Oil filter.......different sizes???
10-08-2007, 06:55 PM
#1
Safety Car
Thread Starter
Oil filter.......different sizes???
....it happened again......I payed to have my oil/filter changed and got into the old discussion about how much oil is correct for an LT4......
After the discussion with the service writer the mechanic puts in about 5-1/2 quarts!!!!! LT4BUD of course goes ballistic because one thing for sure is this is an overfill!!!
The mechanic stands his ground and says he put in 5-1/2 because that is what it took to reach the full mark on the dipstick...he then tells me that the oil filter he removed was incorrect (I don't know the number, but it was a Fram that I put on) and the one he put on was larger and took more oil..
So my question is what oil filters are you folks using and do proper filters exist with different capacities???
BTW This was true in the past for another non-Vette car I owned...two size filters, one took 1/2 quart and one took 1 quart..
After the discussion with the service writer the mechanic puts in about 5-1/2 quarts!!!!! LT4BUD of course goes ballistic because one thing for sure is this is an overfill!!!
The mechanic stands his ground and says he put in 5-1/2 because that is what it took to reach the full mark on the dipstick...he then tells me that the oil filter he removed was incorrect (I don't know the number, but it was a Fram that I put on) and the one he put on was larger and took more oil..
So my question is what oil filters are you folks using and do proper filters exist with different capacities???
BTW This was true in the past for another non-Vette car I owned...two size filters, one took 1/2 quart and one took 1 quart..
Last edited by LT4BUD; 10-08-2007 at 08:09 PM.
10-08-2007, 07:09 PM
#2
Melting Slicks
I'm not sure about the LT engines, but I know most older Chevy small blocks take a Fram PH 30. The PH 13 filter has the same threads, but is a little bit taller and holds a little more oil. The PH 13 was usually used on trucks and vans, but I've used them in place of the 30 as well. Just using the Fram part #'s as an example.
I've been using AC Delco lately, but I forget the part # off hand.
10-08-2007, 08:14 PM
#5
Tech Contributor
PF52 is the stock filter.
5.5qts sounds like a bit much. However, the easiest thing to do is go check the level. If it's at the full mark, you're fine.
Regarding different filters...yes, you can use filters with different capacities. I use a filter that is shorter than the stock filter because I have a sandwich adapter that fits between the filter and the factory offset adapter. The sandwich adapter is for the lines that run to my aftermarket oil cooler.
5.5qts sounds like a bit much. However, the easiest thing to do is go check the level. If it's at the full mark, you're fine.
Regarding different filters...yes, you can use filters with different capacities. I use a filter that is shorter than the stock filter because I have a sandwich adapter that fits between the filter and the factory offset adapter. The sandwich adapter is for the lines that run to my aftermarket oil cooler.
10-08-2007, 08:17 PM
#6
Race Director
I've been using AC Delco PF52 oil filters, along with 5 quarts of Mobil 1 10w 30 oil for my LT4.
10-08-2007, 08:18 PM
#7
Team Owner
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Location: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
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Are the filters interchangeable?
Tall vs. Short and L98 vs LT1?
Tall looks like it'd filter better with much less pressure loss.
Tall vs. Short and L98 vs LT1?
Tall looks like it'd filter better with much less pressure loss.
10-08-2007, 08:25 PM
#8
-----
I only use K&N oil filters on my LT-4. They're great filters and they have that 1-inch hex head built into the bottom of the filter which makes removal a snap. I use slightly less than 5 qts in the crankcase, probably 4-3/4 qts on average. 
Bo
Bo
Last edited by Ajaste; 10-08-2007 at 08:56 PM.
10-08-2007, 08:27 PM
#9
Safety Car
Thread Starter
I'm not sure about the LT engines, but I know most older Chevy small blocks take a Fram PH 30. The PH 13 filter has the same threads, but is a little bit taller and holds a little more oil. The PH 13 was usually used on trucks and vans, but I've used them in place of the 30 as well. .
PH3980.........Extraguard
TG3980.........Toughguard
DG3980.........Doubleguard
XG3980.........X2
HM3980.........Highmileage
seems these would all be the same....the mechanic did mention a filter that was also used in truck applications???
????
Purolator lists PL24011 & L24011
Last edited by LT4BUD; 10-08-2007 at 10:14 PM.
10-08-2007, 08:33 PM
#10
Le Mans Master
Seriously.... go check your oil and if it is overfilled, drain a little out. Then NEVER let anyone else change your oil ever again!
10-08-2007, 08:41 PM
#11
Melting Slicks
LT4Bud, I'm not familiar with the PH 3980. Obviously that's a different filter # than the small blocks & L98s take. It's possible your filter also has a cousin that's the same, just longer, kind of in line with what your mechanic was saying. If that's the case, I don't know the part #.
10-08-2007, 09:38 PM
#14
Tech Contributor
If you remove the cats (ie to install LT headers) and the adapter, the L98 adapter and filter will work just fine.
The shorter filter I use is the PF47, it's ~1.5" shorter than the PF52 which works well with my sandwich adpater that is roughly 1.5" thick.
10-08-2007, 10:01 PM
#15
Le Mans Master
I did mine this weekend. K&N HPS-2001 with 5qts Mobil1 5w-30
