General

[quote=ZetraDedd]yeah its best to warm your car up

why is this such a pressing matter to you lol[/quote]
Just to see what the truth is. Seeing how there're opposing opinions here as well,~3mins warming up won't hurt I guess.

My car sometimes gets Parkinson's in certain conditions...it shakes a ton after starting up until I gas it a lot, or until I get past about 30 mph. I think it has to do with the misfire it has.
And yeah sometimes my heater heats up real fast even after just sitting there, but sometimes not. I can't tell what the conditions need to be cause it's pretty random.

@igetaroundxD: "Keep your gas tank above half-full at all times. Condensation can build up in a near-empty gas tank in extremely cold temperatures, which can cause fuel line freeze-up and no-start conditions."
http://www.vehicletest.state.ma.us/motorist_winter_tips.pdf
[url=http://www.erh.noaa.gov/er/car/WCM/Maine-Ly%20Weather/Winter0304/SafeWinterTravel.htm]End of the 3rd paragraph[/url]

I guess that's why

My dad tells me to wait until the RPM is down to 1000 before going in cold weather or warm.

Only need to rev the car for about 1 min max before driving
Anything more is waste

5 minutes at the least

Unless you're driving a really old diesel, or something that uses SCCI combustion, warming the car before driving is unnecessary
That said you shouldn't be reving it too hard unitl it does warm up.

[quote=UAPaladin]@igetaroundxD: If I'm wrong then my bad, but the reason why everybody where I live says to keep more than half a tank is because with less, there's a higher risk of the gas freezing. I've noticed that my car does have a harder time starting up when it's extremely cold and I have less than half a tank as compared to more than half a tank. Maybe that was just coincidence and this is just another myth, but, like I said, having more than half a tank of gas in cold weather is what everybody recommends where I live.[/quote]

That's alright. But to note, gasoline has an extremely low freezing point (negative 180- negative 240 Fahrenheit). You can prepare for the world's ending I suppose. If what you're saying has merit, I'd have to research that, maybe fuel amount has a correlation with your car's ability to achieve the right fuel to air ratio.

@igetaroundxD: If I'm wrong then my bad, but the reason why everybody where I live says to keep more than half a tank is because with less, there's a higher risk of the gas freezing. I've noticed that my car does have a harder time starting up when it's extremely cold and I have less than half a tank as compared to more than half a tank. Maybe that was just coincidence and this is just another myth, but, like I said, having more than half a tank of gas in cold weather is what everybody recommends where I live.

Of course I warm up the car. Don't wanna be in a car freezing my ass off when it was -30 during the night.

It's best if you do but nothing's gonna happen if you don't. People are misconstrued as modern cars are NOT that fragile. The way most modern cars warm up is by driving it for a few mins, just don't rev it until the engine has reached working temperature.

Yes U have to warm up Ur car e.g putting a heater or a fireplace next to it.. Or u can just light up a match and put in the engine so it can heat up faster

[quote=UAPaladin]I have a 2009 model and it functions just fine after being left outside overnight in -10 degree F weather without being warmed up. You just need to make sure to have at least half a tank of gas in your car at all times when it's that cold, otherwise you're risking your car not being able to start.[/quote]
Haha that has nothing to do with it. A car's ignition electrical system produces internal combustion in order to start your vehicle, your spark plugs and plug wires are responsible for delivering that spark at a precise moment during the rounds of your cylinders. This is the reason why there are several key positions when you key your car and to start it, is the last key position. Your ignition system is programmed to produce a fuel-to-air ratio that is hit with that spark that starts your car. A tenth of your fuel tank vs. a full tank will provide an unnoticeable difference, your ignition system will provide the same ratio nonetheless.
***BUT! A higher fuel grade will increase your cars combustion rate and will make it easier to start (Higher octane count in higher quality fuel). And it will also make your car more responsive due to this, and that's why auto-racers of all forms use higher grade fuel <3

lower temperatures = harder to spark = cylinders won't fire up= your car will start skipping until it internally combusts
When vehicles can't start due to the weather its likely that the vehicle needs a tune-up (needs the spark plugs+plug wires replaced). That is the usual case
@OP

Warming up your vehicle is old folklore that is why some states are adopting laws that make it a traffic violation to idle your car after a certain length (People aren't aware of our modern auto technological advances and still use old practices such as warming up a vehicle that collectively and needlessly harms our earth on a massive scale, I'd advise you to look it up. It's pretty pathetic. Ignorance is always pathetic, but its the lack of communication over the years that's make it worse ). There's two old reasonings behind warming up your car.

1. when engines were made of cast iron (no longer the case for like three decades now), having that material reach extreme temperatures in a short amount of time. From outside temperatures to hundreds of degrees (your engine is containing an onslaught of explosions in your cylinders) in a matter of a few seconds would over an extended period of time eventually crack the cast iron in which would start oil leaks and oil leaks invite a whole host of problems. So people wanted to ease into those temperatures to improve the longevity of their vehicles. Post-late 80s vehicles stopped using cast iron for their engines, but... people still use this practice... If you're wondering we now use alloys (specific blends of metals that gain a desirable characteristic) and aluminum.
2. Before the car ignition electrical system, we used carburetors(also no longer the case for like three decades now) to provide the proper mixture of fuel to air for the spark that's needed to start the car. The problem back in the Flintstone era, was that, these carburetors would have problems in cold conditions. We no longer use carburetors and haven't used them since before I was born (93') thus we don't need to worry about that.

CAN WE STOP WARMING OUR CARS NOW SHEESH

[quote=SirKibbleX2]Suspended for the "d" word on title, also for "f" word in the article itself, not to mention the "a" word in the comments.
C'mon dude there's apparently children here.[/quote]

Trigger warning!

I have a 2009 model and it functions just fine after being left outside overnight in -10 degree F weather without being warmed up. You just need to make sure to have at least half a tank of gas in your car at all times when it's that cold, otherwise you're risking your car not being able to start.

If it's a newer model and you parked it in the garage, I would only wait a minute before I drive off. If it's a beat up 1995 Toyota Corolla parked outside in the cold, i'd let it warm up real good before I drive off. If you get cold start and immediately drive off, the car just feels really weird to me.

YES YOU NEED TO WARM UP YOUR CAR. The reason to this is that the oils/fluids in your car have been sitting all night and have probably begun to solidify. Give your car some lime to let this stuff loosen up or else youll be pretty much running the engine dry.
Sources: Dad has been a mechanic for over 30 years + http://jalopnik.com/yes-warm-your-damn-car-up-if-its-cold-1678251730

misconception. you're just wasting gas. the only reason i warm up my car is for cold weather

My car is a 2011 model and I need to warm it up for like 2-3 minutes.

yeah its best to warm your car up

why is this such a pressing matter to you lol