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Is OEM Air Filter the "BEST"? #4542640
10/13/17 09:18 PM
10/13/17 09:18 PM
Joined: Sep 2002
Posts: 2,267
VA
Gebo Offline OP
Gebo  Offline OP
Joined: Sep 2002
Posts: 2,267
VA
Is the consensus here that OEM air filters offer the best engine protection (regardless of increased hp or torque claims)? Are OEM air filters the best at keeping out damaging particles while allowing the engine to function as it was designed to function?


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 58K

Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4542660
10/13/17 09:43 PM
10/13/17 09:43 PM
Joined: Aug 2013
Posts: 2,529
Central Maryland
HangFire Offline
HangFire  Offline
Joined: Aug 2013
Posts: 2,529
Central Maryland
You want a consensus on EVERY OEM brand, type, year, generation of air filters? Ever?


Various musings: http://hangfire.net
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4542676
10/13/17 09:56 PM
10/13/17 09:56 PM
Joined: Aug 2008
Posts: 18,357
Ontario, Canada
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 18,357
Ontario, Canada
I have had better UOA's with Fram paper filters than the usual cotton type media from the dealer.


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4542704
10/13/17 10:25 PM
10/13/17 10:25 PM
Joined: Sep 2010
Posts: 7,559
SE Texas
2015_PSD Offline
2015_PSD  Offline
Joined: Sep 2010
Posts: 7,559
SE Texas
Not from my experience with Motorcraft--WIX or NAPA Gold are light years better.


2018 MB AMG GLC43 3.0L Coupe - Castrol 0W-40/Purflux
2018 MB C300 2.0L - M1 0W-40/OEM
2015 F-250 6.7L PS Diesel - Delo 15W-40/CQ Blue
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Re: Is OEM Air Filter the "BEST"? [Re: HangFire] #4542705
10/13/17 10:27 PM
10/13/17 10:27 PM
Joined: Mar 2016
Posts: 1,393
Western S.C. since 1996
CR94 Online content
CR94  Online Content
Joined: Mar 2016
Posts: 1,393
Western S.C. since 1996
Originally Posted By: HangFire
You want a consensus on EVERY OEM brand, type, year, generation of air filters? Ever?
Good point! Some OEM filters might be better than others.


2011 Toyota Prius now at 92K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4542707
10/13/17 10:30 PM
10/13/17 10:30 PM
Joined: Aug 2016
Posts: 654
New Jersey
THafeez Offline
THafeez  Offline
Joined: Aug 2016
Posts: 654
New Jersey
get an air filter gauge and you will find out.


2004 Toyota Solara SE 2.4 2AZFE
182,000 miles
Castrol Magnatec Semi-Syn 5W30
Royal Purple 20-400 oversize 2nd run
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4542753
10/13/17 11:53 PM
10/13/17 11:53 PM
Joined: May 2012
Posts: 953
Rio Rancho, NM
Pajero Offline
Pajero  Offline
Joined: May 2012
Posts: 953
Rio Rancho, NM
For my application yes! I have purchased a dozen various brands and compared them to Mitsubishi OEM. OEM in most cases was cheaper and better quality. Although, I'm not a scientist, it's just my personal belief. I do have faith in the Japanese. Different strokes for different folks. That's what my grandfather always said.....



Respectfully,

Pajero!


Always remember "Planned obsolescence."

1994 Montero SR 3.5 DOHC, 133,xxx
Fram Ultra/ Snorkel with Pre-filter
K-9-Co-pilot
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4542772
10/14/17 12:25 AM
10/14/17 12:25 AM
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline
Joined: May 2013
Posts: 2,093
Saskatchewan, Canada
OEM filters generally will flow more air than the engine can use to make power. I'm not sure what other criteria you would use with regard to which is "best" but that one is good enough for me. Modern OEM filters are designed to flow enough air to support the rated power during the full life of the filter (that is, when dirty, and before the recommended replacement mileage).

Since air intake filters are more effective (filter down to smaller particle size) when dirty versus brand new, I often wonder how some people determine which is "best" in the first place. Pressure drop and AFM are reasonable tools to use, guessing or appearance is not.

Plus, and this is so commonly proven that it's surprising it needs mentioning, but having a filter flows more air and generates more HP/Torque than running open (remove the filter), regardless of whether the engine is stock or modified, including highly modified.

