Either you have low coolant, defective cooling system (bad radiator) or a blown head gasket (or all of the above).
Low coolant.
you have a blown head gasket
FRICTION
Too much heat.
If you mean engine coolant is getting into the car, the heater core is leaking coolant causing the coolant level to drop and that causes the engine to over heat.
slavery
when the car starts to over heat
The car will over heat.
If you don't shift it!!!
what causes a Honda CRV to over heat
The friction of running car tires on a road primarily causes kinetic energy to be converted into heat energy. This heat energy is a result of the resistance that occurs between the tires and the road surface, ultimately leading to a loss of energy in the form of heat.
#1 cause Heat, #2 Heat, #3 Heat, #4 Sulfation usually caused by electrolyte loss because of heat.