The level of consistency of each grease is then expressed using these NLGI grades. Thus, NLGI grade 000 grease, for example, is fully fluid; NLGI grade 0 grease, on the other hand, is described as being very soft; NLGI grade 1, on the other hand, is soft; NLGI grade 2, normal; NLGI grade 3, firm; and NLGI grade 6, quite hard