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Author Topic: Warming up the car Back to Topics
JamCoope

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Maryland

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Message Posted: Jan 26, 2011 10:21:52 AM

Most people agree that cars run more economically once they're warmed up... especially in the cold winter months.

Here's a question: has anyone tested whether it is more economical to let your car warm up by idling in the driveway, or by just letting warm up as you drive?
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Hemond
Champion Author Providence

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Message Posted: Apr 24, 2015 9:14:33 AM

I'll be warming up my engine today. What happened to global warming? Its below 30 degrees outside. Thats much too cold to sit in an unwarmed up car.
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dontuknowOH
Champion Author Ohio

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Message Posted: Apr 24, 2015 9:05:20 AM

I believe that it would be nice for OEMs to have the oil pressure indicator idiot light, the one that comes on with most other lights when the ignition switch is turned on during (non start)dash visual only.

Then have that same light(oil pressure light) still stay illuminated in the start-crank engine start key crank over position.... and then go out the very moment the oil pressure is cranked/primed to safe pressure for engine fire-up.

The driver could then always verify that their engine has safe necessary & satisfactory oil P.. delivery as the realization of engine running is noticed. Those frets could be eliminated with the held twist of the key, visual instead of>>>> Has it started yet? A lot of drivers never hear their turn signal chimes or clicks, some never hear their engines fire up in run mode, and often forget the RPM indicator to verify.

Lights they notice often, figure out often, once the manual is read, The Wife still is finding it difficult to turn on our music system, more buttons than knobs I guess! I told Her its getting like a PC Keyboard on the dash area. HA..... I remember pushbutton door handles back in the "50's".

And starter push buttons, pedals, gismos, real sounding horns, not beeps ETC. A Real Horn activated on the steering and a BEEP-Beep-beep push button elsewhere for>>>>. You Please figure that out......... HAGDay!
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OilerFan
Champion Author Tulsa

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Message Posted: Apr 24, 2015 7:32:31 AM

It's just to warm the oil int he crankcase so that it'll flow properly. In cold weather, this is an issue. In the summer, it is not.
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Sun_Man
Rookie Author New Jersey

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Message Posted: Apr 24, 2015 1:30:17 AM

Agree 10 seconds
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HotRod10
Champion Author Wyoming

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Message Posted: Apr 23, 2015 11:18:23 PM

"Who's got time for that????"

Who doesn't? It only takes 20 seconds to walk out, turn the key and walk back in the house.
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b899
Champion Author Connecticut

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Message Posted: Apr 23, 2015 6:46:20 AM

no
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hoopitup2000
Champion Author Virginia

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Message Posted: Apr 23, 2015 6:12:57 AM

Who's got time for that????
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twt
Champion Author Virginia Beach

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Message Posted: Apr 23, 2015 5:28:43 AM

A waste of time and gasoline.
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dontuknowOH
Champion Author Ohio

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Message Posted: Apr 22, 2015 9:29:21 PM

Lately I'm rolling after 10 seconds, on the first start-up. The E... temp. gauge moves off the cold mark and climbs, there is a good trace of heat coming out the vents 1/8 mile away after starting engine(slow pace)for the first traffic light, ETC.145* and climbing. Ready for Scandals!
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hoopitup2000
Champion Author Virginia

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Message Posted: Apr 22, 2015 7:44:50 AM

"funny, this morning saw someone go and start car this morning warming it up... and walking back to house... it's in 50's..."

