IMO
<<<Snip>>>
How do modern cars regulate their temperature so well?
<<<snip>>>
I think it's more of the difference in radiator and cooling system
efficiency. On older MGs designed for Britians temperate climate the
cooling system is marginal for may areas of the US. Thus the real
opperating temperature is that shown during the cooler days. On real
hot days the engine is actually running warmer than the thermostat is
set for as the radiator can't handle the heat.
With the new cars the radiator and cooling system can handle the heat of
the summer better. Thus there is less fluctation from summer to winter.
Regards,
Blake
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