I had posted on another automotive type forum several months ago about using the longer PF52 in place of the PF47 and hadn't logged into the site since then and just loged in and noticed my old thread had some very recent replies. This one was pretty interesting and Iwas hoping to get the guy to copme over here if he's not already.
Quote:
FWIW, I've considered doing this before, and working at a NAPA, I have access to all the specs of both the PF52 (WIX 51036, NAPA 1036), and the PF47 (WIX 51040, NAPA 1040). Here's my comparison, and the reason why I have stuck with the smaller filter:
PF47/51040/1040:
Thread Size - 18mm x 1.50
OD - 2.921"
Height - 3.404"
Gasket ID - 2.43"
Gasket OD - 2.734"
Micron Rating - 19
PF52/51036/1036:
Thread Size - 18mm x 1.50 (Check!)
OD - 2.921" (Check!)
Height - 4.828" (Bigger = More Capacity, which is what we want = Check!)
Gasket ID - 2.43" (Check!)
Gasket OD - 2.734" (Check!)
Micron Rating - 25 (DOH!)
The PF52 actually filters slightly less effectively as far as what it allows through the filter media. Granted, it's only 6 microns, but in tighter tolerance engines, I'm leary about trying it. If anyone has any experience or can quell my fears in some logical way, I'd love to hear it!
Not that it is that important but here's my reply,
Originally Posted By: mechanicx
Sorry, I haven't been on the forum in awhile. I had actually tried experimenting with the PF52 and it would not hold the extra 1/2 qt, and when you shut the car off it would be slightly overfilled and it only held about a 1/4 extra qt tops. I also figured the PF47 would fill on cold start faster, so I went back to the PF47s.
Thanks, that is great info about the micron rating. You'd think the smaller PF47 would have the less finer micron rating than the PF52 because it has less media and would clog faster but apparently not. The thing to keep in mind is that most ACDelco are made by Champion Labs and are becoming "E-core" designs and some ACDelcos were made by WIX and whoever else, so it's important that you are comparing the same manufacture specs.
Anyway, I frequent a forum that has an oil filter subforum with guys fanatical about oil filters and they'd probably love to have someone with your information onboard. I'd like to copy and paste the info in your post and link you over to that forum if you don't mind.
Quote:
FWIW, I've considered doing this before, and working at a NAPA, I have access to all the specs of both the PF52 (WIX 51036, NAPA 1036), and the PF47 (WIX 51040, NAPA 1040). Here's my comparison, and the reason why I have stuck with the smaller filter:
PF47/51040/1040:
Thread Size - 18mm x 1.50
OD - 2.921"
Height - 3.404"
Gasket ID - 2.43"
Gasket OD - 2.734"
Micron Rating - 19
PF52/51036/1036:
Thread Size - 18mm x 1.50 (Check!)
OD - 2.921" (Check!)
Height - 4.828" (Bigger = More Capacity, which is what we want = Check!)
Gasket ID - 2.43" (Check!)
Gasket OD - 2.734" (Check!)
Micron Rating - 25 (DOH!)
The PF52 actually filters slightly less effectively as far as what it allows through the filter media. Granted, it's only 6 microns, but in tighter tolerance engines, I'm leary about trying it. If anyone has any experience or can quell my fears in some logical way, I'd love to hear it!
Not that it is that important but here's my reply,
Originally Posted By: mechanicx
Sorry, I haven't been on the forum in awhile. I had actually tried experimenting with the PF52 and it would not hold the extra 1/2 qt, and when you shut the car off it would be slightly overfilled and it only held about a 1/4 extra qt tops. I also figured the PF47 would fill on cold start faster, so I went back to the PF47s.
Thanks, that is great info about the micron rating. You'd think the smaller PF47 would have the less finer micron rating than the PF52 because it has less media and would clog faster but apparently not. The thing to keep in mind is that most ACDelco are made by Champion Labs and are becoming "E-core" designs and some ACDelcos were made by WIX and whoever else, so it's important that you are comparing the same manufacture specs.
Anyway, I frequent a forum that has an oil filter subforum with guys fanatical about oil filters and they'd probably love to have someone with your information onboard. I'd like to copy and paste the info in your post and link you over to that forum if you don't mind.
