Difference between PF46 and PF48 oil filter?
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 3,488
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From: Long Island NY
Difference between PF46 and PF48 oil filter?
This question already exists in C6 General, but hidden within a post with different title. No answers yet.
Can someone describe the difference between the PF46 filter (as used on the LS2) and the PF48 filter (as reportedly used on the LS7)?
It has been reported that GM is now using the PF48 as opposed to the PF46 on the new 2007 LS2s... wondering why.
Thanks.
Can someone describe the difference between the PF46 filter (as used on the LS2) and the PF48 filter (as reportedly used on the LS7)?
It has been reported that GM is now using the PF48 as opposed to the PF46 on the new 2007 LS2s... wondering why.
Thanks.
Pro
Joined: Nov 2005
Posts: 672
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From: Sapulpa Oklahoma
http://www.z06vette.com/forums/showthread.php?p=931606
I don't think the PF46 has the "internal" bypass valve.
I don't think the PF46 has the "internal" bypass valve.
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 3,488
Likes: 27
From: Long Island NY
Thanks. Interesting. Supposedly the PF48 has a different thread pitch than the PF46 so they cannot be interchanged.
I really wonder why the new LS2 gets the PF48 instead of the PF46.
I really wonder why the new LS2 gets the PF48 instead of the PF46.
Race Director
Joined: May 2001
Posts: 15,324
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From: Guelph, Ontario
Originally Posted by dbradley
http://www.z06vette.com/forums/showthread.php?p=931606
I don't think the PF46 has the "internal" bypass valve.
I don't think the PF46 has the "internal" bypass valve.
Filters that go on GM cars do not need an internal bypass valve, since GM puts the bypass directly on the oil filter base on the engine block.
Safety Car
Joined: Feb 2000
Posts: 4,977
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From: Massachusetts , USA,
Originally Posted by Vet
Thanks. Interesting. Supposedly the PF48 has a different thread pitch than the PF46 so they cannot be interchanged.
I really wonder why the new LS2 gets the PF48 instead of the PF46.
I really wonder why the new LS2 gets the PF48 instead of the PF46.
The Dog.
Last edited by StrayDog; Jul 31, 2006 at 01:08 PM.
