Mobil has a FAQ on ZDDP and Mobil 1.
http://www.mobiloil.com/usa-english/motoroil/car_care/askmobil/ZDDP_Levels_Classic_Cars.aspx
Don
Saint Louis
1962 TR3B TSF202L
On Mon, May 14, 2012 at 12:12 PM, TeriAnn J. Wakeman <tjwakeman at
gmail.com>wrote:
> On 5/14/12 8:24 AM, Mack, Michael (Rochester) wrote:
>
>> I was planning on using 20w-50 Mobil 1 in my TR8. Then add some of the
>> ZDDP additive that Eastwood sells. Good idea? Flawed idea? Probably
>> cheaper that those expensive Royal Purple or Red Line oils.
>>
>>
>> I seriously thought about your idea of pouring in your favorite brand
> name oil and following it up by glugging down a bottle of ZDDP additive.
>
> But the more I thought of it the more I realized that a degree in
> Electronics & a second one in Marine Biology did not make me an oil
> chemist. Not even with a minor in chemistry. I have no idea what else is
> in that bottle of additive and how the chemicals in the additive might
> interact with the chemicals blended into the engine oil to produce
> different physical characteristics.
>
> In my own little risk aversion way I decided that I would rather go with a
> single oil solution blended from the base up to work properly in my engine
> while protecting my cam and lifter surfaces. There are professional oil
> chemists that know how their additives work together. I'm not one of them
> and I do not know whats in the bottles and how they interact to change
> their physical characteristics. I learned very early on not to just mix
> things together in chemistry class to see what happens. And was very
> thankful that the instructor did not notice.
>
> Teriann
> 1960 Land Rover Dormobile - owned since 1978
> 1961 Triumph TR3 - owned since 1986 - the new car
>
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