10 quarts of antifreeze/distlled water mixture

for up to -30 use 4.5/5.5 ratio for antifreeze to distilled water
for up to -45 use 5.5/4.5 ratio for antifreeze to distilled water

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)