[Land-speed] Synthetic oil

[Jim Dincau]

Hi all,
     The literature that came with my gapless ring package cautions about 
using synthetic oils for break in. Coming from a blown alcohol background I 
am unfamiliar with this concept of "break in". This is an unblown gas engine 
with roller lifters so I am not worried about any lack of zinc. Anyone have 
any experience with gapless rings and initial start and run?
Jim in Palmdale