At What Subzero Temperature Will a Car Fail to Start?

[LeSpencer]

Car fails to start at -30 degrees Celsius. Reasons for failure to start: Insufficient battery charge, obstructed oil flow, untimely replacement of spark plugs, frozen exhaust pipe, carbon buildup in the electronic throttle, lack of antifreeze, and specific considerations for the car's parking location. Solutions for failure to start: Promptly replace the battery or recharge it, clean carbon deposits from the intake tract, throttle, and cylinders. A frozen exhaust pipe or carbon buildup on the valves can also make the engine difficult to start. A frozen exhaust pipe is mainly caused by infrequent use of the car in winter, where water vapor produced by engine combustion freezes at a certain part of the exhaust pipe, and short trips cannot melt this ice. Over time, this affects the car's starting and exhaust. Pouring hot water to melt the ice is a solution.