2006-11-03 02:12:56 · 12 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
yes because it makes it warm and cozy
2006-11-03 02:15:34 · answer #1 · answered by khm8891 3 · 0⤊ 2⤋
When you start your car you should only let it run for about 30 seconds before driving. However you should drive moderately-perhaps 45 mph- for several miles if possible before driving fast. It wastes gasoline to idle the engine for a long time. There is also the possibility that someone may get in and drive it away if you're inside your house.In some communities,such as Charlotte,NC it is illegal to leave your car idling without the driver because it encourages car theft. In olden days cars needed more warming up but today the parts in the engine are machined better and the oils are better- and "non-Newtonian"- meaning they behave opposite what would be expected based on Newtons laws. For example, oils used to get very thin when they got hot but today's multiviscosity oils prevent this by thickening as they heat up. In short, better lubrication allows you to drive away sooner.
2006-11-03 12:51:02 · answer #2 · answered by heep81 1 · 1⤊ 0⤋
Definietly.
Engine management systems make fuel more richer to compensate the increased mechanical and combustion needs for a cold engine, espacially in cold ambient temperatures (eg. cold oil is harder to circulate and in a cold combustion chamber and intake tract, much of the mixture condensated on surfaces, staying away from the ignition zone, thus demanding more mixture than usual). When you roll out with a cold engine, the fuel consumption can even be 30% more. In addition, when you cruise in winter, the air is very cold which will also retard the engine from heating up quickly. But when you stand still, this effect is greatly reduced (no drag). Starting it and letting it idle for a few minutes will give very good results and the use of engine heat in the compartment (rather than standstill heat unit like webasto) will help defrosting windows and warming up the cabin (rather than running heated seats which eat a lot of amps and can kill off alternators when used 'full power' for extended periods, and drains batteries when used 'offline').
Regards
2006-11-03 12:30:27 · answer #3 · answered by Blazs (Skoda 120GL) 3 · 0⤊ 1⤋
Just start engine wait around 20 to 30 seconds, and go slowly, that way you save gas and all parts the cars warm up at same time.
If you warm up just engine the rest of the parts are cold and not ready for work with the hot engine.
2006-11-03 12:02:57 · answer #4 · answered by isidoro321 7 · 0⤊ 1⤋
Yes you should. for about 15 seconds in normal temps and about a minute when it's cold, two if it's freezing. This allows the oils in the pans Tranny and engine to warm and flow properly. New cars don't have to warm up as long as older cars. When it is really cold out use your engine block heater. It helps wit keeping the oils and engine and your battery doesn't have to work as hared to start., when cold.
2006-11-03 10:25:54 · answer #5 · answered by ? 7 · 0⤊ 1⤋
Only in the winter and only for about a minute or so. The engine needs time to get the oil stirred up and moving around, however it is not totally necessary. The "I hate a cold car" group need to go out and buy an electric heater. Idling your automobile is the worst kind of pollution possible and it's time the wasteful left started conserving, re-using and recycling! Simple answer: it's not really necessary.
2006-11-03 10:19:32 · answer #6 · answered by Anonymous · 0⤊ 1⤋
It is imperative that you allow the car to develop a safe level of OPERATION! That includes clear windows and clear thinking on your part. Be a weatherperson first by stepping out into the conditions that you will be driving in for first hand assessments then take into account radio/tv reports and forcasts to make an informed decision about how your car should best be prepared for the job ahead. This mentallity will insure a great level of success in all that you do.
2006-11-03 13:26:37 · answer #7 · answered by racer123 5 · 0⤊ 1⤋
yes, but depends on your driving. cold oil is really thick...so dont go "hot rodding" your car while its still cold. if i dont let my car warm up, i dont rev the engine above 2k rpm until its warmed up a little and the oil has a chance to get to its normal operating temperature.
2006-11-03 10:17:30 · answer #8 · answered by FJ40spencer 3 · 0⤊ 1⤋
Im not sure if you should or not but if it is cold I warm mine up about 10 minutes. (I hate a cold car!)
2006-11-03 10:15:56 · answer #9 · answered by BiancaVee 5 · 0⤊ 0⤋
It is pretty much unnecessary with modern autos. The main point would be to get a head start warming up the cabin on a cold day.
2006-11-03 10:26:08 · answer #10 · answered by Anonymous · 1⤊ 2⤋