[DeTomaso] Oil, re-hash

[JDeRyke at aol.com]

In a message dated 9/8/08 9:44:28 AM, adin at frontier.net writes:

> (Relative to ZDDP in oil) a flat tappet motor with lots of miles should be 
> ok w/ new oils. (I'm thinking the cam/lifters would be well run in) TRUE OR 
> FALSE????????
> 
Absolutely correct: most cam/lifter wear occurs during break-in & the 1st 250 
miles. If ZDDP is ever needed, its then. Afterwards is too late. And in any 
case, a need for friction & wear modifiers is a function of your valve spring 
stiffness and the rpms you commonly use. Stock springs in a street motor 
probably will never need it except during cam break-in. FWIW- J Deryke



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