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#4465537 - 07/20/17 09:41 PM FL 500s FL820s FL 1A
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
Saw these at WM today.
Are they interchangable ?
The gaskets seem to match up.
820S seems like a nice compromise.
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

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#4465578 - 07/20/17 10:15 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
Nyogtha Offline


Registered: 10/13/14
Posts: 2319
Loc: San Antonio, TX
No. The FL-1A has SAE threads. The other two have matching metric threads and can be interchanged depending on clearance.

For example the 3.7L V6 in my wife's car is only able to accomodate the FL-500S can diameter. My truck is able to accommodate either the FL-820S diameter or the FL-500S diameter.

Lots of threads & pics here of torn FL-820S and some FL-500S. I don't use Motorcraft filters.
_________________________
"No matter how paranoid you are you're not paranoid enough. Tell the truth. Reach as many people as you can with it. That's your weapon." - Susanne Modeski, aka "Holly" to The Lone Gunmen

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#4465618 - 07/20/17 11:03 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
Thanks !
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

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#4465873 - 07/21/17 08:28 AM Re: FL 500s FL820s FL 1A [Re: merconvvv]
L_Sludger Offline


Registered: 10/04/09
Posts: 3947
Loc: Ohio
I love the FL1A filter. I used them often on Toyotas that would accept the big ole filter.
It uses 3/4-16 threads, right? Yeah, the FL820 is thread incompatible. You can even see in the photo how it has much larger threads.
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too many cars and oil combinations to list in 150 characters or less

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#4465914 - 07/21/17 09:07 AM Re: FL 500s FL820s FL 1A [Re: merconvvv]
AirgunSavant Offline


Registered: 07/22/15
Posts: 3772
Loc: MD
I'd avoid the 820s and use the recommended filter because the 820s will be more problematic from many experiences here
than the 500s. More prone to tears in longer OCI's.

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#4465978 - 07/21/17 10:01 AM Re: FL 500s FL820s FL 1A [Re: merconvvv]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
The quick change shops are stocking the "FL-500S size" more and more, Lots of folks run them on their trucks with no issues. It's spec'd for the Coyote 5.0, so I SERIOUSLY doubt there's any issues with it's size being inadequate.


I have never had a Motorcraft filter fail in any way.
I haven't cut them ALL open, but the ones I have have never had any issues.

My local walmart is clearancing all of their Bosch Distance plus filters for $3.00

I got the last three "FL-820s" equivalents - that'll keep me the next 60,000 miles.
_________________________
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(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4466007 - 07/21/17 10:30 AM Re: FL 500s FL820s FL 1A [Re: merconvvv]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
As an aside, that FL-1A filter looks pretty dated. I thought they got rid of the "Long Life" wording ages ago. Or, did they bring it back inexplicably? The "regular" version, for which the FL-1A was the upsell, was the CFL1, and that was discontinued decades ago.
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Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4466117 - 07/21/17 12:27 PM Re: FL 500s FL820s FL 1A [Re: Garak]
AirgunSavant Offline


Registered: 07/22/15
Posts: 3772
Loc: MD
Yes I only see very old stock with the " Long Life" notations

Originally Posted By: Garak
As an aside, that FL-1A filter looks pretty dated. I thought they got rid of the "Long Life" wording ages ago. Or, did they bring it back inexplicably? The "regular" version, for which the FL-1A was the upsell, was the CFL1, and that was discontinued decades ago.

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#4466131 - 07/21/17 12:40 PM Re: FL 500s FL820s FL 1A [Re: AirgunSavant]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
Yes. I think I have a fairly old example in my garage, without the markings. I may have to check.
_________________________
Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4466195 - 07/21/17 01:37 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
I guess WM carries some rather old stock.
I will check the date onit when i visit next. Dont know if it has one.

820S never let me down.
500S be easy to replace though thru that tight space on the expe.


Edited by merconvvv (07/21/17 01:39 PM)
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

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#4466213 - 07/21/17 01:51 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
Long life meaning can go how many miles ?
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

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#4466216 - 07/21/17 01:54 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
Originally Posted By: merconvvv
Long life meaning can go how many miles ?

I'm not sure what Ford's marketing was, exactly. My 1983 Ford LTD's owner's manual listed the CFL1 as the prescribed filter, with the FL-1A as the premium, long life option, along with a marketing picture of the filter, much like shown in the thread. OCIs were obviously shorter then. The draw for me was the FL-1A had the ADBV, the CFL1 did not.
_________________________
Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4466229 - 07/21/17 02:11 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa




Ran donught magnet thru it. Picked up nothing smile
That 820s has seen qsud 10w30 and pp 10w30.
Maybe has seen some blends of m1 i did before.

Few 820s filters in the past have been left on the expe for few years at a time when i was a busybody smile
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

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#4466285 - 07/21/17 03:11 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: merconvvv
Long life meaning can go how many miles ?


I ran a single FL-1A on a "beater" 400M in a '78 F250 for 30,000 miles (3x OCI's every ~10k miles, 15W-40)

The reason I did that was because I had previously run another FL-1A for 10K on the same engine, and after cutting it open I found nothing of consequence. Just some small bits of carbon.

After 30,000 miles of use, I found NO failures inside - no media tears, no sludge, mo metal shavings... just lots & lots of fine bits of carbon. The pleats were wavy, but I just assumed they all did that.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4466339 - 07/21/17 03:49 PM Re: FL 500s FL820s FL 1A [Re: merconvvv]
WellOiled Offline


Registered: 10/03/15
Posts: 1356
Loc: Houston, Texas
merconvvv - The FL-820S sometimes does this:


Dome end tear.


Thread end tear.

2004 Ford Ranger 4.0L V6 using Mobile M1 5W30 oil.
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2004 Ford Ranger 4.0L V6
NAPA Full Synthetic 5W30 + Fram Tough Guard

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