2ND INTO 3RD STARTING TO CRUNCH
 

got slightly more noticable lately its more notchy rather than crunching and its only when giving it a bit of stick its fine normal driving had the gearbox oil changed with the clutch about eight months ago was told could be wrong grade and could be oil breaking down when warm as its fine when cold hoping its not synchro anyone had this and changed the oil or does anyone know the best oil to use as this would be the best thing to try first.cheers