[Lynn]

JMHO. Take it for what it is worth, but this is pure crap.

"But if you let your car idle to warm up the cabin, the oil will start to slowly drain away from the engine's key components since the engine isn’t moving the car."

What about all the irrigation motors sitting still for hours on end? The "key components" get pressurized oil.

While I agree there is no reason to let a car sit and warm up, there is no real damage being done; especially on a modern vehicle that doesn't have a mechanical choke mechanism.

It is important to keep revs down until the oil is warmed up. Older Bimmers have a little blue area on the temp gauge. The owner's manual instructs not to take it over a certain RPM until the needle leaves the blue area.