whats the deal with warming up your car

hi ive heard 2 sides to this, one side says its absolutely important and the other says its not needed, about a minute to warm up in the morning and your good to go, can i have your 2 cents pls? thanks =) i just wanna know what are the advantages and disadvantages.

ps i also heard some ppl say your sposed to warm up until your tach drops from the initial idle rpm lvl to a lower one and then you know your ready...any comments?

i have a 4th gen, i usually wait till the temp gauge hits one bar, then i go..but dont go past 4k rpms until it reaches a second bar

If you get on it when the engine is cold, there is more of a chance of hurting something.... i always let mine warm up once its starts to get cold in the mornings.....


gunnmen01

I warm mine 30 sec or so and I dont wot until the engine is warm. Basic common sense.

The technical reason....

When your engine is off alot of the oil travels down from the rest of the block down to the oil pan, stuff also cools and shrinks and may not fit like its supposed to. So when you let the car warm up, your letting the oil circulate and get back up into the cams, bearings and everywhere else its supposed to be, your also letting parts warm up so there clearences are what they should be. Its pretty hard on the engin to turn it on and rev it up.