Originally Posted by garywinter
I use Castrol Magnatec. Nobody can tell me if it has that "zddp" stuff in
these oil companies are not very forthcoming with this info
have mailed both Castrol and Shell and neither have bothered to reply
there have been numerous "discussions" around ZDDP and protection against engine and in particular cam wear.
cannot say that i have seen significant cam wear on numerous engines that i have stripped.
i have seen more wear on some Td5 motors and suspect it to be as a result of poor maintenance
as a rule problems are normally found with excessive stretch of the cam chain on engines of 200k km+
much has been said about PolyTFE and some people have developed blood pressure problems as a result but there is definitely merit in the protection it will offer.