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26 January 2012 #1
Ivan Saab Enthusiast
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- 16 Jan 2012
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- London, Canada
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- 2003 9-5 Aero Sedan (R.I.P.), 2006 9-5 2.3T Sport, 2008 9-3 Aero SC
5w30 vs 0w40 Mobil 1
I know that oil has been discussed ad nauseum on the forums, and I've read that both weights meet the GM standards. Please forgive my ignorance, but what is the difference between these two weights? Pros and cons of each? My Saab mechanic has recommended going with 0w40. The car has had 8,000 km 5w30 changes with the previous owner.
I plan to change my oil every 8,000 km. I know the Saab interval is 16,000 km, but I just cannot take that chance.
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26 January 2012 #2
Jeffrey Master SaabTech/Moderator
- Join Date
- 25 Oct 2010
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- Point Pleasant, PA
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- 1,316
- Saab(s)
- - 86' 9KT - 95' 9K Custom CS - 06' 9-3 Combi - 07' 9-7X Arc - 08' 9-3 Convertible - 08' 9-3 TurboX -
Reccomended oil change interval is every 5-8K on 0W-40 oil. I do it every 4K on my own cars personally.
Clean oil is better then no oil in my opinion. I use what's available or on sale - and full synthetic.
As long as you change it and you are checking it periodically - do what works for you.
0W-40 has less friction then say 5W-40 or 30
meaning it's thinner and does not change consistency as much as a heavier thicker oil would like 5W or 10W and so on.
Learn/Read: Motor oil - Wikipedia, the free encyclopediaEuropean Motor Services, LLC - Point Pleasant, PA 18950 - www.europeanmotorsvc.com
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26 January 2012 #3
Frank Administrator
- Join Date
- 30 Jul 2010
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- USA - Netherlands
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- 7,901
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- previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
Mobil 1 5W-30 neither has the GM spec nor the European A3/B3 spec which is recommended for the 9-5 2.3T. So if you want to stick with Mobil, only use the 0W-40. Unless there is a difference for Canada.
Castrol Syntec 5W-40 is another good alternative which I have been using in my previous 9-5's.
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26 January 2012 #4
Ivan Saab Enthusiast
- Join Date
- 16 Jan 2012
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- London, Canada
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- Saab(s)
- 2003 9-5 Aero Sedan (R.I.P.), 2006 9-5 2.3T Sport, 2008 9-3 Aero SC
Thanks Frank, I guess that's the reason why Mobil 1's website tell me to use 0w40 for my Aero. I know that the previous owner used 5w30 and that shouldn't matter too much, but I want what's best for my car.
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26 January 2012 #5
- Join Date
- 17 Aug 2011
- Location
- Honeoye Falls, NY
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- Saab(s)
- 2011 9-3 Aero XWD Performance by Hirsch
'04+ Aeros all got the Mobil 1 0W-40, which is what I run in my car. One of my old co-workers at Saab ran it in his '02/'03 Aero without issue as did a number of our customers. Like it was said before. 5-8k is fine for oil change intervals if that is what you are using for oil. I usually go 4-5k on my own cars.
2011 Saab 9-3 Aero XWD Performance by Hirsch "Wolffe"
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26 January 2012 #6
Ivan Saab Enthusiast
- Join Date
- 16 Jan 2012
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- London, Canada
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- 173
- Saab(s)
- 2003 9-5 Aero Sedan (R.I.P.), 2006 9-5 2.3T Sport, 2008 9-3 Aero SC
Just to clarify, you're speaking in miles, correct? My interval is 8k in kilometres, which is 5k in miles.
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26 January 2012 #7
- Join Date
- 17 Aug 2011
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- Honeoye Falls, NY
- Posts
- 395
- Saab(s)
- 2011 9-3 Aero XWD Performance by Hirsch
Yes, miles.
2011 Saab 9-3 Aero XWD Performance by Hirsch "Wolffe"
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30 January 2012 #8
- Join Date
- 17 Jan 2012
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- 3
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30 January 2012 #9
Renato Piereck Spreading the Saab virus
- Join Date
- 24 Jul 2011
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- Ansbach, Germany
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- '00 9-5 Aero SC, 87 900i 8v
If it meets the standards then yes it's good for use. I was using Lubro Moly 5W30 because it met the A3/B3 standards (even though it's not an issue with the NG900, but I wanted to be safe rather than sorry). I'll be checking the Mobil 1 in the local store for A3/B3, as it's cheaper.
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24 April 2012 #10
Ivan Saab Enthusiast
- Join Date
- 16 Jan 2012
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- London, Canada
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- Saab(s)
- 2003 9-5 Aero Sedan (R.I.P.), 2006 9-5 2.3T Sport, 2008 9-3 Aero SC
Frank, is Castrol Edge 5w40 just a rebrand of the Syntec? I don't see Syntec around here anymore. The Edge is $32/5L on sale, which is an excellent price.
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