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re: Letting the car warm up before taking off, like 20 secs

Posted on 3/1/19 at 9:50 am to
Posted by 777Tiger
Member since Mar 2011
93541 posts
Posted on 3/1/19 at 9:50 am to
quote:

I read somewhere that 90% of your engine wear occurs in the 1st 30 seconds of start up...


that's true(not sure about the 90%,) even more so in a diesel
Posted by Gaston
Dirty Coast
Member since Aug 2008
41694 posts
Posted on 3/1/19 at 9:50 am to
quote:

Not necessary in newer cars.


I find it’s more important than with older cars. The operating system needs to fire up and initialize before the backup camera is activated, or it gets all fricky.
This post was edited on 3/1/19 at 9:51 am
Posted by tigerfan 33
zachary
Member since Dec 2007
312 posts
Posted on 3/1/19 at 9:54 am to
Was always told that a few seconds are needed for oil to properly spread. Once all the bells and lights on dash panel are done your good to go. Newer car doesn’t matter oil is still a fluid and gravity still works the same.
Posted by Spelt it rong
Louisiana
Member since Oct 2012
11015 posts
Posted on 3/1/19 at 9:55 am to
quote:

wife does it cause that's what her know it all father did with his 1980's vehicles.
are we married to the same person?
Posted by Chad504boy
4 posts
Member since Feb 2005
179848 posts
Posted on 3/1/19 at 9:56 am to
I hope u married her first so mines is null
Posted by Winston Cup
Dallas Cowboys Fan
Member since May 2016
66984 posts
Posted on 3/1/19 at 9:57 am to
quote:

have a 2018 car with turbo

this is how you subtle brag. wait until the end of page 2.

Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43031 posts
Posted on 3/1/19 at 9:57 am to
My step-dad turns off the A/C, turns off the radio, turns off the auto lights, and lifts up the steering wheel
Posted by Mid Iowa Tiger
Undisclosed Secure Location
Member since Feb 2008
25145 posts
Posted on 3/1/19 at 9:58 am to
If it is really cold out yes. Gives the oil a chance to loosen up a bit and get flowing. When its warm out, not so much.


Posted by MountainTiger
The foot of Mt. Belzoni
Member since Dec 2008
14969 posts
Posted on 3/1/19 at 9:58 am to
quote:

not if you rev it up to about 15,000 rpm, then you are saving gas, practically manufacturing gas

That's just never going to get old.
Posted by Spelt it rong
Louisiana
Member since Oct 2012
11015 posts
Posted on 3/1/19 at 9:59 am to
quote:

I hope u married her first so mines is null

Coming up on 6 years and I still get blowies from time to time, so no complaints other than those stated previously
Posted by MorbidTheClown
Baton Rouge
Member since Jan 2015
76768 posts
Posted on 3/1/19 at 9:59 am to
that was the old days
Posted by soccerfüt
Location: A Series of Tubes
Member since May 2013
76124 posts
Posted on 3/1/19 at 10:01 am to
Modern vehicles go through an preprogrammed ignition sequence with RPMs being higher immediately upon starting and then dropping towards the engine’s idle RPM level.

You don’t want to shift the transmission into reverse or drive until the RPMs drop to that idle level (usually 3-5 seconds).

From a safety standpoint, the same 3-5 seconds is prudent to wait before moving the vehicle to make one more eye pass around through the mirrors and see if the sound of ignition startled anyone or anything.
Posted by broadhead
Member since Oct 2014
2601 posts
Posted on 3/1/19 at 10:02 am to
I remote start it from the house so the seats heat up or cool off.
Posted by Chad504boy
4 posts
Member since Feb 2005
179848 posts
Posted on 3/1/19 at 10:02 am to
Definitely different wife but would be glad to swap for a period of time.
Posted by Clames
Member since Oct 2010
19937 posts
Posted on 3/1/19 at 10:02 am to
quote:

I think a lot of things like this are vestiges of old cars where manufacturing standards were much lower than they are today. I've never seen anything about waiting to drive on a modern car.


Except modern vehicles place more demand on the oil system than older ones. Vehicles with active variable camshaft timing almost all use hydraulic pressure tapped from the oil system. Some are known to have high failure rates because the oil pumps can't supply the proper volume of oil, especially when thin 5W-20 oils are spec'd and in high ambient temperatures. My smaller truck, with 5W-30 Mobil 1 oil, starts with nearly 80 PSI oil pressure at idle when cold. That will drop to around 15 - 20 PSI at idle when fully warmed up. That vehicle has a variable volume oil pump though which is increasingly common. My older truck with an standard oil pump will see idle of 35 psi on the 5W-30 M1 and 40 psi on 10W-30 M1 warmed up. IMO I won't use less than a 5W-30 in any modern engine year round and 10W-30 in a V8.
Posted by CaptainsWafer
TD Platinum Member
Member since Feb 2006
59435 posts
Posted on 3/1/19 at 10:02 am to
quote:

My step-dad turns off the A/C, turns off the radio, turns off the auto lights, and lifts up the steering wheel


And my wife (no pics) can’t even turn off a light before leaving a room.
Posted by Spelt it rong
Louisiana
Member since Oct 2012
11015 posts
Posted on 3/1/19 at 10:03 am to
quote:

Definitely different wife but would be glad to swap for a period of time
Posted by AU_251
Your dads room
Member since Feb 2013
12113 posts
Posted on 3/1/19 at 10:05 am to
quote:

my in-laws do this and it drives me insane.


I do it

habit I picked up from my mom. She swore it saves the battery on startup
Posted by soccerfüt
Location: A Series of Tubes
Member since May 2013
76124 posts
Posted on 3/1/19 at 10:08 am to
quote:

And my wife (no pics) can’t even turn off a light before leaving a room.
Odd.

She can turn one off when entering a room just fine....

Posted by eddieray
Lafayette
Member since Mar 2006
19495 posts
Posted on 3/1/19 at 10:08 am to
Women are hard on cars. Does she do the jack rabbit stops and starts too?
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