I'm past 5 years since purchase at 130,000 miles.
  Had the yellow/green coolant when I bought it and I've added bars leak (normal size) twice in that time. After the bars leak stays leak free a couple years as a daily driver. I don't expect the bars leak to preform miracles but for $3 a shot; problem solved.
  183,000 miles,original engine. Going STRONG and my heaters work GREAT (Wisconsin).

  Chris C 90MV

Mark Brush <mbrush@GMAIL.COM> wrote:
  Hi all -

Anyone have experience with pushing leaking head gaskets to the limit? How
long can one expect to resonably drive with leaking head gaskets? It's a
tiny drip in the summer (about a susan b. anthony in size on the driveway
after two days), and a small puddle in the winter. Can I keep adding
coolant until she goes? Any dangers in doing this other than being stranded
somewhere?

thanks for any insights.

Mark B.
1990 Westy