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Oil filter for a 1974 base 2 door Sedan

Bobby T

By Bobby T,
in BMW 2002 and other '02

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Bobby T Rookie

Bobby T

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Hi, I just purchased a 1974 2002. I am a little confused as to which Oil filter Brand and part number to use. I reserached the Fourm for previous infromation on this subject and noticed Mahle filter part number of OC 25.  However, when chcking some of the parts suppliers some say OC 25 and other OC 84.  Which is correct?   What other Brands and part numbers should I look for?

 

Thanks

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TobyB Grand Master

TobyB

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https://www.fcpeuro.com/BMW-parts/2002/?year=1973&m=20&e=819&t=6&b=5&d=3720&v=&keywords=oil filter

 

Probably either.  It's a very standard filter, and as far as we know, the only way to mess it up is

to put a cheapo on it and then never change the oil.

 

t

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"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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Mike Self Grand Master

Mike Self

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Anyone know what a Mahle OC84 filter is, then?  I have a couple of each (all door prizes from Mid America over the years) and they look identical.

 

mike

'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

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modernbeat Contributor

modernbeat

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I don't know the Mahle specs since our shop typically use Wix oil filters, and Mahle doesn't make their specs easy to find.

 

For a stock-ish street driven 2002, filter 51374 is a bypass filter set for 8-11 psi and is 3.5" tall.

 

For a more performance oriented filter I'd use a full-flow version. Wix 57181 has the same specs but is full flow.

For a car that will be tracked or used only in warmer (not freezing) weather, I'd use Wix 51315. It's 1.3" taller and has a higher bypass rating of 16 psi.

Engineer at https://vorshlag.com

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Mike Self Grand Master

Mike Self

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5 hours ago, modernbeat said:

For a stock-ish street driven 2002, filter 51374 is a bypass filter set for 8-11 psi and is 3.5" tall.

 

For a more performance oriented filter I'd use a full-flow version. Wix 57181 has the same specs but is full flow.

For a car that will be tracked or used only in warmer (not freezing) weather, I'd use Wix 51315. It's 1.3" taller and has a higher bypass rating of 16 psi.

Anyone know how those WIX numbers relate to the Mahle numbers? 

 

Many years ago, when 2002 oil filters were difficult to find, I bulged (but not split, fortunately) a similar Purolator filter that was meant for an Opel Kadette.  Exactly the same dimensions and threads, but unbeknownst to me, no pressure relief valve.  It was a cold morning and my engine generated more oil pressure than the filter could stand.  I wrote to Purolator and was told that the filter meant for a BMW had a pressure relief valve, but the Opel filter didn't.  Lesson learned:  just because they look alike doesn't mean they're the same.

 

mike

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'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

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modernbeat Contributor

modernbeat

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3 hours ago, Mike Self said:

Anyone know how those WIX numbers relate to the Mahle numbers? ...

mike

If I could find specs on the Mahle parts I could match them up.

 

Wix has a lookup tool on their site. You can search by application (car model), dimensions or by interchange with other brands.

Plugging the Mahle numbers into the Wix site:

Mahle OC25 and OC84 both equate to WIX 51288

 

Looking at substitution charts, they claim the WIX 51374 can be used to replace any Mahle OC21, OC25, OC25OF, OC55, OC63, OC74, or OC84. What the specs of those filters are? Who knows?

 

And for those of you that suffer from German-itis, and think if it's from Germany it's got to be better, WIX filters are MANN filters.

Edited by modernbeat
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Engineer at https://vorshlag.com

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RoadTripper Apprentice

RoadTripper

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Oh no! I put a Wix 51374 on my 1975 2002 base! Will it blow up?

 

Seriously though, I believe the 51374 is a direct replacement for the OC84 which is what should be run on the base 1975 2002 anyway? There was also an STP filter that came up as a direct replacement, S3816. I think the Wix has a silicone drain back valve where the STP drainback valve isn't silicone....the cost difference was 2x. Just for reference, the Wix cost only three bucks less than the Mobil 1 1-102 which should work as well....

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jimk Grand Master

jimk

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1 hour ago, RoadTripper said:

I think the Wix has a silicone drain back valve where the STP drainback valve isn't silicone..

Amsoil uses xxxxx because the other materials stiffen in the heat.

Oops, it's silicon.  I should have looked first at the spec sheet.

Edited by jimk

A radiator shop is a good place to take a leak.

 

I have no idea what I'm doing but I know I'm really good at it.

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