Good Question!
My understanding is engine oil changes were "deemed necessary" because worn
street engines
were passing zinc additives into catalytic converters and caused them to be
less effective
decreasing emissions. Therefore, engine oil was adjusted (reduced zinc) to
decrease
pollution from worn-out engines.
Transmissions and gear oil don't have a similar problem. It's my understanding
extreme
pressure additives in these oils has not been reduced, and will not need to
change.
Carl Braun
________________________________
Sam & Greg wrote:
> Rich:
>
> My race vehicles have dog boxes, but I have had very good luck with
> the RedLine Shockproof. Transmission and differential gears seem to
> be lasting much longer. I can't say what happens if you have synchronizers.
>
> Greg S.
> Citation 95SF
> Ralt RT5
>
> On 5/30/2007, Rich Stadther wrote:
>
>>Listers,
>>With all the talk about engine oil and the lack of zinc additive I am
>>wondering if anyone has recommendations on trans oil.
>>I have a Ford Cortina semiclose box, like those used in the Elan, that
>>is stock and has worked well. It is probably way under stressed with my
>>little non-crossflow motor. Any suggestions on the best lube for this
>>tranny?
>>Rich Stadther
>>Ford powered Elva Courier
>>_______________________________________________
>>samandgreg@netins.net
>>
>>Vintage-race mailing list
>>Vintage-race@autox.team.net
>>http://autox.team.net/mailman/listinfo/vintage-race
>
> _______________________________________________
> clbraun@vintagerace.net
>
> Vintage-race mailing list
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