On Fri, 2 May 2008 19:19:19 -0400, "Billgran"
wrote:
"Paul" wrote in message
...
http://home.comcast.net/~team_doughe...s/results.html
From my limited knowledge of oil I would say of the 5 tested they are
all pretty much the same. With the exception of mercury and yamaha
brand. they have molybdenum in them. Not alot but some.
Some years back I wrote an article for Bass and Walleye Boats Magazine about
the differences between TC-W3 oils and did some home-brew testing. There
were element results just like your charts, but those don't mean a thing
because they only show a few of the items in a lubricant formula. Just
showing basic elements do not do a thing. Some TC-W3 oils use organic
nitrogen based additives and others use metallic based items, and the
organics do not show up on those limited tests.
If you had some food analyzed and the scientist told you that an item
contained a poisonous gas and an explosive element that would burn you
terribly if you touched it, would you eat it? You probably wouldn't, right?
Well, the poisonous gas is chlorine and the burning element is sodium.
Combined they form sodium chloride, basically table salt. Now you have a
tasty and harmless substance from two potentially killer ingredients. That
is why elemental testing on oils is just for contaminents and a trend over
time (multiple tests) showing the internal wear of an engine.
TC-W3 oils contain hundreds of ingredients if you want to count them all,
solvents, dyes, base oils, and various additives.
The moly you mention is not the solid particles like Slick 50 had in it, but
it is part of a compound that has about 20 letters in the name. It is used
as an anti-oxident as well as anti- wear in the oils.
TC-W3 requires that each certified oil have it's own unique formula and
cannot be one that is already approved. There is a lot of oil testing info
on www.nmma.org
Bill Grannis
service manager
Bill, I just bought a new Key West with a Yamaha 150 hp 4 stroke. In your
opinion, should I even consider using an oil other than the Yamaha oil
recommended for the engine?
--
John *H*