Warm Up
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Senior Member
Joined: Jan 2015
Posts: 103
Likes: 16
From: Houston
Warm Up
When I first crank my car up it revs at ~1500 rpms.
After about 60 seconds it drops back to ~1000 rpms and I then put it in gear and drive away.
It does not seem to be dependent on the outside temperature and does this even if the car has only been sitting a couple of hours.
Is this a common practice among most drivers to wait until the rpms drop or am I being overly coddling.
Thanks.
After about 60 seconds it drops back to ~1000 rpms and I then put it in gear and drive away.
It does not seem to be dependent on the outside temperature and does this even if the car has only been sitting a couple of hours.
Is this a common practice among most drivers to wait until the rpms drop or am I being overly coddling.
Thanks.
Veteran Member
Joined: May 2014
Posts: 2,042
Likes: 661
From: Detroit, MI
You're gonna get mixed answers here. I don't wait, others will. Its just transferring from open loop to closed look and doesn't really have anything to do with longevity for the vehicle. It takes more than 60 seconds for your vehicle to properly warm up regardless.
Veteran Member
Joined: May 2015
Posts: 3,931
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From: Northern California
I start the car as soon as I get in. Then I settle, fasten belt, get ready. Usually it's dropped off of fast idle by then. After it does, I drive away gently until coolant temperature is normal.
Pretty much all modern cars do this.
It's to try and get the catalytic converters hot faster, to reduce emissions.
It's to try and get the catalytic converters hot faster, to reduce emissions.
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Senior Member
Joined: May 2016
Posts: 151
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From: UK/Germany
Personally I don't bother waiting and just set off as soon as I'm sat down and buckled up. My assumption was its just for a quicker build up of heat to help with emissions like what Cambo said.
Senior Member
Joined: Jan 2015
Posts: 213
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From: USA
one time i started it as usual and after the RPMs dropped down it actually went back UP a little bit for about 5 seconds then came down again....this actually scared me but i didnt see any check engine lights or any other warning come on. So now I wait just to be extra careful.
Veteran Member
Joined: Sep 2013
Posts: 4,109
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From: Gold Coast, Oz
I agree with CaptainHam. This was raised on the XKR a few weeks ago and I timed mine - it was 23 seconds on a fully cold start. But if the car hasnt been off for long (like you've stopped it to refuel or something) it is much shorter.