[Werner]

I have taken many measurements to know the engine.

Without a hose thermostat, the engine water needs more than 10 miles of speedy driving until it reaches 70 ° C into the cylinder head.

With a hose thermostat, this temperature is already reached after 2 ml.

The oil temperature has reached in this time only 55 ° C after 10 ml. Only at 15 miles with more than 45 ml / h, about 70 ° were reached.

That's all very little; to evaporate the combustion condensates more than 95 ° C oil temperature are necessary.

Physics: Each time you burn 1 kg of fuel, you get 1 liter of water!

What does not evaporate through the exhaust condenses in the engine block.