So what engine oil are you now using?
02-12-2008, 12:19 PM
#31
Rennlist Member
An API SJ (or SL rated, no SM) oil that also carries the ACEA A3/B3 approval. There are quite a few on the approved list that meet this criteria as well as quite a few non-approved oils that also should fit the bill for a 0w40 or 5w40 viscosity that won't cause a CEL, unlike the thicker oils. Ideally, a 5w40 will have a higher HTHS viscosity than a 0w40, so I would first go with a 5w40 for the added film strength when hot.
The closest thing to a new Porsche I have is my new water cooled VWs which call for a 505.01 spec which is just as stringent (if not more so than) as the Porsche spec. I use a VW approved Motul oil that is API SJ / ACEA A3/B3 rated that has the highest HTHS viscosity I could find ~4.9. I would probably use a Motul, Elf, Pentosin, or other specialty European-made oil if I did have a 986/996 or later engine.
The closest thing to a new Porsche I have is my new water cooled VWs which call for a 505.01 spec which is just as stringent (if not more so than) as the Porsche spec. I use a VW approved Motul oil that is API SJ / ACEA A3/B3 rated that has the highest HTHS viscosity I could find ~4.9. I would probably use a Motul, Elf, Pentosin, or other specialty European-made oil if I did have a 986/996 or later engine.
02-12-2008, 12:47 PM
#32
Rennlist Member
An API SJ (or SL rated, no SM) oil that also carries the ACEA A3/B3 approval. There are quite a few on the approved list that meet this criteria as well as quite a few non-approved oils that also should fit the bill for a 0w40 or 5w40 viscosity that won't cause a CEL, unlike the thicker oils. Ideally, a 5w40 will have a higher HTHS viscosity than a 0w40, so I would first go with a 5w40 for the added film strength when hot.
The closest thing to a new Porsche I have is my new water cooled VWs which call for a 505.01 spec which is just as stringent (if not more so than) as the Porsche spec. I use a VW approved Motul oil that is API SJ / ACEA A3/B3 rated that has the highest HTHS viscosity I could find ~4.9. I would probably use a Motul, Elf, Pentosin, or other specialty European-made oil if I did have a 986/996 or later engine.
The closest thing to a new Porsche I have is my new water cooled VWs which call for a 505.01 spec which is just as stringent (if not more so than) as the Porsche spec. I use a VW approved Motul oil that is API SJ / ACEA A3/B3 rated that has the highest HTHS viscosity I could find ~4.9. I would probably use a Motul, Elf, Pentosin, or other specialty European-made oil if I did have a 986/996 or later engine.
I am also interested in the correct application of motor oils for my classic '33 Packard Super 8.... but that is another discussion for another forum.
02-12-2008, 02:17 PM
#33
Rennlist Member
I think the CI-4 rated Mobil 1 5w40 Truck and Diesel would be a good choice for a new 986/996 as an alternative to the Mobil 1 0w40. Are there better oils? I would say yes, but at least for the time being, as long as Mobil doesn't silently replace it with the CJ-4 rated Delvac 1 5w40, it is an easy to get oil that would be satisfactory for these newer cars. For winter use, it probably is fine for an aircooled Porsche as well, but I would certainly defer to a thicker 15w40 or 20w50 for moderate to warmer climates and summer use.
02-12-2008, 05:55 PM
#34
Three Wheelin'
Redline 10W-40. Per the numbers I got from one of their chemists, its ZDDP levels are good for use in these engines.
I use their 5W-40 in my Saab turbo. Amsoil in everything else I own.
I use their 5W-40 in my Saab turbo. Amsoil in everything else I own.
02-12-2008, 10:09 PM
#35
1st Gear
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No one has mentioned Delo 400 15W40 Diesel engine oil. API Service CI-4, CH-4/SL.
I'm running this in my diesel truck, track car and my 964. I don't know the specifics but believe it's high in zinc. Am I wrong?
David G
I'm running this in my diesel truck, track car and my 964. I don't know the specifics but believe it's high in zinc. Am I wrong?
