Originally Posted by
houston
look at it this way , you know when you rent a trailer from u-haul and it says 45mph all over it


get the picture now
byrons race 3000 is 30% nitro 11% oil package , best for engine break ins , byrons pro driver is 30% nitro and 9% lube package , racing fuel!!
i dont recommend break ins with pro driver

I see. I'm mostly club racer and occasional big races. Shall I just do the 3000 for the life of the motor for longer life span.