 What grade oil on a six SC 3.0 and up, I know...can of worms... |
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| Mark Henry |
 Jul 11 2017, 11:30 AM
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that's what I do!  Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada  |
I see Porsche classic oil for 3.0-up is 10W60, also seeing 10W60 as a recommended fill from others.
I'll be using a dino break in and dino oil for the first few changes on my new engine, just wondering what others think of this weight. Are the new synthetic better at transferring heat now and do they still have leak/weep issues? Honest not looking for a fight.... (IMG:style_emoticons/default/hide.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/c1552172.ssl.cf0.rackcdn.com-26-1499794581.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/c1552172.ssl.cf0.rackcdn.com-26-1499794583.2.jpg) |
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| IronHillRestorations |
Jul 11 2017, 12:11 PM
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I. I. R. C. Group: Members Posts: 6,833 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None 
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Depends on how much is leaking out (IMG:style_emoticons/default/hide.gif)
The shop that serviced my 964 that I just got it recommends Redline 20/50. 20 years ago, when I had a different 964 I used Mobil 1, and I don't think it has any zinc. I was of the understanding that an engine that leaks at all will leak more with synthetic. Synthetic is more stable, and in most all cases a superior lubricant, and my understanding is that it precludes the need for zinc in the oil. Some old Pano articles on this suggested that for those who want to use conventional oil, the recommendation was for Shell Rotella which is for diesel engines, and has zinc. Further reading elsewhere suggests that Rotella isn't a good choice for gas engines, but I have used it. It's my understanding that if the oil wasn't formulated with ZDDP, adding a ZDDP additives was useless. Here's an older article I found some time ago: https://www.jalopyjournal.com/forum/threads...engines.138386/ |
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Posts in this topic
Mark Henry What grade oil on a six SC 3.0 and up Jul 11 2017, 11:30 AM
mb911 Intetesting.. 10w60.. Last 3.2 ss I had used amsoi... Jul 11 2017, 11:38 AM JmuRiz I always thought it was 20w50...maybe I'll hav... Jul 11 2017, 11:39 AM Mark Henry Also the Porsche Classic oil is semi-synthetic for... Jul 11 2017, 11:45 AM Krieger I have been using Swepco 20/50 for years in my 3.0... Jul 11 2017, 11:53 AM gereed75 I have been just as confused as anyone reading art... Jul 11 2017, 12:51 PM
Mark Henry
Oh yea, Henry Schmidt from Supertech recommends... Jul 12 2017, 06:38 AM Keith914
Oh yea, Henry Schmidt from Supertech recommend... Jul 12 2017, 08:48 AM Racer I've used 15/50 or 20/50 in my 914's and 9... Jul 11 2017, 01:28 PM pete-stevers I ran 20/50 in mine Jul 11 2017, 04:03 PM flyer86d 20/50 in both my street SC and in the race 3.2 sho... Jul 11 2017, 05:15 PM 914-300Hemi I run 20/50 Valvoline VR1 in my 914 and 911 withou... Jul 11 2017, 06:37 PM mepstein We use Rotella T at the shop. The nice thing is it... Jul 12 2017, 09:05 AM Mark Henry
We use Rotella T at the shop. The nice thing is i... Jul 12 2017, 12:52 PM Justinp71
We use Rotella T at the shop. The nice thing is ... Jul 12 2017, 02:59 PM Socalandy I have a 78 SC in my car and run Driven HR1 15/50 ... Jul 12 2017, 02:38 PM PanelBilly My niece is an oil guru. Studied the stuff in coll... Jul 12 2017, 04:39 PM wobbletop I just used the LiquiMoly 10x60 in my 3.0 as I fou... Jul 12 2017, 06:42 PM Justinp71 Apparently Mobil 1 full synthetic 15-50 is a big h... Jul 13 2017, 09:58 AM |
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