Triumph Stag – How to check the thermostat

Triumph Stag – How to check the thermostat

TR Tony checks in on how to test a car thermostat and in this case it’s the one out of the 3.0Litre V8 Stag engine, so it has to be working well!! With several tips on what to look for, it’s a simple process that might give you some insight as to the...