What is ZDDPlus™ ?
ZDDPlus™ is an oil supplement that contains very high concentrations 
of the well-known additive ZDDP (Zinc Dialkyl-Dithio-Phosphate), 
which has been the primary EP (Extreme Pressure) ingredient in all 
quality motor oils for over 70 years.

Why do I need ZDDP ?
The EPA has put stricter emission requirements on new cars, which 
have influenced manufacturers to remove ZDDP from motor oils. If you 
have an older car that was specified to use SF or earlier motor oil, 
its design requires ZDDP. Your car could be damaged with the use of 
modern SM oils.

What do the oil grades such as "SF" indicate ?
In the API (American Petroleum Institute) Classification System, "S" 
and "C" are the two basic application categories of oil. "S" is 
intended for gasoline use and "C" is intended for diesel use. "A" was  
the first grade in each category and resulted in "SA" and "CA" grade  
oils. Each progressed farther up the alphabet as new grades of oil 
were introduced. The newest grades are "SM" and "CJ" respectively.

Aren't the newer oils better than the older oils ?
Historically, every new grade of oil introduced since the 1930s was 
better than the previous grade and could be considered "improved" 
with one exception. The original SA grade was straight mineral oil 
(non-detergent and without additives) and SB contained additives, 
which could not be used in the earliest cars specified for SA. While 
it is true that SM oils are better for newer cars, they are not 
better for older cars.  Simply put, the newer and/or better oils are 
not backward compatible for older cars, primarily due to the gradual 
reduction of ZDDP starting with SG grade in 1988.

How much ZDDPlus™ should I add to my oil ?
One bottle of ZDDPlus™ will raise the ZDDP level of SL or SM spec oil 
to the standards that were in place when SF (or earlier) oil was 
specified.

What if my oil already contains some ZDDP ?
ZDDP is most effective if the concentration is between 0.18 % and 0.2 
% by weight. Tests have shown that concentrations above this amount, 
up to as much as several percent have no effect except to prolong 
additive life.

Can I use ZDDPlus™ with regular and synthetic oils ?
ZDDPlus™ should be compatible with all conventional and synthetic 
oils intended for automotive use. Virtually all of these oils have 
contained higher amounts of ZDDP for years and only recently have the 
levels been decreased.

What is the shelf life of ZDDPlus™ ?
The shelf life of ZDDPlus™ is essentially the same as regular motor 
oil (many years) as long as a few conditions are met. The temperature 
should be kept below 120 degrees F and above 0 degrees. Until it is 
mixed with motor oil, ZDDPlus™ has a tendency to absorb moisture, not 
unlike brake fluid. Absorption of water will degrade its performance; 
however, the ZDDP can be restored by slowly heating to a temperature 
slightly above 100C.

When should ZDDPlus™ be added ?
ZDDPlus™ can be added anytime, but the best time is whenever the oil 
is changed. A single 4 oz bottle ZDDPlus™ provides the proper 
concentration for a 4- to 5-quart oil change.

How long does ZDDPlus™ last ?
Minute amounts of the ZDDP molecule in the ZDDPlus™ form a necessary 
sacrificial additive which becomes depleted upon use. ZDDPlus™ is 
designed to last the life of a normal oil change for your vehicle; 
however, attention should be given to the categories of service known 
as "normal" and "severe." The severe category includes stop-and-go  
driving and short trips, and results in shortened service life. Not 
only is the service life of ZDDPlus™ decreased, many other oil 
additives suffer as well.

Why should ZDDPlus™ not be used on OBD cars ?
The key ingredient of ZDDPlus™ is ZDDP, which has been known to 
shorten catalytic converter life. Manufacturers have been redesigning 
engines for the last decade to minimize the need for ZDDP in order to 
lower emission levels.

Why not just use diesel rated oils since they contain higher levels 
of ZDDP ?
Diesel engine requirements are much different than those of gasoline 
engines. The higher speeds and lower bearing surface-to-power ratios 
of gasoline engines require oil with higher shear ratings than most 
diesel oils. Diesels also have higher bearing clearances, which call 
for higher viscosity oils. The additional detergents required for 
soot control actually reduce the effectiveness of added levels of 
ZDDP found in diesel oils.

How does ZDDPlus™ compare to EOS ?
Historically, EOS was the most concentrated ZDDP supplement 
available. It was intended to boost ZDDP  levels of oils that already 
contained EP additives. ZDDPlus™ is packaged in a 4 oz bottle and 
contains twice the amount of ZDDP than there is in a 16 oz bottle of 
EOS. Therefore, it takes two 16 oz bottles of EOS to equal the same 
concentration of ZDDP in one 4 oz bottle of ZDDPlus™.
ZDDPlus™ is intended to be used with newer oils with little or no ZDDP.
EOS was discontinued by General Motors in the second quarter of 2007.

What about the claims of the various additives ?
We make virtually no claims for ZDDPlus™ except it restores the EP 
function of the oil to the level originally required for your older 
car. Other additives make claims so ludicrous; they cannot be 
accepted based on common sense alone. Consider, for example, fuel 
mileage. The only proven fuel mileage claim is that of the newer 
lower viscosity API rated energy conserving grades of oil which claim 
1.5% for the Type 1 EC, and 2.7% for the Type II EC oils. Note - This 
claim is in percent, not mpg. If an additive was to actually boost 
fuel mileage 20% or more, then auto manufacturers would have found 
the very cheapest method possible to increase their CAFÉ fuel 
ratings! If there was any truth to these claims, virtually every car 
built would certainly leave the assembly line with those products 
installed!

Can an oil or additive have Zn and not P and still contain ZDDP ?
It is important to note that the wear protection properties are due 
only to the characteristics of the ZDDP molecule and not to Zn or P 
in the oil in other forms or from other sources. This means that if a 
particular motor oil mentions the addition of Zn alone, or P alone, 
the ZDDP molecule is not present in that motor oil. The ratios of Zn 
and P can be manipulated by simply adding zinc salts or phosphates, 
but again, this does not produce ZDDP and has no anti-wearing action.

Lastly, depleted ZDDP releases Zn and P into the motor oil and testing
for levels of either of these pure elements is not a gauge of the status 
of the ZDDP level. What does this mean? If you see an oil additive or 
motor oil specifying only a level of Zn without a level of P, then 
there is no ZDDP in that product.

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                                    P.O. Box 75, Hopewell Jct., NY 12533
                                    (845) 226-7057
                                    Toll Free: 1-800-677-4463
                                     www.mr-shine.com