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The recent development of dual clutch transmissions (DCT) has focused upon the development of the sub-systems with the greatest novelty and hence risk, namely the clutch module and its control. A conflict arises between the oil properties required for clutch control such as low viscosity, and appropriate variation of the dynamic friction co-efficient with slip speed, overall transmission efficiency and correct lubrication of the other transmission components. It can be argued that this emphasis has biased the lube properties to the detriment of its other functions such as the lubrication and cooling of the synchronisers and gears. Accepting the oil properties required for the clutch, the paper investigates ameliorative solutions to the issue of gear life in conditions of low viscosity lubrication using alternative gear geometry, with specific interest in gear pitting.