[Main 95 Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos Which Mobil-1? - Have a sample tested with TBN values Like This Post: - Subscribe to Daily Digest for this Bulletin Board Posted by MI-Roger [Email] (#882) [Profile/Gallery] (more from MI-Roger) on Sun, 10 Jul 2011 05:56:40 In Reply to: Mobil 1 beyond 5K too risky?, steve, Sat, 9 Jul 2011 22:30:46 Alert me when someone posts in this thread: Members do not see ads below this line. - Help Keep This Site Online - Signup

I had a sample of the used 5W/40 Total Quartz Energy 9000 tested that I drained out of my car at 295K miles and 5300 miles of oil useage. All the oil properties were still close to new, with the exception of TBN.

I am not a Tribologist, but the TBN (Total Base Number) measures the oil's ability to neutralize engine acids. My oil had dropped from a new condition TBN of 8.8 to a TBN of 2.4. Values below 1.0 are not recommended!

Extrapolating those numbers, my oil could have gone a little over 6,000 miles without issue. Some of the Mobil-1 oils start with a TBN above 11 which would alow them to go longer - assuming everything else stays within range.

Pay for an analysis and know for sure. A lot could depend on your individual driving conditions.

posted by 98.250.156...

_______________________________________
Saabs owned:
2008 9-5 Aero Sedan, sold at 227K miles
2006 9-3SC 2.0T - Wife's daily driver
2000 Viggen Convertible - Sold May, 2022
1964 Quantum IV Formula Car - Retirement project
2000 9-5lpt Sedan, sold at 318K miles

• Mobil 1 beyond 5K too risky?, steve, Sat, 9 Jul 2011 22:30:46
  • M1 0w40 with 10K changes, 192k 2000 lpt, dmz789qqq, Mon, 11 Jul 2011 12:22:36
    • Re: M1 0w40 with 10K changes, 192k 2000 lpt, Laurent in Mountain View, Mon, 11 Jul 2011 15:08:28
      • Re: M1 0w40 with 10K changes, 192k 2000 lpt, B Lin, Mon, 11 Jul 2011 17:16:41
  • Depends on the kind of driving..., Noel, Mon, 11 Jul 2011 06:30:52
    • Re: Depends on the kind of driving..., RobsSaab, Mon, 11 Jul 2011 10:28:00
  • Re: Mobil 1 beyond 5K too risky?, R03SAAB95, Sun, 10 Jul 2011 22:44:53
  • M1 0W40 + abusive urban driving for the most part (nm), steve, Sun, 10 Jul 2011 19:54:38
  • Re: Mobil 1 beyond 5K too risky?, Dean, Sun, 10 Jul 2011 12:14:40
  • Mobil 1 every 10k with no problems...., Sam Stoney, Sun, 10 Jul 2011 11:50:51
    • 10K!!!!! Re: Mobil 1 every 10k with no problems...., saabsince 93b , Sun, 10 Jul 2011 21:02:03
    • unrelated suspension lift question, steve, Sun, 10 Jul 2011 19:57:18
      • Re: unrelated suspension lift question, Sam Stoney, Mon, 11 Jul 2011 06:45:02
        • Re: unrelated suspension lift question, steve, Mon, 11 Jul 2011 09:10:48
  • Oil analysis, Slug , Sun, 10 Jul 2011 10:23:04
  • Re: Mobil 1 beyond 5K too risky?, Bill U, Sun, 10 Jul 2011 08:20:15
  • Which Mobil-1? - Have a sample tested with TBN values, MI-Roger , Sun, 10 Jul 2011 05:56:40 <-- Viewing This Message
    • Tested by whom?, Stephen Goldberger, Sun, 10 Jul 2011 06:21:17

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• Prev by Date: Any harm in having both?, steve, Sat, 9 Jul 2011 22:33:12
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