Only slight difference. 65 is to improve the suspension.175 upgrade to 185 definitely more fuel consumption.
Have a look at latest city tyre spec. They changed.

yes, you are correct, cannot believe is 160,000km or 8 years, only change, my car about 6 year, 80,000km, due to gearbox too dirty and heat up, spoil, end up change gear box at honda service center there, cost about 20k.
My advice, is to change gearbox box oil every 2 years, as no much expensive, about rm 100 to rm 200, better than need to change whole new gear box, cost 20k

Did it at my regular workshop last year. Can’t remember how much it cost, though. My gm6 is 7 yrs old now, 70k km on the clock.

Hi all, recently my car front area, when running on cold morning got kluk kluk sound from both left and right but when after driving for a while, the sound seems go quieter... Any idea what is spoiled? Car mileage around 110k.

Your steering rack got sound when turn to the maximum either to the left or right when it spoiled?