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Re: dura lube and other a
-=> Paul Dansereau illuminates us with <=-
PD> I haven't got one positive reply to this post, I won't be using any
PD> additives, I have a feeling I would be shunned from the list if I did
PD> ( kidding), but I will obviously be doing the regular oil changes etc.
Smart choice, here's a reply I posted to a similar post, it's
probably in the archives too, but the bandwidth is low on
A chemist from Lubrizol Corp. (makes oil additives for
the large oil companies) explained it very simply to me. Motor
oil is like a cake recepie. So many pinches of this additive,
a teaspoon of that additive etc. until you come out with as
perfect a "batter" possible. These aftermarket additives which
basically contain massive amounts of chemicals already present
in the motor oil mix, are like adding an extra pound of sugar, or
flour etc. to the cake mix. It doesn't improve the product, and
most of the time is actually detrimental. An example is additives
which contain high amounts of zinc dialkyldithiophosphate.
Zinc is added as a last-resort barrier to metal/metal contact between
parts in the absence of any lubricating oil. The amount present
in motor oil is 0.1% to 0.2%, by adding the various snake-oils
on the market with zinc, you're not getting any extra protection,
(unless your normal driving habits include driving without oil
in the crankcase on a daily basis) and it causes deposit formation
on valves, spark plug fouling, and premature damage and deterioration
of catalytic converters.
The other additives present in these snake-oils do
similar things to your vehicle.
... Always remember you're unique - just like everyone else.
___ Blue Wave/386 v2.30