Aftermarket filters (K&N, etc) are useful if you are building a motor that is used off-road and therefore you have no OEM intake restrictions and will use an aftermarket air cleaner or intake tract, and can help a highly modified motor when carefully chosen (often that means ditching the OEM filter housing and intake tract). For a stock or mildly modified motor, it's just bling. Not that they are bad filters ... they're not ... but they are not likely to be an improvement over OEM; they can't "grab" more air if that flow potential doesn't exist.


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4542819
10/14/17 02:54 AM
10/14/17 02:54 AM
Joined: Dec 2013
Posts: 3,989
Manchester, England
Olas Offline
Olas  Offline
Joined: Dec 2013
Posts: 3,989
Manchester, England
It depends on who the OEM is. As a general rule, the OE filter is the best compromise between lifespan, filtration efficiency and CFM.

There are filters that excel in these areas, but it is unusual to find one who outperforms the OE in ALL areas simultaneously.


Cable ties should hold it
Re: Is OEM Air Filter the "BEST"? [Re: Johnny2Bad] #4543000
10/14/17 09:27 AM
10/14/17 09:27 AM
Joined: Aug 2010
Posts: 68
SouthernCaliforniaDesert,USA
PalmSpringsSCal Offline
PalmSpringsSCal  Offline
Joined: Aug 2010
Posts: 68
SouthernCaliforniaDesert,USA
YOUR QUOTE "I often wonder how some people determine, I often wonder how some people determine which is "best" in the first place." and so on
.
Bingo...couldnt have said it better

In the post above yours "Pajaro" said what many say: "I just have personal belief,faith and trust." None of which are based on fact.

Its easy to do ,but careless.I catch mysel fwanting to rationalize the same way, from time to time. Its the easiest way out ..short term,but not longterm.

Last edited by PalmSpringsSCal; 10/14/17 09:36 AM.
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4543057
10/14/17 10:47 AM
10/14/17 10:47 AM
Joined: Jan 2015
Posts: 611
missouri
ragtoplvr Offline
ragtoplvr  Offline
Joined: Jan 2015
Posts: 611
missouri
years ago GM air filters used to be some of the best. Fram never seemed to get dirty. Drove a lot of gravel roads, AC filters got dirty the fastest, and at the dealer were cheaper than at NAPA. So it can happen.

Like anything, times have changed. No idea now.

Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4543152
10/14/17 12:22 PM
10/14/17 12:22 PM
Joined: Sep 2010
Posts: 6,988
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 6,988
Texas
I use mostly OEM air filters and never OEM oil filters the stores are pushing STP or Framair filters
I have bought Wix at Napa and look well made

Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4543535
10/14/17 08:03 PM
10/14/17 08:03 PM
Joined: Sep 2002
Posts: 2,267
VA
Gebo Offline OP
Gebo  Offline OP
Joined: Sep 2002
Posts: 2,267
VA
I'm wondering how to find out more info about air filters. From my reasoning, the "only" way dirt can get into your oil is through the air filter.


'98 LEX LS400 280K
'00 LEX GS300 195K
'02 4Runner 225K
'05 Lex LS430 85K
'06 Toyota Highlander 145K
'09 Lex IS350 85K
'07 Lex GX470 58K

Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4543834
10/15/17 09:21 AM
10/15/17 09:21 AM
Joined: Jan 2017
Posts: 331
Texas,USA
ATex7239 Offline
ATex7239  Offline
Joined: Jan 2017
Posts: 331
Texas,USA
I cannot remember when or where I heard this and I'm paraphrasing, but...

People want "the best" for their vehicle, but nothing on the vehicle is "the best."


'12 Buick Enclave 139,xxx
Valvoline ML SynBlend 5w30
ACDelco PF63E

'17 Ford Fusion (Company Lease) 42,xxx
Oil Don't know
Filter Don't care
Re: Is OEM Air Filter the "BEST"? [Re: Gebo] #4545108
10/16/17 12:17 PM
10/16/17 12:17 PM
Joined: May 2008
Posts: 2,015
NJ
UG_Passat Offline
UG_Passat  Offline
Joined: May 2008
Posts: 2,015
NJ
I buy OEM, but not the OE filter. I put the OE filter for a different region of the world aka the Cold Weather filter.


2016 VW Tiguan|APR Stage 1|Neuspeed P-Flo|Osram CBI|Redline 5w30
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