Oil Filters
Instructor
Joined: Dec 2018
Posts: 110
Likes: 6
From: SC
I think that the higher the miles the thicker the oil should be , also the hotter the area(in the south) the thicker the oil should be. Foe example Porsche mentions 0-40 and I have always used 15-50, so I think 10-40 as mentioned earlier should be ok for C5,s just my 0.2 cents
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
I'm using the NAPA Gold 100290, which is the same as the Wix WL10290. As soon as I can find them, I'm switching to the Fram Ultra XG12060 (this is a new part number so it's not readily available just yet)
Burning Brakes
Joined: Apr 2018
Posts: 1,051
Likes: 690
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Drifting
Joined: Dec 2015
Posts: 1,410
Likes: 414
From: Germantown Maryland
I totally agree. I am running Valvoline 5W-40 Dexos 2 in my C7 here in the Mid Atlantic. It is plenty hot, the car is kept in a conditioned garage and only started in winter inside and then only on days warm enough to drive the tires. Might be beneficial to use the 0 weight low end stuff in more northern climes or for winter driving/parking outside.
Last edited by raylo; Jun 21, 2019 at 07:41 AM.
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
I agree, I know a lot of people on here refuse to use anything but AC Delco, especially while under warranty, but if they saw the two of these filters opened up they would clearly see the Wix (and NAPA Gold) is constructed much better (and it's even more obvious if you compare the Wix to the newest design of the AC Delco). And what you can't see is that the filtering media of the Wix made filters are more efficient than the AC Delco. They filter down to 99% at 20 microns, while the AC Delco is only 99% at 35 microns. In the long run this means cleaner oil and less engine wear with the Wix.