Can anyone please guide me about gear oil for Civic 2011 Reborn Manual. (170,000km) I saw that the clutch pedal was making squeaky noises when releasing. Also, the gears are not as smooth as they were before. I went to Honda Service and they said that manual cars don't need gear oil, unless it leaks. And further suggested my problem could be fixed by a new clutch plate. I was a bit surprised as I thought manual cars need gear oil after every 40k km.
Furthermore, the acceleration and pickup of the car is also not as good as it was before, so it has got me thinking it may be a clutch problem.