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Supercup · 06-08-2020, 07:41 PM

OP what oil filter are you using? I'm curious to see if this is Oil filter related -I know the PF64 has more holes on it than the UPF48R. I know on another thread there is a comparison between these two filters and just appearance tells me that the PF64 is less restrictive. Or could be nothing.

Edit: see post #31 for oil filter pics:
http://www.camaro5.com/forums/showth...ht=pf64&page=2

dardbrown - this is from prior page of this thread. I had P64 first time I went to track - no overheating issues - 2nd time I went to dealer week before to change all fluids - they installed a 48R - insisted it was what was used on Z06, was superior filter and I should use it, not P64. Went to track - had over heating issues in mid day session - same track, similar daytime temps - all else stock (so full coolent, no water or water wetter).

Next time I will follow the GM track sheet and use a P64, not the dealers recommendation - in that post from prior page, link #31 easy to see photos of more holes that are larger on the bottom of P64, so better flow - even if not "better" filtering - so the mechanic made the better recommendation for the "street" but GM track sheet for Z/28 makes better recommendation for "track".

I just ordered some P64's on Amazon Prime for $6.46 each (with rebate they are $4 +/-) - free shipping. GM parts direct had them for $4 +/- - but $72 in shipping!

Note part number for P64 was 12640445 - then 12696048 - so at dealer 2nd part number is what they will look up - but online a lot of times you will see the first part number on the filter or the box. Also note the 48R is the filter listed for our cars by GM.

I will go back to P64 and see if that improves temp situation next track day. Good luck

06-08-2020, 07:41 PM	#30
Supercup Life Is Short Enjoy It! Drives: Former Owner 15 Z/28 #934 Join Date: Sep 2016 Location: S. Cal Posts: 897	OP what oil filter are you using? I'm curious to see if this is Oil filter related -I know the PF64 has more holes on it than the UPF48R. I know on another thread there is a comparison between these two filters and just appearance tells me that the PF64 is less restrictive. Or could be nothing. Edit: see post #31 for oil filter pics: http://www.camaro5.com/forums/showth...ht=pf64&page=2 dardbrown - this is from prior page of this thread. I had P64 first time I went to track - no overheating issues - 2nd time I went to dealer week before to change all fluids - they installed a 48R - insisted it was what was used on Z06, was superior filter and I should use it, not P64. Went to track - had over heating issues in mid day session - same track, similar daytime temps - all else stock (so full coolent, no water or water wetter). Next time I will follow the GM track sheet and use a P64, not the dealers recommendation - in that post from prior page, link #31 easy to see photos of more holes that are larger on the bottom of P64, so better flow - even if not "better" filtering - so the mechanic made the better recommendation for the "street" but GM track sheet for Z/28 makes better recommendation for "track". I just ordered some P64's on Amazon Prime for $6.46 each (with rebate they are $4 +/-) - free shipping. GM parts direct had them for $4 +/- - but $72 in shipping! Note part number for P64 was 12640445 - then 12696048 - so at dealer 2nd part number is what they will look up - but online a lot of times you will see the first part number on the filter or the box. Also note the 48R is the filter listed for our cars by GM. I will go back to P64 and see if that improves temp situation next track day. Good luck Last edited by Supercup; 06-08-2020 at 08:20 PM.