i was driving for about 30 mins in 5th gear with gn250 doing around 90 km/h. when i tried gearing down, i found that i had to step down very very hard on the gear selector to change gears. when i eventurally got into neutral, i thought perhaps i ran outa engine oil or something and topped up 100ml. i let the engine cool down for about 20 mins and then resumed my journey. i found that going through the gears eventually \