That makes sense. Part of the point of synthetics is reduced drag, and
the synchronizers rely on drag to bring the gears to the same speed
before engaging.
Chris K.
Robert E. Shlafer wrote:
>"No oil in the dashpots"
>
>I've heard of SU's used strictly for racing
>where the air valve is modified and stays
>in the wide open position. Basically, it's
>been turned into an open throat carb.
>and is totally unsuited to street use.
>
>I don't know anything about "crash" boxi
>but synchros in our boxi were produced
>with petroleum based oils in mind, as were
>the Datsun 5 speeds we use in conversion.
>
>In my Dat. 5 speed....
>I use synthetic gear oil in the winter 'cause
>it makes shifting so much easier after initial
>start however, once the gear box warms up,
>the synchros are very easy to beat.
>
>Once Spring arrives, I change back to petroleum based gear oil....synchro
>action is
>a helluvalot better than with the synthetic.
>
>Cap'n Bob
>'60 Frog
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