Every car that I ever bought with more than 100k miles I went into it knowing that I will be replacing all the fluids. Coolant, oil, brake fluid, ps fluid etc. I also replace all the coolant hoses and thermostat as well. Spark plugs and wires were also changed. Brakes were gone over and if needed replaced. It did not matter if the seller told me that this stuff has already been done. Did them anyway. Piece of mind is worth way more than a few dollars saved
Don