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Quick Lube used an undersized filter. #4479757
08/05/17 10:27 AM
08/05/17 10:27 AM
Joined: Apr 2004
Posts: 7,954
New York
pbm Offline OP
pbm  Offline OP

Joined: Apr 2004
Posts: 7,954
New York
My niece stopped by yesterday driving her 2013 Focus.
I asked her if she is keeping up on her oil changes and she said yes but that she was due for one.
Since I have a 2014 Focus I had the correct filter and plenty of oil so I did the oil change for her.
I was surprised to find a Service Pro 4386 (undersized) filter on her car which was put on by a quick lube place near her home. I'm familiar with this filter since I've run them on my 1zzFE Toyota engine in the past.
It seems to me they must of been out of the correct filter (3614) and used one with the same thread #'s. Unbelievable.

PS: I used QSGB and a Napa Gold filter.

PS 2: My Focus is a 5 speed M/T but my niece has the DCT....surprisingly she hasn't had any problems the 35K that she's had the car...she bought it new...


'Journalism is Dead'
Re: Quick Lube used an undersized filter. [Re: pbm] #4479772
08/05/17 10:37 AM
08/05/17 10:37 AM
Joined: Oct 2011
Posts: 5,091
USA
NHGUY Offline
NHGUY  Offline

Joined: Oct 2011
Posts: 5,091
USA
They probably only stock 6 filters to fit everything.....

Re: Quick Lube used an undersized filter. [Re: pbm] #4479781
08/05/17 10:46 AM
08/05/17 10:46 AM
Joined: Dec 2016
Posts: 8,017
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,017
Waco, TX
It won't hurt anything.
People often think engine filters need to be as large as possible, but that really isn't the case.

Look the the tiny filter used on the GM 5.3L V8 in full size trucks (AC PF46 and Napa 7060) - - it's about the same size as the 3614 on your niece's Focus. Crazy, isn't it? It does just fine.

Last edited by Linctex; 08/05/17 10:48 AM.

"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: Quick Lube used an undersized filter. [Re: pbm] #4479782
08/05/17 10:48 AM
08/05/17 10:48 AM
Joined: Jan 2016
Posts: 325
TX
mooferz Offline
mooferz  Offline

Joined: Jan 2016
Posts: 325
TX
This is extremely common. Did two oil changes for others recently, and both have had what I would consider undersized filters that were put in by the quick lube shop.
Though on one of them (mom's CR-V) I spun back on a Super Tech ST9688, which may seem a tad undersized compared to the 7317's.


2001 Lexus ES300, 235k mi, German Castrol 0w-40, Fram TG8316
1985 BMW R80RT (1L)- M1 15w-50
1993 Volvo 945 Turbo- Rotella T5 10W-30 (CJ-4)
Re: Quick Lube used an undersized filter. [Re: mooferz] #4479786
08/05/17 10:53 AM
08/05/17 10:53 AM
Joined: Dec 2016
Posts: 8,017
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,017
Waco, TX
Originally Posted By: mooferz
which may seem a tad undersized compared to the 7317's.


The 7317 (Napa 1357) is the same exact size as the one I just mentioned being used on 5.3 Chevy V8's.
It's honestly..... Overkill for your mom's Honda CR-V.


"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: Quick Lube used an undersized filter. [Re: NHGUY] #4479804
08/05/17 11:09 AM
08/05/17 11:09 AM
Joined: Sep 2004
Posts: 22,367
Central Florida
Mr Nice Offline
Mr Nice  Offline

Joined: Sep 2004
Posts: 22,367
Central Florida
Originally Posted By: NHGUY
They probably only stock 6 filters to fit everything.....


Yep, undersized will still get the job done.

Re: Quick Lube used an undersized filter. [Re: pbm] #4479820
08/05/17 11:27 AM
08/05/17 11:27 AM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline

Joined: Jul 2017
Posts: 542
Texas (south)
a bit less oil circulating the car, but i've that happen to me, and no problems so far


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: Quick Lube used an undersized filter. [Re: FermeLaPorte] #4479824
08/05/17 11:30 AM
08/05/17 11:30 AM
Joined: Mar 2004
Posts: 21,848
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,848
Upstate NY
Originally Posted By: FermeLaPorte
a bit less oil circulating the car, but i've that happen to me, and no problems so far


Probably a few tablespoons less. Percentage wise, tiny difference.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Quick Lube used an undersized filter. [Re: FermeLaPorte] #4479825
08/05/17 11:31 AM
08/05/17 11:31 AM
Joined: Jan 2008
Posts: 11,257
OH
SatinSilver Offline
SatinSilver  Offline

Joined: Jan 2008
Posts: 11,257
OH
I kind of wondered how a quick lube stocked all sorts of different filters for various makes and models.

