Complete Bullshit. Let me guess again that 2.20 gas per gallon also damages my car.
Correct, it will not damage the car NOR the environment.
It does affect the oil.
Controlled and even thermal expansion of the engine metal is the key.
Piston driven airplanes need what might seem excessive warmups, but they will be driven at maximum power at take off. Hopefully you don’t need full acceleration out of the driveway.