20 PM Re: oil filter question [Re: FermeLaPorte]
dnewton3 Offline



Registered: 05/14/07
Posts: 7392
Loc: Indianapolis, IN
I'd like to point out the lack of comments regarding two things:
Leaf spring.
BP construction.

If this were a Fram someone would whine about the type of button bypass, and the leaf spring. It's not a Fram, so these go unchallendged?

To be clear, I think the leaf spring and button BP are perfectly acceptable. i am not complaining on that plane.

I just find the lack of complaints for the very same features which exist in another product so often ridiculed a bit of hypocrisy by some.
_________________________
The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money

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