Travelling home in my 87 Vanagon and the temperature light keeps coming on.
Outside temp about 50 deg F or 10 deg C. After blinking light comes on it
stays on unless I stop. Also the front fan is not on while I'm stopped.

The temperature gauge never seems to go much above the flashing light. When
I stop restart and  idle for awhile the front fan starts sometimes and when
it does I can continue on my way for 10-20 miles before the temp flashes.
Oil, coolant levels are fine and the belts seem good (im not a mechanic).

Question- am I Ok to drive the 40-50 miles home if I just watch the
temperature and keeping it below the 3/4 mark? Or do I need stop every time
the flashing light goes on?