Wet hubs on boat trailer?

[JUS1MO]

My trailer has the wet hubs that are filled with 90W oil. Is there any maintenance that should be performed on these hubs? If so, how often?

[Keith K]

if nothing is leaking,gust check oil level should be good for many miles.if it wories you stop an check hubs for heat they should feel about like hubs on truck.on a hot day if sun is on one side it will feel guite a bit warmer.hope this helps.if seals start to leak you will see oil around them.