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Fram PH/TG/XG8A + HP1 flow rate #5104348 05/13/19 03:05 PM
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RDY4WAR Offline OP
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I sent a request to Fram about the flow rates of the PH8A, TG8A, XG8A, and HP1 filters. I was curious how the new staff there might respond. Here is the response I received from them.

Per our engineering team all filters are tested at ISO 4548-12 test standards. The test is performed with MIL-H-5606 oil at 40 C temperature. The filters are only tested at 3GPM per test requirements. Here are the restriction results for each model:



PH8A: 1.8 PSI @ 3GPM

TG8A: 1.8 PSI @ 3GPM

XG8A: 1.5 PSI @ 3GPM

HP1: 1.45 PSI @ 3GPM



A search for MIL-H-5606 technical properties showed a KV40 of 13.8 cSt.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104358 05/13/19 03:17 PM
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CR94 Offline
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Interesting reply, and surprisingly straightforward.
Thanks!


2011 Toyota Prius now at 104K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104365 05/13/19 03:21 PM
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555 Offline
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Thanks for the post. I use an HP-1 on the Mustang and was always curious.


84 XJ6 M1
92 Mustang 5.0 Redline
99 Tahoe 2 door Castrol Edge
99 MX5 Miata Anniversary Edition M1
04 Subaru STi Motul
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104378 05/13/19 03:37 PM
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rollinpete Offline
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Thanks for posting this information. thumbsup

Correct me if i'm wrong ,but would this mean the oil flows easier thru the XG8A, compared to the TG8A?


Pete.

97 Ford Expl.Sport 4.0 ohv 4wd 5spd 188k miles
03 Saturn Ion 2.2 L4 5spd 239k miles
PP, PPHM 50/50 5w30

Currently under the influence of oil shocked2

Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104379 05/13/19 03:38 PM
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RDY4WAR Offline OP
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I sent the same request to WIX regarding the 51515, 51515XP, and 51515R filters. Their response was...

We can't give out that information.

no-no


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: rollinpete] #5104381 05/13/19 03:38 PM
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RDY4WAR Offline OP
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Originally Posted by rollinpete
Thanks for posting this information. thumbsup

Correct me if i'm wrong ,but would this mean the oil flows easier thru the XG8A, compared to the TG8A?


Yes. Less restriction at the same flow rate while also filtering better.


"He who is without oil, shall throw the first rod." - Compressions 9:1
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104390 05/13/19 03:49 PM
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rollinpete Offline
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Originally Posted by RDY4WAR
Originally Posted by rollinpete
Thanks for posting this information. thumbsup

Correct me if i'm wrong ,but would this mean the oil flows easier thru the XG8A, compared to the TG8A?


Yes. Less restriction at the same flow rate while also filtering better.



Thanks!


Pete.

97 Ford Expl.Sport 4.0 ohv 4wd 5spd 188k miles
03 Saturn Ion 2.2 L4 5spd 239k miles
PP, PPHM 50/50 5w30

Currently under the influence of oil shocked2

Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104412 05/13/19 04:15 PM
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Is the difference significant?


1994 BMW 530i, 246K
1996 Honda Accord, 280K
1999 Toyota Sienna, 420K
2000 Toyota ECHO, 281K
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: kschachn] #5104458 05/13/19 04:55 PM
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CT8 Offline
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Originally Posted by kschachn
Is the difference significant?

That was my first thought.


2015 F150 2.7
2018 F350 6.2
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104473 05/13/19 05:26 PM
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blupupher Offline
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I would think not, only 0.3 psi difference, and vehicles have what, 30-60 psi systems?
But my thoughts have been wrong before, I really have no idea.


2018 Santa Fe: PP 10W-30/OEM/5k
2018 Soul: Mobil Super 5W-20/OEM/5k
2012 xB: M1 EP 0W-20/CQ Blue/5k
2002 F150: Magnatec 5W-20/Bosch D+/1yr
1994 VT1100: Peak 15W-40/Bosch D+/1yr
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104477 05/13/19 05:32 PM
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CR94 Offline
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Are smaller filters tested at proportionately lower flow rates, or the same? If the same, pressure drop would go considerably higher.

