re black stuff
ok when i have had this car for 2 years know and when i got it it was over heating and drove like thad for about 2 monts then i notecied the there was a coolant leak on the left rear back side ... so when i try to see weres coming from i see its from the head just above the spark plug when i removed i find that the head wasn't as SC head and it had a huge crack like 3 inches long
so i changed the head with the one SC ..... and i make sure that the other one was SC .... the cars runs fine strong the i this this stuff my be from that problem in the past since the car has only 69,xxx miles i bough it with 66,xxx i dont drive this one that much