|
Until the engine is running, or the oil is otherwise being made to flow, I don't see it heating a lot of the oil. If the engine is running, the oil will get warmed up rather quickly from the already pre-heated block as soon as it gets flowing.
You could flow hot coolant through your oil pan, similar to your idea of installing heater elements in the pan. But if/when they leak, your engine is in trouble.
Can you make the oil flow through a non-running engine somehow? Then the engine block is your heat exchanger.
Spinning the whole engine would waste too much power. Doubt you can spin the oil pump with it still attached to whatever drives it in the engine. So...an external pump with it's own pick-up tube, pumping oil up in to one of the rocker covers? Well...now we're just getting complicated...
|