PF46 and pf59 oil filter question

[bobby5]

In the owners manual it says my truck uses a pf46 but went to outozone today and looked at them and it is a short model. In my old S-10 the manual said it used a short one but a longer oil filter came on it. Is the PF59 the longer filter for the 6.0 trucks, will it work?

[bobby5]

Just crawled under and looked and it has a PF44 oil filter. What the deal with that?

[GMCTech]

The PF46 is the "replacement" for the -59 with the newest oil life monitor system.

 

There needed to be a bit more flow control for the computer to accurately monitor some of the system.

 

As for the 44 it is a factory filter that is interchangable with the -46. I think that the -44 is used at the factory because it has a bit higher filtering capability for the initial material that comes out of a new motor.

 

You probably could verify it but cutting a -44 and a -46 open and comparing the density of the substrate.

 

 

Hope this helps.

[MS3DALE]

You can safely use a PF59,I do on my '04

[sirhuntalot1]

You can safely use a PF59,I do on my '04

 

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I use the 59 on my 2003 I was told more capacity and stops backflow of upper engine fluids to keep from harsh cold startups