[Shop-talk] winter time; grounded radiator frame?

[Paul Mele]

Anybody know how common plastic or other non-conductive
radiator tanks are in the past 10 years?
BMW started with plastic + alum core over 20 years ago.  No
ground path from rad. Mtg to chassis.

<<With modern vehicles, it's *much* more likely that the
problem is that
the electrical system is poorly grounded, and the engine
coolant is
being used as a ground.  Fix it.>>