Will it hurt to put low viscosity hy-gard transmission and hydraulic oil on the front differential of a 4x4 Honda ATV?

Using low viscosity Hy-Gard transmission and hydraulic oil in the front differential of a 4x4 Honda ATV is not recommended. The differential requires specific gear oil that meets the manufacturer's specifications for viscosity and additives to ensure proper lubrication and protection. Using an incorrect oil can lead to inadequate lubrication, potential damage, and reduced performance. Always refer to the owner's manual for the appropriate fluid type.