AC Delco PF 25 vs PF 454

[Baldie88]

I've got a stock L98 coupe. I always use AC Delco filters. Last time I went to Auto Zone to get one there was a sign that said the regular PF 25 filters were discontinued and to use PF 454. I changed the oil this weekend and noticed the PF 454 is more than an inch shorter than the old PF 25. What's going on? ad Makes me wonder how this filter is going to do the job since there obviously has to be less filter media. Any recommendations on a different AC Delco that works or do I need to step up to something like a Mobil 1? :confused

Baldie88

 

[vader86]

I know that PF25 and PF35 work for us. I thought the 35 was the longer one.


However, I dont use either anymore, I went up to K&N HP2002 filter. Sometimes i use the M1-202 Mobil filter.

 

[cosmo]

they make a shorter oil filter for my 91 and it pushes the oil up on the dip stick probely the same thing

 

[tnovot]

I know that PF25 and PF35 work for us. I thought the 35 was the longer one.

The PF 35 has the same diameter but is a little longer than the PF 25. It has the same size threads and gasket but holds more oil - almost a quart. You can use the 35 anyplace you have the clearance for the extra length. I use them on both my '84 and my T-Bucket with a 350.
Always a good idea to fill with oil before spinning back on.
Terry