TECH BLACK GOLD
We created this pie chart from data
from Driven Racing regarding the
relationship between zinc (and by
inference – phosphorous) and detergents
in break-in oil versus passenger car oil.
High detergent levels in break-in oil
do not help the break-in process.8
ADDITIVES AND WHAT THEY DO
Additive Purpose
Calcium Detergent
Sodium Detergent
Magnesium Detergent
Phosphorous Anti-Wear
Zinc Anti-Wear
Molybdenum Friction Modifier
Boron Extreme Pressure
Silicon Anti-Foam
Titanium Anti-Wear
Detergents – Calcium, sodium, and
magnesium. These materials are used to
carry dirt in suspension until the oil filter
can remove it. Calcium is by far the most
popular, although the new SN+ oil limits
its use. Magnesium is less popular mainly
because it is more expensive although
some oil companies use it to enhance the
anti-corrosion protection. There are limits
for these additives as excessive detergent
concentrations can cause issues with ash
deposits from the detergent itself.Anti-Wear – Zinc and phosphorous
(ZDDP) are the most commonly employed
anti-wear additives. There are several
different ZDDP compounds, which means
even a ppm count does not tell the entire
story. Titanium is also employed, but often
only in very small amounts.Anti-Foam – Silicone is the most
commonly used chemistry to prevent
aeration of the oil. High quality, synthetic
base oils also tend to not require as much
help in this area.Friction Modifier – Molybdenum makes
a great friction reducer for engine oil but
is also very expensive at twice the cost of
ZDDP, so this is the main reason it is used
sparingly in most oils.
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