Matt Macchiarolo

If your case is pre-Allied Signal, you should be OK.

"L.W.(Bill) ------ III" <----------@***.net> wrote in message
news:445D293C.B8506D02@***.net...
> Hi Earle,
> I use Fram, mostly because I still have a case left, but they are
> on all my cars, two with over three hundred thousand miles.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Earle Horton wrote:
>>
>> I'll bet he has a cheap Fram filter in it, or the equivalent.
>>
>> Earle

Matt Macchiarolo

If your case is pre-Allied Signal, you should be OK.

"L.W.(Bill) ------ III" <----------@***.net> wrote in message
news:445D293C.B8506D02@***.net...
> Hi Earle,
> I use Fram, mostly because I still have a case left, but they are
> on all my cars, two with over three hundred thousand miles.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Earle Horton wrote:
>>
>> I'll bet he has a cheap Fram filter in it, or the equivalent.
>>
>> Earle

Matt Macchiarolo

If your case is pre-Allied Signal, you should be OK.

"L.W.(Bill) ------ III" <----------@***.net> wrote in message
news:445D293C.B8506D02@***.net...
> Hi Earle,
> I use Fram, mostly because I still have a case left, but they are
> on all my cars, two with over three hundred thousand miles.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Earle Horton wrote:
>>
>> I'll bet he has a cheap Fram filter in it, or the equivalent.
>>
>> Earle

Matt Macchiarolo

Yup, I have a Motorcraft FL-1 filter on mine. XJ's would have some problem
because of the right angle filter adaper, not much room in the engine bay
for a larger filter.

"Earle Horton" <NurseBustersNoSpam@msn.com> wrote in message
news:445e10d2$0$23765$a82e2bb9@reader.athenanews.c om...
> The 4.0 liter engine originally used a PH3985 or equivalent, with a metric
> filter adapter having 20mm-1.5mm thread. In 1991, Jeep switched to a PH16
> with 3/4-16, which is what many Chrysler products used. This appears to
> have the same base as the larger PH8, used on older Ford and Chrysler
> engines.
>
> Can you substitute the one quart filter for the half quart filter? I
> suppose so, but I have never done it.
>
> Earle
>
> "L.W.(Bill) ------ III" <----------@***.net> wrote in message
> news:445DACB7.C9361868@***.net...
>> I lost all my cross stuff. The AMC six is different from what all
>> Ford and Chrysler products used, and they didn't fit any GM.
>> God Bless America, Bill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> billy ray wrote:
>> >
>> > I seen on the web where the Jeep 4 liter will accept the Ford V-8
> filters
>> > (FL-1)
>
>

Matt Macchiarolo

Yup, I have a Motorcraft FL-1 filter on mine. XJ's would have some problem
because of the right angle filter adaper, not much room in the engine bay
for a larger filter.

"Earle Horton" <NurseBustersNoSpam@msn.com> wrote in message
news:445e10d2$0$23765$a82e2bb9@reader.athenanews.c om...
> The 4.0 liter engine originally used a PH3985 or equivalent, with a metric
> filter adapter having 20mm-1.5mm thread. In 1991, Jeep switched to a PH16
> with 3/4-16, which is what many Chrysler products used. This appears to
> have the same base as the larger PH8, used on older Ford and Chrysler
> engines.
>
> Can you substitute the one quart filter for the half quart filter? I
> suppose so, but I have never done it.
>
> Earle
>
> "L.W.(Bill) ------ III" <----------@***.net> wrote in message
> news:445DACB7.C9361868@***.net...
>> I lost all my cross stuff. The AMC six is different from what all
>> Ford and Chrysler products used, and they didn't fit any GM.
>> God Bless America, Bill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> billy ray wrote:
>> >
>> > I seen on the web where the Jeep 4 liter will accept the Ford V-8
> filters
>> > (FL-1)
>
>

Matt Macchiarolo

Yup, I have a Motorcraft FL-1 filter on mine. XJ's would have some problem
because of the right angle filter adaper, not much room in the engine bay
for a larger filter.

"Earle Horton" <NurseBustersNoSpam@msn.com> wrote in message
news:445e10d2$0$23765$a82e2bb9@reader.athenanews.c om...
> The 4.0 liter engine originally used a PH3985 or equivalent, with a metric
> filter adapter having 20mm-1.5mm thread. In 1991, Jeep switched to a PH16
> with 3/4-16, which is what many Chrysler products used. This appears to
> have the same base as the larger PH8, used on older Ford and Chrysler
> engines.
>
> Can you substitute the one quart filter for the half quart filter? I
> suppose so, but I have never done it.
>
> Earle
>
> "L.W.(Bill) ------ III" <----------@***.net> wrote in message
> news:445DACB7.C9361868@***.net...
>> I lost all my cross stuff. The AMC six is different from what all
>> Ford and Chrysler products used, and they didn't fit any GM.
>> God Bless America, Bill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> billy ray wrote:
>> >
>> > I seen on the web where the Jeep 4 liter will accept the Ford V-8
> filters
>> > (FL-1)
>
>

Matt Macchiarolo

"DaveW" <spsffan@verizon.net> wrote in message
news:FKg7g.2757$0d3.1052@trnddc08...
>
>
> Sorry for the top post, but:
>
> Back when I used to drive Slant 6 cars (1980-1999), I noticed the
> following:
>
> 1. On the Slant 6, just like the 4.0 Jeep, the filter sits upside down so
> that gravity tends to make the oil flow back out of the filter and into
> the pan when not running.

