Michael Pardee wrote:
> Y'all,
>
> A post in another car forum warned of a shortcoming API rated oils may have
> regarding cam wear. The question relates to lubricating oils with reduced
> zinc dithiophosphate (ZDDP) in engines. http://www.ttalk.info/Zddp.htm
>
> Since the most sensitive engine I know is the pre-88 PRV engine, I was
> looking for the group's input on that.
>
> Thanks!
>
> Mike
>
>
>

There is much talk about this in old car circles these days. Perhaps
the most reasonable advice I have seen is to use the dual rated
diesel/gasoline fleet oils such as Shell Rotella (or Rotella T
Synthetic), Chevron Delo and the like. These are readily available in
15W-40, which is a good summertime oil in many older applications and
can also be found in 10W-30.