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I know this is an old old topic, but I can't find it anywhere in the forums. What is the preferred oil filter for the LS1 (2004)? For some reason I thought there was a Mobil 1 filter but the guy at Advance Auto parts said he didn't know that Mobil 1 sold filters. If they don't, which is the best to use?
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Originally Posted by lemansbleu2004
I know this is an old old topic, but I can't find it anywhere in the forums. What is the preferred oil filter for the LS1 (2004)? For some reason I thought there was a Mobil 1 filter but the guy at Advance Auto parts said he didn't know that Mobil 1 sold filters. If they don't, which is the best to use?
Tom
Check with L.A.P.D. or Ken Fichtner Chev for the Delco UPF44. This is the premium Delco filter preferred by many members. (You may have to order a case lot of 6 though) As far as I know, Mobil1 still makes a filter for the LS1 but I don't have the part number. Maybe someone else will chime in here with it. HTH
Check with L.A.P.D. or Ken Fichtner Chev for the Delco UPF44. This is the premium Delco filter preferred by many members. (You may have to order a case lot of 6 though) As far as I know, Mobil1 still makes a filter for the LS1 but I don't have the part number. Maybe someone else will chime in here with it. HTH
Robert
I use the UPF44 also. And yes, Mobile 1 does make a filter for the C5 but I don't remember the number either.
I recently pulled off my UPF44 and threw it in the garbage can. Now running a Balwin B31 and my oil pressure is much better.
When you say that your oil pressure was "much better." what do you mean? Was it higher, lower or more constant (less variation)? And does the oil pressure sensor sense pressure upstream (between pump and filter) or downstream (between filter and bearing journals) of the filter?
Mobil 1 does have a filter. It's number M1-107 and available from Auto Zone and Mid America to name a couple sources. I use them and they have increased the oil pressure 2 to 4 lbs over the stock filter.
I noticed about a 5 psi difference at hot idle. Also, I am now curious when the weather cools off whether the oil filter was playing a role in the startup tick that everyone complains about, especially when the oil is cold. Will get that answer in a couple of months when the temperature starts to drop.