bump this shit

where the fk do u all get these numbers from????????????

gearbox oil change evry 40k kmz?? every 20k kmz? som1 even said do it with every engine oil change???????

what are u driving on the track evry day? ive never heard of any1 changing gearbox oil so frequently.......

just quoting my service manual, they dont bother changing gear box oil until 120k kmz....let alone evry 40k kms or less...