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Just changed my fuel filter.... #4497763
08/25/17 12:00 PM
08/25/17 12:00 PM
Joined: Mar 2008
Posts: 6,129
Michigan
ZZman Offline OP
ZZman  Offline OP
Joined: Mar 2008
Posts: 6,129
Michigan
My 2003 Grand Marquis has 129,000 miles on it. Decided to change filter as I got it with 121,000 miles on it. I put a Microgard filter on it. My question:

Do you think it is more likely that dirt or rust would clog the fuel filter?


2003 Mercury Grand Marquis. PP HM 5w-30 and Fram Ultra
2008 Sebring Hardtop convertible. PP HM 5w-30 and Fram Ultra
2006 Kawasaki Vulcan 900 LT. Motul 7100 10w-40 and K&N
Re: Just changed my fuel filter.... [Re: ZZman] #4497769
08/25/17 12:07 PM
08/25/17 12:07 PM
Joined: Mar 2004
Posts: 21,096
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 21,096
Upstate NY
Originally Posted By: ZZman
My 2003 Grand Marquis has 129,000 miles on it. Decided to change filter as I got it with 121,000 miles on it. I put a Microgard filter on it. My question:

Do you think it is more likely that dirt or rust would clog the fuel filter?


NEITHER. When I changed the fuel pump (twice, argh) in my 1993 Suburban the inside of the tank was pristine. The only thing dirty was my hands and I tried to keep them away from the tank neck.

Almost all gas stations have very clean gas and with 10% ethanol in most, there is virtually no water.

The newer, shinier and busier a gas station is the less chance for some water or dirt in the fuel.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Just changed my fuel filter.... [Re: ZZman] #4497786
08/25/17 12:43 PM
08/25/17 12:43 PM
Joined: Dec 2005
Posts: 10,268
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 10,268
Upper Midwest
Yeah, I had to replace the fuel pump on my old BMW a couple of years ago, and even that thing was pristine inside the tank. It has seen nothing but E10 and even sat idle for a few years before I got it from a friend. I was surprised but happy to see it that way.


1994 BMW 530i, 238K
1996 Honda Accord, 266K
1999 Toyota Sienna, 407K
2000 Toyota ECHO, 280K
Re: Just changed my fuel filter.... [Re: ZZman] #4497802
08/25/17 01:04 PM
08/25/17 01:04 PM
Joined: Sep 2015
Posts: 3,937
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,937
Connecticut
I changed my fuel filter of my 2002 Lincoln last year around 65K miles. Made no difference though. Best I could tell looking at it and weighing it, there must have been almost nothing in there. Won't ever change that again.

Things are pretty clean inside these engine and fuel systems these days. I took apart the air intake system today at 78K miles and it was pretty darn clean. I just did it to see how things were going since I hadn't ever looked beyond the air filter before. I can't imagine there being any build up on the MAF or IAS. The throttle body was pretty clean too but I gave it a bit of cleaning any ways. Probably won't ever open these up again until there's an issue with idling or how the car runs.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Just changed my fuel filter.... [Re: ZZman] #4497834
08/25/17 01:50 PM
08/25/17 01:50 PM
Joined: Aug 2004
Posts: 4,804
Katy, Republic of Texas
blupupher Offline
blupupher  Offline
Joined: Aug 2004
Posts: 4,804
Katy, Republic of Texas
My '02 F150 had what appeared to be a spotless interior fuel tank when I change my fuel pump @ 180,000 miles, even sitting for almost a year with 1/4 of a tank in it before I got it.
I had changed the fuel filter when I got it (170,000 miles), and back flushing it after removal did get some stuff out, but as said, nothing I could see in the tank itself. Probably lots of small stuff that can't be seen with the naked eye.


2012 xB: QSUD 0w-20/CQ Blue/5k
2010 Santa Fe: PP 0w-20/P1/8k
2007 Vue: VSP 5w-30/EcoGard/OLM
2004 F150: GTX HM 5w-20/TG2/4k
2002 F150: GTX HM 5w-20/EcoGard/1yr
1994 VT1100c: Peak 15w-40/PSL/5k



Re: Just changed my fuel filter.... [Re: ZZman] #4497837
08/25/17 01:52 PM
08/25/17 01:52 PM
Joined: Dec 2003
Posts: 9,918
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,918
Florida, Cape Coral
I've watched my local TEXACO gas station change the 5 micron filter on each of their pumps. ed


CX5 Touring 2.5L :-)
Re: Just changed my fuel filter.... [Re: ZZman] #4497856
08/25/17 02:12 PM
08/25/17 02:12 PM
Joined: Dec 2016
Posts: 7,117
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,117
Waco, TX
It used to be a big problem, especially when buying fuel in rural areas.

Now, so much effort is made to sell clean fuel, it just isn't much of an issue anymore.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Just changed my fuel filter.... [Re: ZZman] #4498041
08/25/17 05:47 PM
08/25/17 05:47 PM
Joined: Oct 2014
Posts: 12,558
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,558
Idaho
Cut open the filter and see .


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Just changed my fuel filter.... [Re: ZZman] #4498111
08/25/17 07:11 PM
08/25/17 07:11 PM
Joined: Oct 2005
Posts: 4,408
Kansas
Kruse Offline
Kruse  Offline
Joined: Oct 2005
Posts: 4,408
Kansas
About 10 years ago, I bought a '95 Mustang that had the factory fuel filter on it. The filter had rusted a hole from the inside-out and was leaking.
It's pretty seldom that a fuel filter clogs anymore, unless you happen to run into a bad tank of gas.
I still replace mine as a preventative measure.

Re: Just changed my fuel filter.... [Re: ZZman] #4498211
08/25/17 08:51 PM
08/25/17 08:51 PM
Joined: Jul 2009
Posts: 22
Canada
Boosted240 Offline
Boosted240  Offline
Joined: Jul 2009
Posts: 22
Canada
All the fuel filters I've changed out have always been quite dirty but never to the point where clogging could occur. I once filled up a gas can at a Shell and found chunks of dirt/crud in it so since then i've been skeptical.

Re: Just changed my fuel filter.... [Re: ZZman] #4501797
08/29/17 08:35 PM
08/29/17 08:35 PM
Joined: Jun 2009
Posts: 107
Michigan
Oil_Flunky Offline
Oil_Flunky  Offline
Joined: Jun 2009
Posts: 107
Michigan
https://www.youtube.com/watch?v=92TfTQTmuq4

300,000 mile fuel filter cut open.


Last edited by Oil_Flunky; 08/29/17 08:35 PM.

Oil, you need it. Oil snobbery, you don't need it.
Re: Just changed my fuel filter.... [Re: Oil_Flunky] #4502166
08/30/17 09:05 AM
08/30/17 09:05 AM
Joined: May 2012
Posts: 4,531
Baltimore, Maryland, USA
zzyzzx Offline
zzyzzx  Offline
Joined: May 2012
Posts: 4,531
Baltimore, Maryland, USA
Originally Posted By: Oil_Flunky
https://www.youtube.com/watch?v=92TfTQTmuq4

300,000 mile fuel filter cut open.



Wich he had also run the flow test on the 30K and 130K mile filters.

Re: Just changed my fuel filter.... [Re: ZZman] #4502265
08/30/17 11:26 AM
08/30/17 11:26 AM
Joined: Mar 2004
Posts: 21,096
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 21,096
Upstate NY
The issues today are mainly caused by ex-wives dumping stuff into your gas tank.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)

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