Lawrie,
I suspect that this non-detergent thing is just one of those things
that get around enough to acquire legitimacy through reiteration. How
many dead wrong things have you seen that "everybody knows"?
I'm going to try to research the "foaming" explanation.
CR
British Sportscar Center wrote:
>
> Frank,
>
> I don't know who started the campaign to use non-detergent oil. As someone
> said earlier, there are no combustion by-products in a gearbox so there is
> no need to use a detergent oil. However, I am not aware of any damaging
> effects from the detergent additives so I see no reason to specify a
> non-detergent oil for a gearbox, with or without overdrive.
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