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#1530207 - 07/13/09 05:00 AM Bosch vs K&N?
opposite_locker Offline


Registered: 06/22/08
Posts: 282
Loc: Central Valley, CA
Which oil filter is considered "better"? Bosch or K&N?

I've got several Bosch and K&N filters built up for my 4.7L Dodge and I want to use the "better" filter during the summer months (due to excessive heat, dust, & idling) and use the comparatively inferior filter in the fall/winter.
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#1530211 - 07/13/09 05:19 AM Re: Bosch vs K&N? [Re: opposite_locker]
NHHEMI Offline


Registered: 07/06/07
Posts: 5136
Loc: NH
 Originally Posted By: opposite_locker
Which oil filter is considered "better"? Bosch or K&N?

I've got several Bosch and K&N filters built up for my 4.7L Dodge and I want to use the "better" filter during the summer months (due to excessive heat, dust, & idling) and use the comparatively inferior filter in the fall/winter.


IMO the K&N is the better of the two. The Bosch filter is a good filter as well( if it is a newer one it should be the same basic thing as a Purolator ). The Bosch will be fine for an average OCI. I would run a K&N to 10K but I wouldn't go that long with a Bosch.
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#1530222 - 07/13/09 05:40 AM Re: Bosch vs K&N? [Re: NHHEMI]
Spector Offline


Registered: 06/10/02
Posts: 3209
Loc: Chattanooga, TN
I might consider the K&N in the winter due to better flow on those cold mornings, well, what you see for cold isn't much but K&N does flow well. I have used them for years now with extended drains, up to 15 or so months on one vehicle. Pretty solid filter

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#1530252 - 07/13/09 06:42 AM Re: Bosch vs K&N? [Re: Spector]
tomcat27 Offline


Registered: 06/25/09
Posts: 2522
Loc: Midwest
what a quandry... the KN is a better filter, and yes, it flows a little better. there are arguements for using it either season!
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#1530316 - 07/13/09 08:16 AM Re: Bosch vs K&N? [Re: tomcat27]
Hethaerto Offline


Registered: 09/08/08
Posts: 820
Loc: Tennessee, USA
I thought the K&N was designed to be used as a racing filter meaning it allows lots of flow, thus filtration efficiency is reduced.

Have they got a new model out?
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#1531144 - 07/13/09 09:30 PM Re: Bosch vs K&N? [Re: Hethaerto]
PurplDodge Offline


Registered: 07/09/09
Posts: 44
Loc: SE Indiana
Save a few bucks and get a Mobil 1 filter. Same as K&N, just no bolt at the top.
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1999 Dodge Ram 1500 318 4x4 Valvoline Synpower, Wix 51515 filter, External tranny filter

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#1531271 - 07/13/09 11:13 PM Re: Bosch vs K&N? [Re: PurplDodge]
StevieC Offline


Registered: 08/21/08
Posts: 14339
Loc: Niagara Falls, ON, CA (near)
K&N IMO.

Never have been a fan of anything Bosch, although their oil filters seem to be of high quality. I guess that's how they even out all the other Khrap they make.
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#1531298 - 07/13/09 11:26 PM Re: Bosch vs K&N? [Re: StevieC]
pzev Offline


Registered: 11/30/05
Posts: 601
Loc: arctic
I can't forgive Bosch for the 4 pronged spark plugs...so I pass on their oil filters. That said, they are not badly built.

M1 for filter efficiency, as its same as K&N except for the filtering media.

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#1531433 - 07/14/09 04:50 AM Re: Bosch vs K&N? [Re: pzev]
opposite_locker Offline


Registered: 06/22/08
Posts: 282
Loc: Central Valley, CA
Have the stash of filters from GC & M1 "oil change" specials at Autozone.

Will stick with the K&N's for the summer, and use up Bosch other seasons. Never gets colder than 30 deg F here, but gets up to 110 F in the summer. Supposed to hit 106 this week.
_________________________
'14 CTS-V estate 6spd - PU 5w30
'08 Ram 4.7 6spd - PU 5w30
'97 Ram 12v CTD 5spd - Delo 15w40
'84 635csi 5spd - M1 5w40 TDT

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#1531749 - 07/14/09 12:45 PM Re: Bosch vs K&N? [Re: opposite_locker]
y_p_w Offline


Registered: 05/06/05
Posts: 2534
Loc: SF Bay Area
I believe neither K&N nor Mobil manufacture the filters with their brand names. I'm under the impression that they're made my Champion Labs using variations of their cans and filter elements.

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#1531812 - 07/14/09 02:18 PM Re: Bosch vs K&N? [Re: y_p_w]
Gary Allan Offline


Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
You are correct.
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#1532013 - 07/14/09 06:16 PM Re: Bosch vs K&N? [Re: y_p_w]
PurplDodge Offline


Registered: 07/09/09
Posts: 44
Loc: SE Indiana
I am under the same impression
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1999 Dodge Ram 1500 318 4x4 Valvoline Synpower, Wix 51515 filter, External tranny filter

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#1532485 - 07/15/09 07:05 AM Re: Bosch vs K&N? [Re: y_p_w]
mimelio Offline


Registered: 01/28/09
Posts: 135
Loc: New York


BOTH MADE BY CHAMPION LABS

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