I need help understanding, as an example, how 600 PPM zinc will provide the exact same wear protection as 1800 PPM zinc in let's say the first 100 miles of use since it's probably safe to say it will not have been sacrificed. that period of time.
We all could use help understanding Zinc... because zinc is not even
a lubricant until heat and load are applied. Zinc is only used when there
is actual metal to metal contact in the engine. At that point zinc must react
with the heat and load to create the sacrificial film that allows it to protect
flat-tappet camshafts and other highly loaded engine parts. So its possible
at normal street speeds you may never have to use Zinc protection...
The consensus among the experts warns of too much Zinc not less Zinc...
1. Well known and respected Engineer and Tech Author David Vizard,
whose own test data, largely based on real world engine dyno testing,
has concluded that more zinc in motor oil can be damaging, more zinc
does NOT provide todays best wear protection, and that using zinc as
the primary anti-wear component, is outdated technology.
2. The GM Oil Report titled, Oil Myths from GM Techlink, concluded
that high levels of zinc are damaging and that more zinc does NOT
provide more wear protection.
3. A motor oil research article written by Ed Hackett titled, More
than you ever wanted to know about Motor Oil, concluded that more
zinc does NOT provide more wear protection, it only provides longer
4. This from the Brad Penn Oil Company: There is such a thing as too
much ZDDP. ZDDP is surface aggressive, and too much can be a
detriment. ZDDP fights for the surface, blocking other additive
performance. Acids generated due to excessive ZDDP contact will
tie-up detergents thus encouraging corrosive wear. ZDDP
effectiveness plateaus, more does NOT translate into more protection.
Only so much is utilized. We dont need to saturate our oil with ZDDP.
5 Blackstone Labs Motorcycle data...
A cold start is a normal operating condition... your RPMs and
energy are not high enough to activate the zinc additive... zinc
can only react with a metal surface when the reaction energy
(temperature) is high enough like during red line racing