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Old 05-03-2004, 09:46 AM   #1
pha qed
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Default When the temperature needle moves, is it OK to start driving?

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Old 05-03-2004, 10:01 AM   #2
Slowpoke
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You don't even need to wait that long. I typically let my car warm up between 10 and 30 seconds depending on how cold it is. I drive very gently until the car has warmed up (temp needle in "normal" zone for a few minutes).

The way I see it, I'd rather warm up all components of the car simultaneously (engine, tranny, suspension, etc) by driving it rather than warming up just the engine by idling.
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Old 05-03-2004, 10:19 AM   #3
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You're actually supposed to drive it around gently in order to warm up the car. Letting the car sit there and warm up is not good for today's cars.

Calvin
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Old 05-03-2004, 10:24 AM   #4
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Quote:
Originally posted by cnk
You're actually supposed to drive it around gently in order to warm up the car. Letting the car sit there and warm up is not good for today's cars.

Calvin
Reason being is that if you let the car sit and warm up, you have nice warm water and oil with cold brakes, a cold tranny, cold everything else.

Just start it and go, drive nice and easy until the temp gauge reaches operating temperatures.
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Old 05-03-2004, 10:59 AM   #5
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I start my engine and quickly bump the idle down and let it idle for about 30 seconds and then drive easy untill the tempeture gage stabilizes which takes about 5-8 minutes depending on outside tempeture. Ed
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Old 05-03-2004, 01:02 PM   #6
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Yeah just wait till its right in the middle and go go go
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Old 05-03-2004, 03:08 PM   #7
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You just need to give the car a few seconds to get the oil moving through the engine. Probably about the amount of time spent putting on your seatbelt and making sure you have everything for your trip. Then just drive gently and let 'er warm up for about 10 mins.
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Old 05-03-2004, 04:43 PM   #8
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Quote:
Originally posted by rich22
Yeah just wait till its right in the middle and go go go
That's not entirely true. The stock guage is a coolant temperature guage and it is designed to be "in the middle" over a wide range of operating temperatures. Unless you have an oil temp guage, the best advice is to wait a few minutes before driving the car hard in order to ensure that the oil is up to temperature. Coolant heats up more quickly than oil.
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Old 05-03-2004, 08:23 PM   #9
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Quote:
Originally posted by Stanley
That's not entirely true. The stock guage is a coolant temperature guage and it is designed to be "in the middle" over a wide range of operating temperatures. Unless you have an oil temp guage, the best advice is to wait a few minutes before driving the car hard in order to ensure that the oil is up to temperature. Coolant heats up more quickly than oil.
Very good point. My stock temperature gauge will usually get to its normal position when my oil temperature is still about 30 degrees Celsius below than its normal position.
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Old 05-03-2004, 09:00 PM   #10
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Iyah. for me, i start my engine. wear my seats belt and turn on the radio etc.. Then straight away drive off which is roughly around 10-20 seconds.

I dont like to idle my car for no point.

- Charles
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Old 05-04-2004, 02:41 PM   #11
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Quote:
Originally posted by Stanley
That's not entirely true. The stock guage is a coolant temperature guage and it is designed to be "in the middle" over a wide range of operating temperatures. Unless you have an oil temp guage, the best advice is to wait a few minutes before driving the car hard in order to ensure that the oil is up to temperature. Coolant heats up more quickly than oil.
I'll add to this and say for those without oil temp gauges that it's good 'insurance' to allow the cooling fan to cycle through at least once before going WOT or pushing into the upper RPM band.

And to reiterate others, just start the car, make sure everyone is strapped in and as soon as the dinging stops you're good to go. I pretend I'm breaking the engine in until the cooling fan cycles through twice (under 3000 RPM, never more than about half throttle). This thing is going to last forever
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Old 05-05-2004, 12:19 AM   #12
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Quote:
Originally posted by glepko
I'll add to this and say for those without oil temp gauges that it's good 'insurance' to allow the cooling fan to cycle through at least once before going WOT or pushing into the upper RPM band.

And to reiterate others, just start the car, make sure everyone is strapped in and as soon as the dinging stops you're good to go. I pretend I'm breaking the engine in until the cooling fan cycles through twice (under 3000 RPM, never more than about half throttle). This thing is going to last forever

Is that the ideal warming up? Keeping it under 3000 and never more than 1/2 throttle?
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Old 05-05-2004, 01:20 AM   #13
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Quote:
Originally posted by joebobanaught
Is that the ideal warming up? Keeping it under 3000 and never more than 1/2 throttle?
According to BMW M3, keep it under 4000 RPM. On those BMW M3, they have this indicator. So if the engine is cold, the "Redline" RPM is 4000 but as you gradually heat up the engine, the "Redline" RPM increase to maybe 6000RPM etc....

- Charles
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Old 05-05-2004, 10:05 PM   #14
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In cold weather it takes 8-9 mins for the oil temp gauge to stabilize. In warmer weather, more like 5-6 minutes. I stay off boost and under 3K until then. Oil temp and/or oil pressure gauges are good to have

john
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