Quote:
Originally Posted by markweatherill
I doubt there is much to be gained from warm vs cold manual gearbox oil.
The main 'losses' are coming from the gears themselves. A synthetic oil with good cold performance may benefit more, or some additive like Molyslip.
In fact on a FWD car, I might guess that the gearbox casing will transmit a certain amount of heat from the engine anyway, albeit slowly.
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Depends on how cold and what oil is used. That was why I asked about his winter temps. Conventional gear lube gets to the consistency of roofing tar at -40 degrees.