Cherokee 180 soft brake - causes?

"Dave Stadt" writes:

Wow; I'm surprised.... I'd think oil would absorb air far too easily.
That's SURE to cause spongy brakes...

I've never seen or heard of oil absorbing air.

Well, overfill a crankcase and watch the oil get whipped into a
froth, and rapidly lose its lubrication qualities...

Automotive brake fluid was, ISTM, the very first federal
automotive safety standard. It must have:

High boiling point
low air absorbation
compatability with rubber lines and seals

There were a few cars, but VERY few, that needed non-standard brake
fluid. One was a friend's Hillman Minx (Mynx?) that Goodyear or
Firestone or such had put DOT-3 in; every seal was gone. The other
was the Citroen DS with master hydraulic pump that ran brakes,
steering, suspension and transmission. It used exotic "green blood"
and every owner carried a spare 10 litres or so...just in case...




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