Why not use a Purolator oil filter instead?

[pgtr26112]

Lyle previously wrote: "Todd In the shark years the new manuals usally do not assign points any more as they leave it up to the judge to take the deduction based on the part in question.I would judge the oil filter on the Corvette with the five areas of originalty. They are configeration,date, completeness, installation,and finish. The 73-77 sheets have 5 points for the oil filter originality. I have not seen the 454 filter but I think it is smaller, not white, wrong logo, not complete. It is installed correct so it gets one point and any more you can make it fit one of the above five areas of originality."

If you only get 1 point w/ the PF-454 (or a newer/recent PF-25) service replacement why not use a Purolator? Sounds like it would get another point for white at least.

What makes the PF-454 "not complete" anyway?

[John H.]

Re: Why not use a Purolator oil filter instead?

The key word is "GM" service replacement, which eliminates Purolator (or anything else other than AC).

[pgtr26112]

Re: Why not use a Purolator oil filter instead?

Sure but look at the quote above. According to that analysis using a current PF-454 or recent (blue) PF-25, you get 1 point for correct installation. (Nothing for GM service replacement). Use a Purolator and based on what I'm reading you get 1 point for correct installation and 1 point for white. Unless of course the Purolator white is the wrong shade of white which I don't know. The Purolator may also be incomplete but I don't understand what is meant by that exactly.

[Patrick H.]

Re: Why not use a Purolator oil filter instead?

The key is that if you use ANY AC filter, you get ALL of your condition points. If you use brand "X", you get NONE. So, you forgot about the other 8 points available. 8 originality + 8 condition = 16 points.

GM or AC/Delco Service Replacement parts, as an NCRS rule of thumb, lose 50% of your originality points. You will not lose all of them. That would only occur if you had Brand "X" filter, or no filter was present.

Paint the Purolator the correct shade of blue, make a sticker for the filter that resembles the latest from AC, and see if it passes. Of course, it's a lot easier to just buy an AC one, or the reproduction white ones. Even at $20 eaach for those, it's not worth painting an oil filter.

Paatrick

[Jack H.]

Interesting topic....full deductions!

That was the focus of my last chapter newsletter article as I do see confusion on this during judging. For grins you might want to download a free copy of the Rocky Mountain Chapter's Sept/Oct 2003 newsletter (.PDF format) from our website (www.ncrsrmc.org) and see how far out in 'left field' my sermon was....

[pgtr26112]

Re: Why not use a Purolator oil filter instead?

Thanks Patrick,

The original filter was a white PF-25 in the early 70s - why not leave the purolator white rather than repaint it blue? - that was why I selected that example. Repainting the Purolator would only take it further from original configuration I would think.

So instead of what Lyle said of only 1 out of 5 points for a PF-454 - you are saying that you get 8 out of 16 points for a PF-454 and 0 out of 16 points for a Purolator even though it is (presumably) the correct shade of white from the early 70s?

I always 'thought' it was 50% for service replacements but Lyle seemed to cut it down to about 20% the contradicted the rule of thumb as I understood it anyway.

thanks,

[Harmon C.]

Re: Why not use a Purolator oil filter instead?

It's not complete because it is missing the metal to make it as long as the original filter. Lyle

[Harmon C.]

Re: Why not use a Purolator oil filter instead?

I think you will find that the points for an oil filter are now 5 for originality and 3 for condition. The old AC replacement got 50 % because it was about half right. The old 50% rule is not used much anymore. Now enters the 454 and it is not half right by the judging method of how much it is different than an original PF25.The one point is all I can find by using the five standards for judging originality. When a 454 shows up on the judging field I will let you know how many points it gets. With one point it can get all 3 condition points as it has met the 10% rule 4 points out of 8 and their is your 50%. If you can find an oil filter any brand, the correct size,paint it white, put the correct GM looking label or logo on it,and install it you will get all the points if the judge can't find anything that dosen't appear different than the original. Lyle

[Todd H 26112]

Re: Why not use a Purolator oil filter instead?

So if the length is why the filter is "incomplete" - then what is wrong the the PF-454s "configuration"?

Also I'm curious how a PF-35 or PF-1218 might be judged since they are longer than original (white) PF-25s - they are certainly more than complete by this standard are they not?

[Todd H 26112]

Re: Why not use a Purolator oil filter instead?

OK

So back to the original Purolator question - we know you are giving the PF-454 one point.

But how many points does a Purolator get?

I believe the Purolator equivalent to the PF-25 is approximately the same length if my memory serves and purolators come w/ a white finish. It's markings are red and blue but they of course say "Purolator...etc...". Presume we do NOTHING to it outside of install it right out of the box - would it's closer dimensions and color not give it an advantage over the PF-454 in points?

[Todd H 26112]

Re: Why not use a Purolator oil filter instead?

Lyle I forgot to ask this early but presuming the original is an early 70s white PF-25 as our standard - are you saying that a later service replacement (blue) PF-25 which was available until recently would be BETTER than the current PF-454 as far as points go? (My modern 'blue' PF-25 stockpile is down to just about 'gone')

thanks,

[Harmon C.]

Re: Why not use a Purolator oil filter instead?

I would suggest that if you are planing on having a car judged that you buy the Parogon reproduction for$ 20. and install it. Configeration and completeness in some cases may be the same. Lyle

[Harmon C.]

Re: Why not use a Purolator oil filter instead?

Yes

[Todd H 26112]

Re: Why not use a Purolator oil filter instead?

So we should deduct a point for configuration based on LENGTH and then deduct a point for completeness based on LENGTH. You called each out separately w/ respect to teh PF-454 previously - I would have guessed that to be two deduction for the same thing but I didn't understand that length is both a configuration AND a completeness issue.

Thanks for the advice, but I'm not referring to anything specific to me - just want to understand how judging works w/ respect to service replacement or aftermarket oil filters. Afterall not everyone buys reproduction Paragon filters.

thanks,

[Harmon C.]

Re: Why not use a Purolator oil filter instead?

It would be easy to tell it was not a GM part so your points went bye-bye.