thomas04 wrote:
General maintenance questions for these two fluids. I have not seen anything on this site regarding the maintenance of these components and the fluids involved. Does one need to take Jeep to a mechanic to change the fluids? Do the fluids need to be changed or just maintained at the proper level? Any in site or procedures if possible would be appreciated. Thanks.
Peace.....
Peace.....
....through superior firepower!
(forgive me, couldn't resist)I cannot speak to PS fluid (which is ATF +4,) but I have some experience with brakes.
Stock Dot-4 brake fluid IMO should be replaced yearly. It absorbs moisture through the plastic reservoir over time, which lowers the boiling point of the brake fluid. This can be a problem if you do a lot of trailer towing or other severe driving, as I do, so I decided several years ago to switch the fleet to a better fluid.
I have replaced the stock brake fluid with ATE super blue Dot4. It's compatible with other Dot-4 fluids, but has less moisture absorption, higher BP in service and other desirable characteristics. It's more expensive, but it comes in a metal can which prevent moisture uptake through the bottle, which means the fluid you get is the fluid they made, i.e. dry. I am convinced that this stuff actually saves money over the long haul by reducing the need for caliper rebuilds over time, and I *know* it reduces brake fade on steep downgrades when towing.
I'm also going to look into speed bleed screws for the calipers.