im going over my 92 highout put and my coolant is crap brown with some green lol, and on the dipstick it has a slight scale "rust" at the top. and the oil level is fine, dirty but fine and at the very tip it has a slight milky color, not the whole oil level. Im thinking i am going to run into problems ....am i correct?

 

Probably, how do the plugs look?

 

havent pulled the plugs yet, so im guessing these are signs of the HG going out?

 

Yes, could be. Drain oil and cooling sys. Check for contamination. Also check plugs, whitish color means coolant/water is getting into cylinders. But milky/white oil means contamination with water ur coolant. You may have caught it soon enough since it was just a little white on the stick.