7 Machine
Home / BMW

engine start

kpneverdies2010-08-29 17:53:01 +0000 #1
do you guys let the engine warm up or just drive off?

i thought you were supposed to warm up the engine, but i some a thread that it's not good for the car because you need to warm up everything, not only the engine. (someone said its even in the owner's manual).

when i start the engine, there's loud sound and that sound goes off after 30 sec or so. and then, if you wait a little longer, the revs up a little and then goes down to somewhere btw 500-700rpm (it depends on the day).

you guys prefer to just drive it off or warm up the engine?
WillC3102010-08-29 18:02:17 +0000 #2
Manual says to just get in and drive. You only really need to warm up the car if you live in a place that snows and it's buried. Seeing as how you are in Hawaii, I don't think you have to worry about that.
serge2010-08-29 18:08:04 +0000 #3
In Germany, you must drive off immediately. Otherwise, you'll get a ticket. Letting the engine warm up has negative effects for the environment.
Roby84m2010-08-29 18:08:01 +0000 #4
Is it healthy to rev it up to 5k or more when the engine is cold?
SenorFunkyPants2010-08-29 19:14:48 +0000 #5
Quote:

Originally Posted by Roby84m

Is it healthy to rev it up to 5k or more when the engine is cold?

No....the highest rate of engine wear occurs when the engine is cold and is compounded by using high revs.

I let my engine idle for about 20 secs until it quietens down then drive sedately until the engine oil starts to warm up...no full throttle until above 75C and no maximum revs until the oil is at normal running temp.
besiktas2010-08-29 18:37:43 +0000 #6
when you start it will take about 5-15 seconds to have steady idle, i wait for that then drive off. manual tells you to drive immadiately to reduce fuel consumption.
Krozi2010-08-29 19:15:31 +0000 #7
Quote:

Originally Posted by Roby84m

Is it healthy to rev it up to 5k or more when the engine is cold?

For the love of God tell me this was a joke?
ersin2010-08-29 21:07:09 +0000 #8
You should drive off immediately, but wait for things to warm up before driving it hard. Sitting just wastes gas and pollutes more. Since I live on the top of a hill, my start off is always down hill and I rarely give it much throttle until I at least see the oil temperature come off the peg. It doesn't take long -- just a couple or three miles.

Cheers.
Krozi2010-08-29 19:57:16 +0000 #9
I only drive hard until that oil temp needle is pointed down 90°

My car does not see much past 4k before it's warmed up 100%
1sikbmr2010-08-29 22:07:10 +0000 #10
I let the car quiet down after the start then I drive off... I shift at 2k only until the red line drops to normal... and I never push the car when it's cold.
FStop72010-08-29 19:47:20 +0000 #11
I start driving immediately and keep it under 5,000 until the needle is halfway to the 210 mark. Once it gets to the 210 mark game on.
Chill722010-08-29 20:15:28 +0000 #12
Quote:

Originally Posted by serge

In Germany, you must drive off immediately. Otherwise, you'll get a ticket. Letting the engine warm up has negative effects for the environment.

Not exactly true since there are no cops to be found anywhere, especially in the winter. I go out, start my car and when I get back in about 5 min it's nice and toasty

I'm talking about my DD not M.

Reply

Name:
Content:


Other posts in this category