I've seen this thread before but never paid attention to the actual type of fluid being used. I'm surprised that it requires a gear oil. Many modern manual transmissions (T5, T56, TR6060) have tighter tolerances than "old-school" manuals and use a much lighter automatic transmission fluid. Good thing I double-checked this thread. I'm approaching 50K miles and will probably do this soon.
Obtain two quarts of 75w-80 gear oil
View my fuel log 2015 Mirage ES 1.2 manual: 51.4 mpg (US) ... 21.9 km/L ... 4.6 L/100 km ... 61.8 mpg (Imp)