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How Often Change Fuel Filters? #5081842 04/21/19 03:17 PM
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Gebo Offline OP
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I just read the post about the 160K fuel filter and didn't want to hijack his thread.

My question is how often should we change our fuel filters? Every 100K? Every 150K?


'98 LEX LS400 295K
'02 4Runner 240K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: How Often Change Fuel Filters? [Re: Gebo] #5081855 04/21/19 03:29 PM
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Marco620 Offline
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Some are in the tank so in that case when you do the fuel pump. If external 50-60k


15' Civic 1.8 i-vtec 273,000 mi Redline 0w20, BP CVT Fluid, Archoil9100, Si-1
Doberman Whisperer!
Redline Oil,Honda,Doberman,CZ & SONY Aficionado

Re: How Often Change Fuel Filters? [Re: Gebo] #5081868 04/21/19 03:41 PM
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Gebo Offline OP
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Some of mine are external.

Last edited by Gebo; 04/21/19 03:45 PM.

'98 LEX LS400 295K
'02 4Runner 240K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: How Often Change Fuel Filters? [Re: Gebo] #5081871 04/21/19 03:47 PM
Joined: Oct 2017
Posts: 436
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HowAboutThis Offline
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Never replaced one in any car where it was in the tank, where I think most are now. Otherwise, I'd go by the owner's maintenance manual. I think many are "life of the vehicle".

Had a 2002 Honda never replaced over 200k miles (original water pump and alternator, too) '13 Subaru never replaced (only about 60k miles before losing), 2005 Subaru 190k never replaced still running.

So, for me, this item wasn't listed as maintenance, so I haven't done.

Re: How Often Change Fuel Filters? [Re: Gebo] #5081923 04/21/19 04:50 PM
Joined: Apr 2018
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Imp4 Offline
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My '03 Camry has 267,xxx on the fuel filter.
Won't touch it 'til I need to...


2001 Mitsubishi Galant 2.4 - 165k+
Grandma's creampuff...
Re: How Often Change Fuel Filters? [Re: Gebo] #5081939 04/21/19 05:21 PM
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ET16 Offline
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I think 40-50k miles is good. Sometime I find the car runs better after a filter change. I assume the pressure is improved.

Re: How Often Change Fuel Filters? [Re: Gebo] #5082049 04/21/19 07:04 PM
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philipp10 Offline
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Many years ago I used to pre-emptively change but no more. I don't believe they ever clog anymore but as soon as I say that....ohoh

Re: How Often Change Fuel Filters? [Re: Gebo] #5082081 04/21/19 07:28 PM
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SubieRubyRoo Offline
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I think Subaru used to recommend 30k for the ones with canister filters like my 01 Forester had, so that's what I did. Those canisters are bigger than most that were installed by other makers, with the exception of maybe the AC Delco ones on the big GM trucks. So, 30k is probably a good rule of thumb, 50k if you're stretching every dollar and want to take the chance of getting stranded by a plugged filter. Because let's be honest, for a car old enough to have a replaceable filter, it's probably old enough to have some scale and other junk that can slough off and plug the filter. JMHO.

Re: How Often Change Fuel Filters? [Re: Gebo] #5082109 04/21/19 07:42 PM
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supton Offline
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With how slow the local fuel station gas pumps are, I don't think I ever need to change a fuel filter again...

I can't remember the last time I did a change. 148k on my truck, 176k on a Civic, 181k on a Camry and 205k on my Camry--as far as I know all have original fuel filters.

Only ever changed on my VW TDi and that was spelled out in the manual as something it needed every 20k. And from what I could tell online, a number of people did have them clog in under 100k, so they were doing something.


2011 Toyota Camry, base, 2.5L/6MT, 189k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 153k, ours
1999 Toyota Camry LE, 2.2L/4AT, 211k, his
Re: How Often Change Fuel Filters? [Re: Gebo] #5082123 04/21/19 07:49 PM
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Audios Online Content
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50-60k is about the usual interval, if they are replaceable. Both of my diesels want it every 40.


2002 VW Golf TDI-T5 10/30
2007 Mercedes GL320 CDI- M1 0/30 ESP
2005 BMW M3 BMW Twin Power 10/60
2003 BMW M5-Fuchs 5/40
1998 BMW M3/4/5 Fuchs 5/40
Re: How Often Change Fuel Filters? [Re: Audios] #5082167 04/21/19 09:00 PM
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djb Offline
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I used to replace fuel filters 'just because that is what is done'.

And then I started cutting them open. I never encountered a modern filter that was close to clogged, even at 180K miles.

Now I don't bother to replace them unless the hoses leading to them need to be replaced.

Sure, there could be a one-off event where you pump dirt into the tank, but it's not likely. Modern fuel is very clean, and it's filtered at the pump hose. Vehicle tanks are very well sealed, with the car showing an error if the tank isn't holding a vacuum. And the filters are huge compared to the thimble-sized filters were the standard 70 years ago.

And with the regulator *after* the filter, it's extremely unlikely that the engine runs slightly better after a filter change.


Last edited by djb; 04/21/19 09:01 PM.
Re: How Often Change Fuel Filters? [Re: Gebo] #5082210 04/21/19 09:43 PM
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CR94 Offline
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The manual for my Mazda forgot to list a change interval for the fuel filter, although it was external and easy to change. It clogged at about 260k, resulting in loss of power on long Interstate grades. The replacement went even farther before I retired the car, and never clogged.

So, I think the answer is that fuel filter life is highly unpredictable. Change it only when necessary, which effectively means when you get a batch of dirty fuel that clogs it.


2011 Toyota Prius now at 102K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: How Often Change Fuel Filters? [Re: Gebo] #5082236 04/21/19 10:05 PM
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JMJNet Offline
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Depends on what kind of car make model and the type of fuel filter it is using?

Not putting specific car make model will only generate philosophical discussion of people's opinion.


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: How Often Change Fuel Filters? [Re: Gebo] #5082562 04/22/19 09:42 AM
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Patman Offline
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I don't think most new cars include the fuel filter as being part of the maintenance needed (there is no mention of changing the fuel filter in my Corvette's owner's manual for instance), it seems they might be a lifetime item nowadays. I know I haven't changed a fuel filter on any car I've owned since my 87 Mustang GT in the 90s.


2018 Corvette, 16k, M1 ESP Formula 5w30 & NAPA Gold
2006 Civic EX Coupe, 151k, PUP 5w20 & Fram Ultra
2010 BMW 328i X-Drive,120k, GC 0w40 & Fram Ultra

Re: How Often Change Fuel Filters? [Re: Gebo] #5082663 04/22/19 11:13 AM
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When it fails. It's no longer a maintenance item.


“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

435i
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