I ran straight 30wt in my Spitfire J OD transmission.
Nolan Penney wrote:
>
> With modern cars running things as light as ATF in their transmissions
> and differentials, and back dating recommendations for lighter oils, I
> find myself seriously pondering using something other then the molases
> that a Spitfire normally calls for. As weak as the Spitfire engine is,
> gaining a few hoursepower by reducing drivetrain drag would be a
> significant percentage gain.
>
> ATF would probably do fine in the transmission. It works well in many
> other manual transmissions, so the average synchro seems able to handle
> it. Ford makes a nice tractor lubricant known as 134 that should work
> in the transmission and the rear end. Then there is the Redline
> synthetic product lineup.
>
> Have any of you any experience in running alternative gearbox and
> differential lubricants?
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