PF-25 Oil Filters

[Mark D.]

Re: PF-25 Oil Filters

Just to introduce another wrinkle to this thread and before some might end up paying big bucks on an original PF25, isn't the current thinking that the PF29 may have been the assembly line oil filter for the 1968 and early 1969 model years for Corvette? I remember Joe Lucia did a significant amount of research on this.

Regards,

Mark

[Edward S.]

Re: PF-25 Oil Filters

I think I learned more about PF-25's than I thought was out there. Thanks everyone.

[Dave S.]

Re: PF-25 Oil Filters

Not to beat this thing to death but I'll add that I have a white PF-35 in a 1972 box that is not embossed. I am one who thinks the BEST WAY.........embossing ended sometime in 1970. I think possibly early 71's may have had embossing but it disappeared around the end of CY 1970. The dates on the original boxes lead me to that conclusion. Just my opinion.
Possibly the PF-35's were embossed/unembossed the same as the PF-25's
Mark,
I am under the same impression about the PF-29's. I guess the next 68/69 judging Guide will clarify that.

[Jeffrey S.]

Re: PF-25 Oil Filters

At the Novi regional when my '69 was judged, I got a deduct because the judge said I had a white PF25 filter which he said was incorrect. When I pointed out that it was a PF29, they reversed the deduction explaining that it is now accepted that the PF29 was installed on all '69's. I purchased a repro PF29 from Richard Fortier.
Jeff

[Jeffrey S.]

Re: PF-25 Oil Filters

I also have several Canadian PF25's. While they are white and have a blue and red AC logo, half the writing is in French and half in English.
Jeff

[Joe L.]

Re: PF-25 Oil Filters

Not to beat this thing to death but I'll add that I have a white PF-35 in a 1972 box that is not embossed. I am one who thinks the BEST WAY.........embossing ended sometime in 1970. I think possibly early 71's may have had embossing but it disappeared around the end of CY 1970. The dates on the original boxes lead me to that conclusion. Just my opinion.
Possibly the PF-35's were embossed/unembossed the same as the PF-25's
Mark,
I am under the same impression about the PF-29's. I guess the next 68/69 judging Guide will clarify that.

Dave-----


I don't think the PF-29's were embossed. I have several original PF-29's and none are embossed. Plus, the PF-29 had a rather short life span. It replaced the PF-11 sometime around 1967-68 and it was discontinued when the PF-25 was introduced sometime during 1969. I feel quite certain that other filters using the same "shell" as the PF-25 (i.e. PF-24, etc.) probably had the embossing, too. As far as the longer PF-35, I don't know. I'm not even sure when that filter was released. It may have been after the embossment period ended.

[Patrick H.]

Re: PF-25 Oil Filters

Dave-----


I don't think the PF-29's were embossed. I have several original PF-29's and none are embossed. Plus, the PF-29 had a rather short life span. It replaced the PF-11 sometime around 1967-68 and it was discontinued when the PF-25 was introduced sometime during 1969. I feel quite certain that other filters using the same "shell" as the PF-25 (i.e. PF-24, etc.) probably had the embossing, too. As far as the longer PF-35, I don't know. I'm not even sure when that filter was released. It may have been after the embossment period ended.

When do you think the PF-11 was used? And was it used on Corvettes?

Patrick

[Joe L.]

Re: PF-25 Oil Filters

At the Novi regional when my '69 was judged, I got a deduct because the judge said I had a white PF25 filter which he said was incorrect. When I pointed out that it was a PF29, they reversed the deduction explaining that it is now accepted that the PF29 was installed on all '69's. I purchased a repro PF29 from Richard Fortier.
Jeff

Jeff-----


I'm not sure when during the 1969 model year that the PF-25 replaced the PF-29. However, one thing I'm certain of: whichever of these filters was installed on any given 1969 it was WHITE. Period.

[Lyndon S.]

Re: PF-25 Oil Filters

I have seen the large white PF 35s on eBay, none that I could tell had the embossing .

___________

Kelly

[Joe L.]

Re: PF-25 Oil Filters

When do you think the PF-11 was used? And was it used on Corvettes?

Patrick

Patrick-----


I don't think that the PF-11 was ever used on a Corvette (even though the drawing of the filter in the AIM's from 1968 to 1976 depicts an apparent PF-11). The PF-11 was first used for Chevy II applications and some 6 cylinder applications and was replaced by the PF-29 by the time that Corvettes got spin-on filters. I think there was even a predecessor to the PF-11 but I've forgotten what it was.

[Dave S.]

Re: PF-25 Oil Filters

Joe,
I agree that the PF-29's were not embossed. I have seen quite a few and never have seen an embossed one.
The Canadian PF-25's are easy to detect as the wording is upside down.

[James F.]

Re: PF-25 Oil Filters

The PF 25 'classic' reproduction in white is a very nice filter with the Duraguard internals for modern filtering. My local Chevy dealer was able to find them through his parts locator. Charged me $4 each just last week.

[Lyndon S.]

Re: PF-25 Oil Filters

Man you got a deal on those , my dealer wanted 14 dollars each for the new reproductions .
_________
Kelly

[Jeffrey S.]

Re: PF-25 Oil Filters

I have seen original PF24's and they are also embossed.
Jeff

[Terry M.]

Re: PF-25 Oil Filters

Man you got a deal on those , my dealer wanted 14 dollars each for the new reproductions .
_________
Kelly

I think (without looking it up) I paid in the teens for the white PF25 reproductions from Chevroelt Performance Parts. $4 is an outstandign deal. Stock up on them at that price.