hey guys, this question has probably been talked about before but i dont think it has for the corolla sportivo in particular... in normal driving i shift at around 3.5k when cold and 4k when warm. in thr manual, the recommended shifting speeds are as follows: 1st to 2nd - 30kph 2nd to 3rd - 40kph 3rd to 4th - 65 kph 4th to 5th - 72kph 5th to 6th - 80kph knowing this, is it ok for the gear box and/or engine to be cruising on 6th at lets say... 50kph or 60kph? Fuel efficient yes, but in the long term, going too high a gear at low speed would damage the gear box... atm, i cruise in 4th from 50kph on a straight road and 3rd on an incline... anything below 40kph i do 2nd and 1st bloew 20kph... also i don't really use 6th until i hit around at least 80 to 90kph whats your opinion guys? cheers :)