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Here’s what the experts say. If you’re over the age of 30, you likely remember your parents and grandparents warming up their cars before driving them during cold weather. You might even ...
Cold weather can make it hard to start your car, or keep it running smoothly. Here are some winter weather safety tips to keep you and your car on the road. Starting your car
“It’s just so dang cold,” one Kansas City auto mechanic said. Learn how to prepare your car for the frigid temperatures in the weather forecast this weekend. Car won’t start in the cold?
Cold starts are more difficult than starting a vehicle that has been run recently (typically between 90 minutes and 2 hours). More effort is needed to turn over a cold engine for multiple reasons: The engine compression is higher as the lack of heat makes ignition more difficult.
The energy used to heat the engine adds a cost. However, the savings in fuel generally outweigh this cost, especially if a timer is used to limit the heating period to about 4 hours before the expected start time. Taking the needed precautions, a kerosene jet-heater can also be used to pre-heat the engine. [2]
A small heater coil is built into the thermotime switch, which effectively gives a timed output to the cold start injector with the timing duration dependent on the temperature of the engine. If the engine is started whilst warm the bimetallic strip remains open due to the higher temperature, meaning the cold start routine is not entered.
How the car warm-up routine began The winter warm-up routine started decades ago when vehicles were more prone to stalling in frigid temperatures, according to Carfax.
Resistive-heat defoggers are usually equipped with an automatic timer to operate for a set time period of 10 to 15 minutes before switching off. This is because most defogging is achieved within that timeframe, after which the vehicle's heater has usually brought the interior of the vehicle to a warm enough temperature that the fog does not recur.