While trying to find a good independent study of Mobil 1 V.S, Amsoil I came
across this, I think all of you that have been involved in this discussion
will find it interesting.
http://neptune.spacebears.com/cars/s.../oil-life.html



"Gene Kearns" wrote in message
...
On Tue, 19 Aug 2003 10:41:54 -0400, Anonymous Nobody wrote:

On 19 Aug 2003 14:38:57 GMT, (Karl Denninger)
wrote:

Its fine PROVIDED it is the correct viscosity grade and you don't use it
as
an excuse to extend drain/change intervals.

--

Why not extend drain/change intervals? What is the point in paying $5
per quart instead of $2 if you can't get longer intervals?


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Not a simple answer but....

Oil performs several tasks..... Not an exhaustive list but, it:

Lubricates - hydrodynamic, mixed, and boundary
Protects
Cools
Seals
Cleans

Synthetics do an admirable job of all these tasks (in water cooled
engines) and does not exhibit the early breakdown of mineral oils.
However, there IS a limit to the last item.....

The better an oil is at this task the shorter the period of time we
can leave it in service! Unless, of course, we have some ultra
efficient way of filtering in the ultra small micron size. That is
why you pay $12-$13 for a Mobil 1 oil filter.

Synthetic oils are not a panacea, but I believe in them and will use
them. They just can't be used forever... and there is a higher cost
of use than mineral oil..... that is more than returned by delaying
loss of use, R&R, and overhaul




--



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http://myworkshop.idleplay.net/cavern/
Homepage
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at Lee Yeaton's Bayguide






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