David G
02-14-2008, 05:55 PM
#36
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I'm using Mobil 1 MXT 10-40 (synthetic motorcycle oil) in my C2...I just bought the car in September and changed the oil before the winter. PO said it had Castrol GTX before...seems to be using a bit of oil but was on the Castrol also. The Mobil 1 is $10 a quart, so I will keep it in for 5,000 miles then do a UOA and see...I wanted an oil that offered all year round protection and there did not seem to be a lot to choose from with the motorcycle oils getting good reccomendations....
02-14-2008, 06:16 PM
#37
Burning Brakes
How about the Mobil 1 high mileage oil
http://www.mobil.com/USA-English/Lub...ileage_Oil.asp
It is an API SL/CF oil rather than the undersirable SM. It also has the ACEA A3/B3 approval.
http://www.mobil.com/USA-English/Lub...ileage_Oil.asp
It is an API SL/CF oil rather than the undersirable SM. It also has the ACEA A3/B3 approval.
02-15-2008, 10:29 AM
#38
Rennlist Member
All the new CJ-4 versions are completely different from their previous CI-4 versions.
02-15-2008, 10:30 AM
#39
Rennlist Member
How about the Mobil 1 high mileage oil
http://www.mobil.com/USA-English/Lub...ileage_Oil.asp
It is an API SL/CF oil rather than the undersirable SM. It also has the ACEA A3/B3 approval.
http://www.mobil.com/USA-English/Lub...ileage_Oil.asp
It is an API SL/CF oil rather than the undersirable SM. It also has the ACEA A3/B3 approval.
08-28-2008, 02:49 PM
#40
Rennlist Member
A list of the zinc levels in Mobil 1 products is here in their product guide http://www.mobiloil.com/USA-English/...duct_Guide.pdf
Note Mobil 1 15-50 has a zinc of 1200 PPM and is available in 2 versions a gold capped "Extended Performance" shown here http://www.mobiloil.com/USA-English/...ce_15W-50.aspx and a silver capped version shown here http://www.mobiloil.com/USA-English/...1_15W-50_.aspx
The gold cap has more "Supersyn" detergent package and is rated SM, the silver cap has less Supersyn and is rated SL/SM.
BTW, it turns out that API SM limitations to .08% (800 PPM) on Zinc apply only to the 0/20, 0/30, 5/20, 5/30 & 10/30 viscosity oils, for all other viscosity oils there is no restriction on Zinc this can be found on page 61 (page 65 of PDF index) of the API Oil licensing document here http://www.api.org/certifications/en...forprint-2.pdf
My question is, what is "Supersyn" and if one were going to choose Mobil 1 15-50, would it be better to use the gold SM or silver cap SM/SL. I live in SoCal and drive my car less than 500 miles per year.
Note Mobil 1 15-50 has a zinc of 1200 PPM and is available in 2 versions a gold capped "Extended Performance" shown here http://www.mobiloil.com/USA-English/...ce_15W-50.aspx and a silver capped version shown here http://www.mobiloil.com/USA-English/...1_15W-50_.aspx
The gold cap has more "Supersyn" detergent package and is rated SM, the silver cap has less Supersyn and is rated SL/SM.
BTW, it turns out that API SM limitations to .08% (800 PPM) on Zinc apply only to the 0/20, 0/30, 5/20, 5/30 & 10/30 viscosity oils, for all other viscosity oils there is no restriction on Zinc this can be found on page 61 (page 65 of PDF index) of the API Oil licensing document here http://www.api.org/certifications/en...forprint-2.pdf
My question is, what is "Supersyn" and if one were going to choose Mobil 1 15-50, would it be better to use the gold SM or silver cap SM/SL. I live in SoCal and drive my car less than 500 miles per year.
08-28-2008, 03:16 PM
#42
Rennlist Member
08-28-2008, 05:30 PM
#44
Professor of Pending Projects
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So no common agreement on what to use?... hummm... I have been using Mobile 1 15-50 since I can remember... heck! we just did two oil changes recently to a 993 and a 964 with Mobile 1 15-50.
08-28-2008, 06:17 PM
#45
Burning Brakes
so what's the opinion on the new Delo 400?