One time when I went to the Ford QuickLane with the Matrix they told me while I was waiting that it may take a little longer since they didn't have the correct filter in stock. They would have to go to the auto parts store and get one. Then they did find a filter that fit which turned out to be a little bigger than the normal one. But I thought it was good they told me about it. Last week when I went there they put on an Omnicraft filter. Looks nice.

Re: Quick Lube used an undersized filter. [Re: pbm] #4479829
08/05/17 11:35 AM
08/05/17 11:35 AM
Joined: Jun 2003
Posts: 18,424
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline

Joined: Jun 2003
Posts: 18,424
Deplorable in apple valley, ca
I know that group7 has been doing this for years.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Quick Lube used an undersized filter. [Re: NHGUY] #4479832
08/05/17 11:37 AM
08/05/17 11:37 AM
Joined: Aug 2004
Posts: 5,159
Katy, Republic of Texas
blupupher Offline
blupupher  Offline

Joined: Aug 2004
Posts: 5,159
Katy, Republic of Texas
Originally Posted By: NHGUY
They probably only stock 6 filters to fit everything.....

Exactly. There are interchange charts that oil change places have to reduce inventory. So long a threads, gasket, and bypass specs match, size is not a concern for them.

As said, in the real world, it probably does not matter, but most of us are to OCD to allow that.

Here is one posted by FordBroncoVWJeta from Walmart:



2018 Hyundai Santa Fe: Delo XLE 10w-30, OEM filter, 3k
2012 Scion xB: QSUD 0w-20, CQ Blue, 5k
2002 Ford F150: Magnatec 5w-20, Bosch D+, 1yr
1994 Honda VT1100: Peak 15w-40, PSL, 1yr
Re: Quick Lube used an undersized filter. [Re: pbm] #4479838
08/05/17 11:41 AM
08/05/17 11:41 AM
Joined: Mar 2004
Posts: 21,848
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,848
Upstate NY
Thus why you bring your own filter if you must use a JL.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Quick Lube used an undersized filter. [Re: pbm] #4479865
08/05/17 12:10 PM
08/05/17 12:10 PM
Joined: Jan 2011
Posts: 3,484
PV Az @ 5000'
AZjeff Offline
AZjeff  Offline

Joined: Jan 2011
Posts: 3,484
PV Az @ 5000'
Is there anything wrong with expecting what the car calls for? If it's smaller than what is spec'd it may not hurt the engine but it's still too small. If the manufacturer thought a smaller filter was perfectly fine why wouldn't they spec it? [censored]


86 Samurai 1.3 leftovers
14 RAV4 2.5 5W-20 PP
16 Silverado 1500 4.3, DI, AFM 5W-30 PP

The most important thing to do in your life is to not interfere with someone else's life. - Frank Zappa

Re: Quick Lube used an undersized filter. [Re: AZjeff] #4479890
08/05/17 12:30 PM
08/05/17 12:30 PM
Joined: Dec 2013
Posts: 3,756
Massachusetts
turtlevette Offline
turtlevette  Offline

Joined: Dec 2013
Posts: 3,756
Massachusetts
A small filter is going to be more restrictive, operate at higher backpressure, bypass more often and provide less cooling. These issues compound as it plugs up.

I was dismayed to see a little shorty filter on the vette that must have been manufactured exclusively for valvoline. It was about 1/2 - 2/3 the size of a pf25/ph30. Why. Stupid MBA bean counters.


Re: Quick Lube used an undersized filter. [Re: pbm] #4479893
08/05/17 12:36 PM
08/05/17 12:36 PM
Joined: May 2006
Posts: 4,079
Central Wisconsin
dwendt44 Offline
dwendt44  Offline

Joined: May 2006
Posts: 4,079
Central Wisconsin
A smaller filter would likely only make a difference at high RPMs,
most folks rarely if ever get there.


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
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