Continued start and go situations in cold weather can lead to faster wear of many of the internal parts of an engine, Bearings of the crankshaft, piston rings, oil seals, and most likely upper end ( valves, rockers, cam) will all suffer from lack of warm up in cold weather. The colder it gets the more important it is to give the engine time to warm up a bit and to be sure you are using the correct weight oil for your vehicle (refer to the owners manual) generally 5W-30 is recommended for temperatures below 32 deg F.
The lighter 5W-30 oil will allow the oil pressure to build quicker in cold weather and the vital engine components will get the lubrication they need faster. Just because the oil is lighter doesn't mean it doesn't lubricate as well,(It is a very common belief) but the oils lubricating properties are not based on viscosity.
In general after starting the engine you should at least let it warm up at least as long as it takes for it to idle down to a normal idle speed. Usually 500 to 750 rpm or so.
2006-12-08 11:01:07
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answer #1
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answered by alk99 7
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Letting the vehicle idle to heat it up serves no purpose different than to make it heat interior for you. Idling is tricky on your engine, the extra idling you do the faster your automobile will placed on out when you consider which you're wearing the engine yet getting 0 miles out of it. Warming the vehicle up is in straightforward terms a waste of gas, yet once you stress a Jeep I think of you at the instant are not all that taken with gas utilization.
2016-10-14 07:24:01
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answer #2
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answered by ? 4
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Warming your vehicle up does 2 things. It makes it warm before you get in, and it wastes gas. There is no reason other than warm interior to warm up your car, unless your coolant isn't good for cold temps. You can overheat your engine ( after freezing it up from cold air ) if you drive in extreme cold temps with weak coolant. It will help a little to get the coolant temp up. See this in MN winters alot.
2006-12-08 11:38:08
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answer #3
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answered by Papa John 6
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My dad is a mechanic and he has always advised me to warm the car up in the winter. He said that the engine is brittle from the cold and it is hard on your engine when you just get in and drive off. By letting it run, it warms everything up.
2006-12-08 10:51:06
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answer #4
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answered by tnbadbunny 5
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To get it warm---duhhhhhhh. But seriously, as the weather gets colder, the oil in the engine thickens. To warm it up allows the oil to thin out and circulate better and in turn the car will run smoother. Truth. Stalling out comes to mind if your car is not properly warmed up, and having to start it numerous times will put a dag on the starter.
2006-12-08 10:46:05
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answer #5
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answered by beeotch 3
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You have to warm up the oil so it thins out and can run threw your engine. If you don't it could clog your engine over time and it will make your car run like crap. I hate warming up my car too, but it really is best!
2006-12-08 10:49:13
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answer #6
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answered by BOOTS! 6
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that a throwback to the old days when you ran 30 or 40 wt oil, now days with modern oils you can take right off, just don't start racing for the first 5 miles :)
2006-12-08 10:47:49
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answer #7
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answered by Anonymous
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todays modern fuel injected vehicles don`t need to be warmed up. cars with carbuerators need to be warmed up because they have a choke mechinism that adjust air-fuel mixture
2006-12-08 11:03:42
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answer #8
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answered by bdddennis 1
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back when cars were car berated and gas was cheep it wasn't a bad idea. but with to days tecnogley and gas prices. its not such a good idea. and it dont hurt the car to start an go.
2006-12-08 10:52:05
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answer #9
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answered by Anonymous
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So that your engine will get ready to go
2006-12-08 10:48:14
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answer #10
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answered by Princess 2
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