08/29/2026
Changing the oil and filter isn't enough. This is why.
This is the inside of a hydraulic tank before a full clean. Years of sludge and varnish build up on the walls, and none of that comes out just from draining the oil and swapping the filter. Fresh oil goes in, picks up what's left behind, and you're back to contaminated fluid within weeks.
A proper service means getting into the tank itself; wiping it down, clearing the buildup, making sure nothing old is left to contaminate the new oil. It takes longer, but it's the difference between a fix that lasts and one that doesn't.
Want to know what else we do at Brunswick Machine and Hydraulics? Check out the first comment with a link to our website.