I feel like I come here too often with questions and not answers. But here I
am again... this time, my '94 F150 5.8 has a coolant leak somewhere. I can't
track the leak very well to the source. The coolant is also not even close
to green. It's sludgey and brown. I mean, how often do you have to change
this stuff?! (Flushed & replaced new coolant last year in October) Is it
possible something is leaking into the coolant? All the other fluid levels
and colors look fine. I'm taking it to the shop tonight, just wanted any
thoughts you all might have. Does coolant usually leave a horrible residue
on your driveway that looks more like battery acid than anything else?

Mike W.