Last edited by CR94; 05/13/19 05:37 PM.

2011 Toyota Prius now at 104K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104518 05/13/19 06:18 PM
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rollinpete Offline
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Originally Posted by RDY4WAR
I sent a request to Fram about the flow rates of the PH8A, TG8A, XG8A, and HP1 filters. I was curious how the new staff there might respond. Here is the response I received from them.

Per our engineering team all filters are tested at ISO 4548-12 test standards. The test is performed with MIL-H-5606 oil at 40 C temperature. The filters are only tested at 3GPM per test requirements. Here are the restriction results for each model:



PH8A: 1.8 PSI @ 3GPM

TG8A: 1.8 PSI @ 3GPM

XG8A: 1.5 PSI @ 3GPM

HP1: 1.45 PSI @ 3GPM



A search for MIL-H-5606 technical properties showed a KV40 of 13.8 cSt.



Looking at them numbers now for a while and they don't seem right?
If I managed to get my truck to go 90 down the highway and get the oil pressure up to 50 psi on the xg8a filter i'd be pumping 100 gpm of oil.
Can anyone explain this to a simple folk like me. LOL


Pete.

97 Ford Expl.Sport 4.0 ohv 4wd 5spd 188k miles
03 Saturn Ion 2.2 L4 5spd 239k miles
PP, PPHM 50/50 5w30

Currently under the influence of oil shocked2

Re: Fram PH/TG/XG8A + HP1 flow rate [Re: rollinpete] #5104525 05/13/19 06:29 PM
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Originally Posted by rollinpete
Looking at them numbers now for a while and they don't seem right?
If I managed to get my truck to go 90 down the highway and get the oil pressure up to 50 psi on the xg8a filter i'd be pumping 100 gpm of oil.
Can anyone explain this to a simple folk like me. LOL


Pressure drop (delta-p) across the oil filter has nothing to do with how much oil pressure you see on the dashboard gauge.

Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104530 05/13/19 06:36 PM
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Originally Posted by RDY4WAR
I sent a request to Fram about the flow rates of the PH8A, TG8A, XG8A, and HP1 filters. I was curious how the new staff there might respond. Here is the response I received from them.

Per our engineering team all filters are tested at ISO 4548-12 test standards. The test is performed with MIL-H-5606 oil at 40 C temperature. The filters are only tested at 3GPM per test requirements. Here are the restriction results for each model:

PH8A: 1.8 PSI @ 3GPM

TG8A: 1.8 PSI @ 3GPM

XG8A: 1.5 PSI @ 3GPM

HP1: 1.45 PSI @ 3GPM


A search for MIL-H-5606 technical properties showed a KV40 of 13.8 cSt.


Go info, thanks for posting. 13.8 cSt is like a light 40 weight at 212 deg F.

Here's a couple of delta-p vs flow graphs for comparison. One is the PureOne from Purolator that shows delta-p vs flow with hot oil of about the same viscosity. Also a graph of the Ford Racing filter with unknown oil viscosity, but it would have to be relatively hot oil IMO to obtain a graph like that. Looking at 3 GPM on the graph, the PureOne is 1.2 PSID and the Ford Racing is 2.5 PSID.

As mentioned many times, most oil filters out there will not have much delta-p with hot oil ... way less than most people would think. Even at 10 GPM, the delta-p will only be 4 to 5 PSID with hot oil.

PureOne Flow vs Delta-P Curve.JPGFord Racing Filter - FL820 Spec Sheet.jpg
Re: Fram PH/TG/XG8A + HP1 flow rate [Re: RDY4WAR] #5104535 05/13/19 06:41 PM
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RDY4WAR Offline OP
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The secret to the better flow with the Purolator is the tear in the media. laugh


"He who is without oil, shall throw the first rod." - Compressions 9:1
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