Hi,

I asked a follow up question to blackstone labs about virgin oil
analysis. Molybdenum Disulfide is a fairly new anti-wear additive
which is touted as state of the art. Zincdithiophosphate is a tried an
true anti-wear additive.

For example Mobil 1 and Redline contain Molybdenum Disulfide, but other
reputable and highly regarded oils such as Amsoil and Delvac 1 do not.

Molybdenum Disulfide is expensive.

Anyway, I asked the following follow-up question about SAAB
semi-synthetic 5W-30 virgin oil analysis.

>Hi,
>
> I was surprised not to find any Molybdenum in
>this oil. Do the other anti-wear additives, such
>as Zinc, help in reducing wear in cases where
>oil is driven out between bearing surfaces under
>hard acceleration and high torque?
>
>thanks
>
>Jae
>

Blackstone Labs' answer is the following:

"Jae: Some oils use Molybdenum (is the oil as Molybdenum Disulfide) and
some don't. This oil does have a lot of Phosphorus and Zinc (in the oil as
Zincdithiophosphate) and this is a good anti-wear additive, so they think
the oil doesn't need any Molybdenum. These levels of additive would be
suitable for diesel engine use and are generally higher than what we see
from most 5W/30. It should do well in your engine, even in hard driving
situations. Let me know if you have any more questions.

Sincerely,
Ryan Stark
Blackstone Labs"

So, someone who's job is to look at oils thinks this oil is good.
It is true that we don't know how this oil stands up to longer oil
intervals, but as Greg says, if you stick with 5,000 mile oil change
interval, you should be fine with this oil.

thanks

Jae

posted by 167.4....

• Follow-up on SAAB semi-synthetic 5W-30 virgin oil, J, Tue, 1 Apr 2003 12:10:33 <-- Viewing This Message
  • great info! i'm switching to 5w-30 semi-synth!, Jason 0W-40, Tue, 1 Apr 2003 23:12:58
    • Nice try ... What would you do with 6 gallons of 0W-40, J, Tue, 1 Apr 2003 23:20:23
  • But would you eat it??, MisplacedYankee , Tue, 1 Apr 2003 22:43:31
    • You're next ... MisplacedYankee!, J, Tue, 1 Apr 2003 23:15:00
      • Yeah well see:) -- Chemistry is not my forte n/m, MisplacedYankee , Tue, 1 Apr 2003 23:39:05
  • Re: Follow-up on SAAB semi-synthetic 5W-30 virgin oil, TG, Tue, 1 Apr 2003 15:17:33
    • Well, it seems to be several jugs of Semi synt oil out>, SWEDECAR , Tue, 1 Apr 2003 20:52:20
      • The Molybdenum compound of interest is ..., J, Tue, 1 Apr 2003 20:58:52
        • molybdenum dialkyldithiocarbamate ....., REM in Seattle , Wed, 2 Apr 2003 11:04:24
          • The Abstract ..., Greg Netzner, Wed, 2 Apr 2003 12:15:57
            • Have no idea how all this works..., REM in Seattle , Wed, 2 Apr 2003 13:07:13
        • Re: The Molybdenum compound of interest is ..., TG, Wed, 2 Apr 2003 06:12:23
          • Of VOAs & UOAs, Greg Netzner, Wed, 2 Apr 2003 13:09:34
            • Out of context, TG, Wed, 2 Apr 2003 18:13:45
              • See how much difference more information makes?, Greg Netzner, Wed, 2 Apr 2003 23:12:06
                • Re: See how much difference more information makes?, TG, Thu, 3 Apr 2003 06:03:13
                • The thing about credentials is ..., J, Wed, 2 Apr 2003 23:47:47
            • Also ..., J, Wed, 2 Apr 2003 13:40:41
    • Picture of Euro Spec. Semi Synthetic oil ..., J, Tue, 1 Apr 2003 16:30:44
      • This label doesn't have the "Moly" text written. n/m, SWEDECAR , Tue, 1 Apr 2003 20:55:02
        • Closer look of "old" Euro Spec. oil says "A3/B3", J, Tue, 1 Apr 2003 21:18:29
          • Sorry ... in-line, J, Tue, 1 Apr 2003 21:19:45
    • TG ... do you at least have a picture?, J, Tue, 1 Apr 2003 16:01:09
      • Re: TG ... do you at least have a picture?, TG, Wed, 2 Apr 2003 06:47:06
    • TG ... you can do oil analysis too. n/m, J, Tue, 1 Apr 2003 15:52:47
  • Let me guess, Lou, Tue, 1 Apr 2003 15:10:22
    • . Warning! . Soapbox Alert! ., Greg Netzner, Tue, 1 Apr 2003 19:02:31
      • Great philosophy, G'man!, J, Tue, 1 Apr 2003 19:33:07
        • Thanks Jae, LHD, Tue, 1 Apr 2003 19:42:38
    • Have a beer and chill out buddy. Jeez ... No one's ..., J, Tue, 1 Apr 2003 16:03:16
  • Phosphorous and Catalytic Converters, Stephen Goldberger, Tue, 1 Apr 2003 14:09:25
  • Re: Follow-up on SAAB semi-synthetic 5W-30 virgin oil, Dean, Tue, 1 Apr 2003 13:25:07
    • Link for you., J, Tue, 1 Apr 2003 13:47:57
    • Who are you ... Schroedinger?!? :-), J, Tue, 1 Apr 2003 13:42:00
      • OK... you are on!, Dean, Tue, 1 Apr 2003 15:00:38
  • I guess I didn't ruin my engine after all., lowbar, Tue, 1 Apr 2003 13:17:25
    • Yup ... that _is_ strange., J, Tue, 1 Apr 2003 13:44:11

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