Low differential fluid can leave gears and bearings without adequate lubrication and cooling. Continued operation may lead to increased heat, wear, noise, and eventually serious internal damage.
Differential lubricant is not normally consumed like fuel. If the level is low, the system should be checked for leakage or another explanation, including an incorrect previous fill.
Certified Transmission at 2112 West Broadway in Council Bluffs can check the level, identify the required lubricant, and investigate the cause. Fresh fluid can restore the correct level, but it cannot reverse existing mechanical damage.