How Much Oil Should be Added to an Oil Lubrication System on Hubs

Published 10/11/2018

Products Featured in This Question

Replacement Oil Cap Kit for 9,000-lb and 10,000-lb Dexter Axle

(246)

$41.65

Kodiak Synthetic Bearing Oil for Oil Bath Hubs - 8 oz Bottle

(42)

$23.17

Question:

Parts are clear allowing visibility of grease level, but no indicator for a FILL LINE. Please advise

asked by: Sully

Expert Reply:

Basically you just want to fill the oil, like part # XLPROLUBE, up to where that center plug will fit on the Oil Cap Kit # RG04-300.

When using grease to lubricate a hub you want to fill it up completely but with an oil lubrication kit the oil is still a liquid so it will be moving in and out of the bearings while you are driving down the road. Please note that if you are switching from a grease setup to an oil setup that you need to ensure that you clean all of the grease out of your hub, bearings, and off of your spindle. The reason being that the grease will actually contaminate the oil and can cause damage to your hub system.

expert reply by: Jon G