What can happen if you don't?
2007-10-18 07:26:12 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
If you use the right viscosity of oil or a full synthetic oil, then you can take off after about a minute or less. The idea is to get the oil flowing before you take off, and that doesn't take too long to do. I have tried a test using both regular and synthetic oil and just pouring them out of their bottles. The synthetic oil pour much more freely and will circulate faster than the non-synthetic oil.
When it got really cold, we would place a light bulb under the hood next to the engine block with a 100W bulb in the trouble light, and then place a army blanket over the engine and closed the hood partially. It was great, when you started the engine, it started right up and the heater worked just as soon as you got in the car or at least within a minute or so.
good luck this winter, and be sure to check your tire pressure, and tread before winter hits.
2007-10-18 07:49:08 · answer #1 · answered by Fordman 7 · 0⤊ 0⤋
In an ideal world the engine would be warmed up always but alas this is not possible. When cold the oil becomes thick. 0W will become least thick and the higher the W number the thicker the oil will be when cold. But ALL motor oils will be undesirably thick when cold.... science has not yet provided us with an oil that can be the same ideal viscosity cold and hot.
So when you start the engine the oil will be too thick to adequatly protect the engine for some time maybe minutes up to half an hour in extreme cold. The point of warming up is to allow the oil to become the correct viscosity to protect fully. Warming up is a comprimise between not pushing the engine too hard so metal to metal contact occurs inside BUT also not leaving the car to idle or low speed so it takes a long time to warm up. A balance has to be struck be it an old car or a new car.
It is often advised that you drive of within one minute of starting the car engine. If left idling it would take an age for the engine to warm up and be pointless. Might as well drive it. Also the temp needle is for the coolant temperature. Coolant warming up to the normal range DOES NOT mean the oil viscosity and temperature has stabilised to its desired operating values.
2007-10-18 07:38:41 · answer #2 · answered by Solid 2 · 0⤊ 0⤋
You are supposed to let all cars warm up before driving in the winter. If you don't you can ruin your engine.
2007-10-18 07:33:56 · answer #3 · answered by cookiemonster 5 · 0⤊ 1⤋
All car
2007-10-18 08:01:58 · answer #4 · answered by romalice f 1 · 0⤊ 0⤋