Ed,
this has been a topic in the BMW Motorcycle community for some
time, as BMW still only recommends SG grade oil for their motorcycles
for this reason.
since old grades that meet the spec are becoming more difficult to
find as oil grades continue to be modified with emissions more of a
priority than actual lubrication, BMW actually has Spectro make oil for
them that still meets the spec they want.
bottom line; BMW SG and Spectro tested out to be the best in this
regard, though i've read Castrols European formulas were said to be
close and were available by special order at good FLAPS. (i don't know
if this is still the case.)
here's the results from one test:
http://www.ibmwr.org/otech/oilreport.html#chartc
cheers!
e
On 10/Jun/10 14:31, E M wrote:
Thanks John. You don't have any numbers for it, do you? I want enough zinc
in it, not only to cover the old requirements, of both the 300, but also an
old 911 air cooled engine. I like the numbers higher too than the
recommended levels. High enough, that at oil change time, when some of the
zinc has been used up, the levels are still within the recommended levels.
Ed
300E
On 10 June 2010 16:57, John Reames<[email protected]> wrote:
M1 5w40 Formula M has higher Zinc than the other M1 oils... It's on par
with the truck/turbodiesel oil
--
John W Reames
[email protected]
Home: +14106646986
Mobile: +14437915905
On Jun 10, 2010, at 11:05, E M<[email protected]> wrote:
Interesting in the lists thoughts on this ??
http://www.bradpennracing.com/Zinc.aspx
Ed
300E
911SC
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