Why do you need to warm up your car during winter?
This is something that does not really sound so new to you. The engine oil tends to settle at the bottom of the oil pan if the car has not been used for a while. And it will take a while before it can properly circulate again. The cold temperature makes the oil thicker, which is why the car takes longer to start up. The oil is what reduces the rubbing of the metal against each other in the engine and that is why it is important for you to make sure that it is all lubricated.
Metals, just like other solids, expand when they get warmer that is why when designing engines, engineers take this also into consideration and allow some spacing to give room for changes in the size. This means that it is important for your engine to be at the correct operating temperature so that its bits and pieces will be in the right size to avoid friction and reduce the potential wear and tear.
Before driving off, your tyres also need a warm-up, so it is not just your engines. Cold and hard tyres are known to have weaker grips, so this is something you must also consider.
Cold fuel-injected engines run to compensate poor fuel atomization, which means that more fuel is required and is injected into the combustion chamber.
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