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oil filter question #4474264
07/29/17 10:16 PM
07/29/17 10:16 PM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline OP
FermeLaPorte  Offline OP
Joined: Jul 2017
Posts: 542
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.
Re: oil filter question [Re: FermeLaPorte] #4474269
07/29/17 10:41 PM
07/29/17 10:41 PM
Joined: Jun 2003
Posts: 17,817
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,817
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.

Last edited by Chris142; 07/29/17 10:42 PM.

02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: oil filter question [Re: FermeLaPorte] #4474292
07/30/17 12:05 AM
07/30/17 12:05 AM
Joined: Jul 2008
Posts: 684
Maryland USA
rubberchicken Offline
rubberchicken  Offline
Joined: Jul 2008
Posts: 684
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.



Re: oil filter question [Re: FermeLaPorte] #4474372
07/30/17 05:17 AM
07/30/17 05:17 AM
Joined: Oct 2008
Posts: 12,640
The Old North State
Sayjac Offline
Sayjac  Offline
Joined: Oct 2008
Posts: 12,640
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.

Re: oil filter question [Re: Sayjac] #4474375
07/30/17 05:23 AM
07/30/17 05:23 AM
Joined: Sep 2013
Posts: 10,680
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,680
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 202k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 153k Synpower 5w30 Supertech ST3980 (Ecore)

Re: oil filter question [Re: dlundblad] #4474378
07/30/17 05:53 AM
07/30/17 05:53 AM
Joined: Oct 2008
Posts: 12,640
The Old North State
Sayjac Offline
Sayjac  Offline
Joined: Oct 2008
Posts: 12,640
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

Re: oil filter question [Re: FermeLaPorte] #4474555
07/30/17 09:28 AM
07/30/17 09:28 AM
Joined: Dec 2006
Posts: 19,121
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 19,121
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 5W20

Re: oil filter question [Re: FermeLaPorte] #4474557
07/30/17 09:30 AM
07/30/17 09:30 AM
Joined: Dec 2006
Posts: 19,121
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 19,121
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 5W20

Re: oil filter question [Re: FermeLaPorte] #4474936
07/30/17 06:20 PM
07/30/17 06:20 PM
Joined: May 2007
Posts: 7,625
Indianapolis, IN
dnewton3 Offline
dnewton3  Offline
Joined: May 2007
Posts: 7,625
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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