Does an old (1984) diesel use normal, green anti-freeze? I heard that old diesel cars require special anti-freeze?

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Jacob Wissler Jr., Houston, Texas, 1984 300 SD

I am not sure for the older ones, but I know that many highly recommend using the MB anti-freeze on the 124 chasis - '86 or newer.

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1996 (W210) E300D 86K - Traded in for a Lexus
1992 (W124) 300D 2.5 Turbo 202K - Sold
1983 (W123) 300D, 146K - Sold
1970 280S, 263K - Sold - Beginning of addiction

Jacob,

Older all iron engines and copper radiator MB can use almost any antifreeze. Its the newer wonder engines with aluminum heads and/or blocks and aluminun radiators that require special antifreeze.

P E H

Ask for Orange stuff.... not the Green - its got something to do with acid/alkaline ballance effecting the plastic radiator, makin it brittle and cracking.