944CS

I thought this would be a little informative to everyone - the made in Austria filter (OC-75, p/n 944.107.201.03) on the left vs the made in U.S.A filter (LS-154, p/n 944.107.201.08)

smlporsche

It looks like the Mahle filters have alot more filter media in them. Correct?

Jay W

More proof that not all filters are made the same. I notice less dry start up sound when I use a mahle too. Definitely worth ordering them online.

944Ross

My 944 came to me with a Fram on it. I'll cut it open and post here, should be good for a laugh or two...

Mike C.

Interesting...

FRporscheman

The first thing I notice is that the -03 is larger than the -08. Is there a size difference between the two unopened filters?

Jay W

Wow I didnt realize the first time that I posted that both of those were mahles. My My.

smlporsche

Where is the best place to buy Mahle's online?
Looks like buying a bunch of them at a time would be worth it.

944CS

Whatever filter you use, make sure it has an anti-drainback valve. Otherwise when you shut the engine off, the oil will drain back into the oil cooler and the filter will have to refill before the oil gets to the 1.main/rod bearings, 2. balance shafts, and 3.camshaft. The noise you hear comes from the valvetrain.

944CS

Yes the OC-75 is taller. When I order parts from Sunset and ask for an oil filter for a 944, that is the filter I get. When I ask for a filter for a 944 (even Turbo) from the local Porsche dealer, I they hand me the LS-154.

Both are quality filters compared to some of the other's I've opened in terms of construction. The OC-75 looks to have more filtering area than the LS-154, as well as being able to hold a little more oil (never checked the actual difference, I'd estimate 1/4-1/2 quart). I added a pic to the first post to show the difference in the base of the filters.

Luis de Prat

Not sure this is a fair comparison. The Mahle on the left, OC-75 is the longer, 928 size filter, whereas the one on the right LS-154 is the same size as the shorter Mahle OC-142, also made in Austria.

Not doubting the Mahle OC-75 in the photo looks to be a better filter than the one on the right, but I think we'd also need to see the innards of an OC-142 before drawing conclusions. Great photo, btw!

As for buying Mahles online, last February I ordered 2 packs of 3 OC-142 for $16.95 each from www.joetlc.com.

El Commandante

You can get them for $5.85 each at autohaus too, plus free shipping over $50. So I have always used OC-142, Should I switch to OC-75? I never knew there was an alternate Mahle filter. What does it say is the OC-75 for?

Yummybud924

I use the KN oil filter, not sure how that compares to the mahle. It's like 12 bucks each vs 5 or 6 bucks for a mahle.

FRporscheman

I have always used the oc-142; is there anything wrong with that one?

944CS

Studies have shown that the K&N is a better filter than, say, a regular Fram/Supertech/STP, but that it's not worth the premium price.

Nothing wrong with it, it's a high quality filter as well. The OC-75 will allow you to run longer oil change intervals (if you're oil is up to the task) as well as allow you to put more oil in the engine (remember oil is a coolant also)