No core trade in on these. Used is $100. New is clear out of sight. I do not agree with you at all. Used to put brake fluid, like 1/2 cup in hydraulic system on the old Farmall tractors when they started to leak past the spools. Will get you by for a year or so then rebuild them. Couple IH mechanics told me that. Now your saying that petroleum swells the seals and brake fluid don't ? ? ?
You can all my Ranger a "thing" or any other name you can come up with but at least it isn't a piece of crap Dodge.
say what you want about what I drive, but, except for 1 vehicle, I have had great service out of them, in 35 years of driving and owning nothing but Dodge.... though I agree about the newer ones not being built like they used to be, (NOT in a good way either) but that's every car/truck manufacturer. IDK where that "piece o' crap Dodge comment came from, based on what I wrote, I never said anything about degrading what you are working on at all....
but, yes, I have had to replace complete brake systems on vehicles (of all brands) over the years in my line of work, due to people putting the wrong fluid and lubricants in and around brake systems. These are different types of rubber used in brake systems,, just like different alloys of steel, different grades of gas, etc.
The rubber used in most hydraulic systems is OK with petroleum based hydraulic fluids (look at power steering for example, many actually spec out trans fluid, as the recommended fill) but the particular type of rubber used in brake systems will swell mightily, in contact with anything petroleum. and if it is inside of a cylinder, it will seize the parts together! I'm talking from the master cylinder to the calipers and wheel cylinders to metering/ proportioning valves, everything. You wouldn't put anything but brake fluid in your master cylinder of your car or truck would you? Back when we used to rebuild calipers and wheel cylinders we used brake fluid as assembly lube. Nothing else. That is unless what you are working on (I know it isn't a car or truck) specifies something other than "brake fluid" as the hydraulic media.
Take a seal from a caliper, or a cup from a wheel cylinder or dust boot from a wheel cylinder and stick it in oil or PS fluid or ATF... go look at it in a day or so and you will see what I mean. Trust me it's a different type of rubber!!!