
Originally Posted by
mbeige
Bakit ka naiinggit? I bet, those cars don't have thermostats and hence, are not running at the optimal engine temperature. Instead, they're ruining their engine that way. For oil to work, it has to be hot and thin to circulate into every bit of mechanical mating surface in the engine outside the water jacket. If the engine is too cold, the oil will be too thick, and hence the engine will not be protected from advanced wear. Running just below the normal rating is perfectly fine, as long as it does not dip too low from the standard level on a prolonged basis. Likewise, the opposite is true for having a car that runs hotter than normal.