That is a high zinc level. Good to know as now I can consider that oil as a
cheaper alternative to the expensive Brad Penn and Valvoline VR1 I use in my
older cars for their high ZDDP content.
Sent from my iPhone
On Mar 18, 2012, at 10:32 AM, Jaime Kopchinski <jaime...@gmail.com> wrote:
I'm a bit surprised the zinc is so high in both... is it generally known
that zinc is being reduced in modern oils in general? I'd guess that Mobil
1 0w20 would fall under this category... hmmm.
Zinc in the 1200-1300 range isn't bad, no?
Jaime
On Sat, Mar 17, 2012 at 3:03 PM, Larry T <l02tur...@comcast.net> wrote:
Speaking of Oils and Walmart's Branded Oil "Super Tech 15W40", I had the
Lab test a sample from a new bottle of this that I had just bought at
WallyWorld. See the 1st column below -
Since I didn't run these Oils in my cars the only numbers that tell a
story are the Additives - all other values are dependent on engine use.
So, we have the following Additive Levels -
Sodium - 7 15
Potassium - <10 <10
Molybdenum - 42 164
Phosphorus - 1124 1375
Zinc - 1262 1328
Calcium - 1105 3456
Barium - <10 <10
Magnesium - 835 53
Antimony - <30 <30
Vanadium - <1 <1
A test of a new sample of 0W20 Mobil 1 has Additives with values shown in
the 2nd column.
Obviously, the big differences are in Molbdenum (a lubricating additive
and in some situations a indication of Ring Wear), Calcium and Magnesium.
There are some minor differences in the ZDDP additives whose abilities are
pretty well known.
The Calcium is used as Detergents, dispersants, acid neutralizer.
The Magnesium is used as a Dispersant, detergent additive, alloying metal.
I will leave it at that - I have 1 or 2 other samples of new oil that was
done -- I'll dig them out and see if they are relevant -
Have a great weekend!
LarryT
91 300D
On 3/15/2012 9:41 AM, Dieselhead wrote
You can use M1 or Amsoil for Diesel engines rated CF in any aluminum head
(OM60x) MB Diesel with extended change interval. You can use M1 CF rated
in iron head (OM61x, OM621, OM636) MB Diesels with good results with normal
change intervals. Some extended interval might be possible, but you need
to use oil analysis to determine soot levels to arrive at change intervals.
THe OM60x engines don't get as much soot in the oil as the iron head
engines do. ULSD fuels in theory should produce less soot in the iron head
Diesels too.
The arguments come in whether the CI rated M1 oils still contain high
enough levels of some components to adequately protect older Diesels.
Beware of Castrol syntec and other "synthetic" oils. They provide NO
extended change interval capabilities. Jury is still out on Royal Purple
and Valvoline synthetic.
List member LarryT can help with oil analysis.
I use M1 in my 603s with 10k intervals and dino in the 616s with normal
intervals.
Let the arguments begin.....
I have been reading with interest the threads re the "smoking SDL" and
the
turbo issues. In them there are references to using M1 oil, and I am a
bit
confused/curious. I have been under the impression that the older
diesels
should not be using synthetic oils, and not to switch from dino to
synthetic. Am I wrong here?? Thanks
Ralph '87 300 SDL
'84 300 CD
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