??? Filter sits horizontal, not upside down on the 4.0L.

>
> 2. Despite the claims made here and elsewhere, based on my oil lights on 3
> vehicles over almost 20 years, Fram filters tended to hold pressure
> overnight better than AC, Motocraft, Mopar, and a few others. Purelator
> was an exception...they always worked.

I've found the opposite. For my Super Duty V10, the Mobil 1 filter actually
had worse start-up pressure than anything. I use Motorcraft filters, which I
believe are made by Purolator.

>
> 4. I finally gave up on the Slant 6s and used Frams. Sure, the
> construction of the anti-drainback valve may appear flimsy, but it always
> worked unlike most others. Perhaps that cardboard/rubber flap actually
> works better in service than the more logical systems used in other
> filters. Several times, after an oil change, I had to replace "Xbrand"
> filters with Fram to hold oil in the filter overnight. The Frams always
> assured a quick oil light turnoff until they got replaced at the next oil
> change.

Consider that what you may be seeing is the Frams filter so poorly that the
oil reaches pressure downstream of the filter sooner .

>
> 6. I'm not commenting on the filter medium itself. Just the anti-drainback
> function.
>

Then what's the point of a filter?

Matt Macchiarolo

"DaveW" <spsffan@verizon.net> wrote in message
news:FKg7g.2757$0d3.1052@trnddc08...
>
>
> Sorry for the top post, but:
>
> Back when I used to drive Slant 6 cars (1980-1999), I noticed the
> following:
>
> 1. On the Slant 6, just like the 4.0 Jeep, the filter sits upside down so
> that gravity tends to make the oil flow back out of the filter and into
> the pan when not running.

??? Filter sits horizontal, not upside down on the 4.0L.

>
> 2. Despite the claims made here and elsewhere, based on my oil lights on 3
> vehicles over almost 20 years, Fram filters tended to hold pressure
> overnight better than AC, Motocraft, Mopar, and a few others. Purelator
> was an exception...they always worked.

I've found the opposite. For my Super Duty V10, the Mobil 1 filter actually
had worse start-up pressure than anything. I use Motorcraft filters, which I
believe are made by Purolator.

>
> 4. I finally gave up on the Slant 6s and used Frams. Sure, the
> construction of the anti-drainback valve may appear flimsy, but it always
> worked unlike most others. Perhaps that cardboard/rubber flap actually
> works better in service than the more logical systems used in other
> filters. Several times, after an oil change, I had to replace "Xbrand"
> filters with Fram to hold oil in the filter overnight. The Frams always
> assured a quick oil light turnoff until they got replaced at the next oil
> change.

Consider that what you may be seeing is the Frams filter so poorly that the
oil reaches pressure downstream of the filter sooner .

>
> 6. I'm not commenting on the filter medium itself. Just the anti-drainback
> function.
>

Then what's the point of a filter?

Matt Macchiarolo

"DaveW" <spsffan@verizon.net> wrote in message
news:FKg7g.2757$0d3.1052@trnddc08...
>
>
> Sorry for the top post, but:
>
> Back when I used to drive Slant 6 cars (1980-1999), I noticed the
> following:
>
> 1. On the Slant 6, just like the 4.0 Jeep, the filter sits upside down so
> that gravity tends to make the oil flow back out of the filter and into
> the pan when not running.

??? Filter sits horizontal, not upside down on the 4.0L.

>
> 2. Despite the claims made here and elsewhere, based on my oil lights on 3
> vehicles over almost 20 years, Fram filters tended to hold pressure
> overnight better than AC, Motocraft, Mopar, and a few others. Purelator
> was an exception...they always worked.

I've found the opposite. For my Super Duty V10, the Mobil 1 filter actually
had worse start-up pressure than anything. I use Motorcraft filters, which I
believe are made by Purolator.

>
> 4. I finally gave up on the Slant 6s and used Frams. Sure, the
> construction of the anti-drainback valve may appear flimsy, but it always
> worked unlike most others. Perhaps that cardboard/rubber flap actually
> works better in service than the more logical systems used in other
> filters. Several times, after an oil change, I had to replace "Xbrand"
> filters with Fram to hold oil in the filter overnight. The Frams always
> assured a quick oil light turnoff until they got replaced at the next oil
> change.

Consider that what you may be seeing is the Frams filter so poorly that the
oil reaches pressure downstream of the filter sooner .

>
> 6. I'm not commenting on the filter medium itself. Just the anti-drainback
> function.
>

Then what's the point of a filter?