Quote:
Originally Posted by JBF
On the overfill topic, he stated that in an overfill scenario the oil may foam, at which point it will escape from the breather/overflow. The issue can be that when it foams and escapes from the breather it can then lead to a subsequent under-fill situation. He doesn't believe an overfill in itself will lead to excess pressure in the transmission or any type of seal damage.
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No issue with pressure, typically, but if the fluid foams it will not lubricate properly. Those air bubbles do not lubricate the same as the fluid does. Typical damage is related to that lack of lubrication.
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