Originally Posted By dynamite
I used the green Prestone and water...no additives..The crud is brown rust color and seems pasty on inside of radiator cap and hoses ..runs cool but is just plain sh#%ty


OK that's good. As long as it's not watered down. Aluminum radiators and water do not get along

If the crud is rusty that's just crud. Hopefully it's just from not being clean before hand and not a lack of rust inhibitor.

White crud is bad.