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hey, does warming up your engine do anything for your car? like in the morning when its really cold? is it bad if you just get in your car, start it and go!

 
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yes, because the oil isnt warm enough to lubricate your engine good enough

 
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i thnk it is kinda bad to go from a cold start so that's why i have remote start so i can start my engine while still in the house!! lol

but yea you should let it warm up!!

 
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You should notice it run nicer if you let it warm for 10 minutes when it is freezing outside. I sure do in the winter. (unless you have an oil pan heater)

 
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this has been covered b4... use search funtion... let the car run from a cold start AT LEAST 30 secs. b4 u go and drive slowly (keeping under 3k rpms) until its fully warm... its also stated in the manual... it takes about 30secs for the oil to circulate throughout the motor... if u let it run longer, u lose more fuel...

 
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im just bein nice b4 other members scold u about using the "burning" search button....

 
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That is exactly what i do. I usually start the engine while i'm eating breakfast in the morning which is right before i leave. Its set to turn off after 10 minutes so its all good. I still warm up my car everyday, even though it is kept in the garage.

 
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Das true!!!

 
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it depends on the weather, if it's nice out, you should just drive and go, after 20-30 seconds. your car run the dirtiest and waste the most fuel while you are in idle. usually, if you know you are going to sit at a place idle for 2-3 minutes, you'll actually save your self more fuel by restarting later than letting it run.

leaving it idle while it's cold also takes longer to light off your cat and warm up your o2 sensor, instead of driving it. driving your car while it's cold will warm it up and let the circuits go into off mode, which usually release less nox and hydrocarbons

infact, i just did the tests today in my vic, i pulled it up to the school emission detector, at first, my specs were (open loop circuit)

hydrocarbons: 80-120ppm
carbon monoxide: around 3-4%
carbon dioxide: 8-10%
oxygen: 2-3.45%

after raising my car to 2500rpm for about 30-45 seconds, and let it back to idle, the spec became this (close loop circuit)
hydrocarbons: 3-7ppm
carbon monoxide: 0%
carbon dioxide: 12.4-14.8%
oxygen: .2 - .56%

so, my recommendation is, start it up, idle it for about 20-30 seconds, and then go. because like i mentioned before, idle is when your car run the dirtiest

also, while i am on the emssions thing, we also tested an accord with a b20 and no cat, after it went closeloop
hydrocarbons: 350-480ppm
carbon monoxide: 6-8%
carbon dioxide: 4-8%
oxygen: 2-5%



edit: and for extra comparison, we also did the test on a ford model t
hydrocarbons: 900-1250ppm
carbon monoxide: 4-8%
carbon dioxide: 12-14.5%
oxygen: .2-.4%

edit 2:
hydrocarbon = unburned fuel
carbon monoxide = CO, a silent toxic gas
carbon dioxide = CO2, this is what you want the exhaust to become, this and H2O, that's why when you see water comming out of an exhaust, it means the car runs good
oxygen = O2... high oxygen content mean your car is running lean, contain AIR or it could mean a exhaust leak, or false air

 
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Just go fast... Engines only cost like 600$... **** it (:

 
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Just get a Turbo hahaha

 
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but then you need to cool down when you get to your destination