If you believe the info on the ZDDPlus website, one bottle of the stuff is not
enough for a 7-quart 3000 engine oil change. The bottle is sized for a typical
4-quart plus 1-quart-for-the-filter oil change. One bottle is 4 ounces, and to
reach the zinc and phosporus levels ZDDPlus recommends 7 quarts requires 5.6
ounces (0.8 ounces per quart).
Steve Byers
HBJ8L/36666
BJ8 Registry
Havelock, NC
---- Editorgary@aol.com wrote:
> Roger Moment get an email circular today from Eastwood Company, advertising
> that they will include a $9.99 bottle of ZDDPlus with any order of $75 or
>more.
> I think this is the same product that Moss now has available in their
> catalog.
> An informal and highly unscientific survey of various long-distance Healey
> drivers at the San Diego meet suggests that most are simply specifying 20W50
>oil
> when they do their oil changes if their engine is well broken-in, and no one
> seems to be having any problems. My theory is that either the typical 20W50
> still has enough ZDDP in it to provide ongoing protection, and/or that
>broken-in
> engines don't really need much zinc.
> Cheers
> Gary
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