I just had a top end overhaul done on the 1600 in my '66 Beetle. At around
60-65 mph, the oil light comes on. Should I switch to a higher viscosity oil, is the pump going, is it a short in the wiring, or is it something else? Thanks in advance for any help/suggestions.Richard Couch Iowa City, IA '66 Type I '83 Rabbit GTI