engine oil depends on what type of engine oil you are using.. usually its recommended to change after every 4000K. clean air filter after every car service or atleast once a month and change it after 10K. you will need to change the gear oil if you havent changed it yet, along with engine oil change. also change engine oil filter along engine oil change. baki tuning wagera bhee kerwa lena when u change its oil.
break service khercha hay, garee new hay so not necessary.