Which of these causes more heat retention by the engine around the exhaust ports, thus transferring more heat to the cooling system?
A)Exhaust backpressure"
B)Lower temperature thermostat"
C)Higher temperature thermostat
D)EGR valve"

Question

Quizplus · Accepted Answer

Exhaust backpressure can cause more heat retention by the engine around the exhaust ports, leading to increased heat transfer to the cooling system.

Which of These Causes More Heat Retention by the Engine