He/she was likley warming up the car so they could sit comfortably at the McDonalds drive-in window, where he/she would continue idling mindlessly...
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b899
Champion Author Connecticut

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Message Posted: Apr 22, 2015 6:58:05 AM

no
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DAG2015
Rookie Author Toronto

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Message Posted: Apr 20, 2015 11:42:18 AM

No.
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reb4
Champion Author Chicago

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Message Posted: Apr 20, 2015 9:03:12 AM

funny, this morning saw someone go and start car this morning warming it up... and walking back to house... it's in 50's...
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dontuknowOH
Champion Author Ohio

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Message Posted: Apr 19, 2015 9:51:33 AM

30 seconds, then I drive away, most of the time, a bit longer for Winter conditions. Summer about 10 seconds and gone.
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JohnCur
All-Star Author New Jersey

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Message Posted: Apr 19, 2015 9:15:56 AM

no
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b899
Champion Author Connecticut

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Message Posted: Apr 19, 2015 7:29:03 AM

no
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rich7177
Rookie Author Chicago

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Message Posted: Apr 19, 2015 1:33:33 AM

It better to drive the car than leave it idle.You waste gas when you not moving.
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cousin1131
Sophomore Author Indiana

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Message Posted: Apr 18, 2015 4:06:28 AM

who cares
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cousin1131
Sophomore Author Indiana

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Message Posted: Apr 18, 2015 4:05:23 AM

doesn't matter
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cousin1131
Sophomore Author Indiana

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Message Posted: Apr 18, 2015 4:04:55 AM

drive till it is warm my friend
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cousin1131
Sophomore Author Indiana

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Message Posted: Apr 18, 2015 4:04:14 AM

75 degree weather
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cousin1131
Sophomore Author Indiana

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Message Posted: Apr 18, 2015 4:03:38 AM

ok
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cousin1131
Sophomore Author Indiana

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Message Posted: Apr 18, 2015 4:03:11 AM

no need now
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jonjax14
Champion Author Jacksonville

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Message Posted: Apr 18, 2015 12:19:55 AM

ok
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dontuknowOH
Champion Author Ohio

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Message Posted: Apr 17, 2015 8:52:02 AM

I just believe that anytime after a cold morning engine start-up, when the engine has been at rest overnight, 10 or thirty seconds is too short of a time, to move out with motion.

Not that any harm to the engine or drivetrain would develop, but more throttle energy is needed above the idle amount to propel that vehicle. There stand to reason that the enrichment mode is activated at that time of engine trying to warm to normal.

The thought of 3 times more, plus or minus that amount of fuel use varies in extra fuel at that interval(first 4-5 minutes) of engine run time precluding a cold engine temp. start.

Saying 1/8, 1/4, 1/3 throttle opened up then near, ETC. nearly X 3 is as much enrichment amounts seems likely for the first few minutes of use while moving away in motion. That travel even varies with routes/drivers in traffic during engine warming. During idle the engine warming isn't under any engine load, well any loads nearly as much as moving that vehicle. Same for the fuel consumption, idle is way less than the mentioned larger go pedal positions for motion.

My Thoughts only....... AIsi...... Tail-pipe Fumes...... More/less!
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hyeglenn
Champion Author Fresno

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Message Posted: Apr 17, 2015 7:32:49 AM

NO.
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b899
Champion Author Connecticut

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Message Posted: Apr 17, 2015 6:50:54 AM

no
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MikeCapeCoral
Champion Author Cape Coral

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Message Posted: Apr 16, 2015 12:06:38 AM

In Florida?
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b899
Champion Author Connecticut

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Message Posted: Apr 15, 2015 7:01:20 AM

no
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moxxor54
Veteran Author Missouri

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Message Posted: Apr 12, 2015 6:04:56 PM

Not too long
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StArrow68
Champion Author Oakland

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Message Posted: Apr 12, 2015 3:14:56 PM

Ah, the advantage of having the low temp at night around the mid 40's, no warm up required.
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juniperus98
Sophomore Author Alberta

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Message Posted: Apr 12, 2015 1:41:54 PM

No
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b899
Champion Author Connecticut

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Message Posted: Apr 11, 2015 8:31:13 AM

no
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HotRod10
Champion Author Wyoming

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Message Posted: Apr 8, 2015 11:42:21 PM

"Agree. Performance street driving uses far more gas than 5 minutes of idling."

You're right of course, but I wasn't even talking about aggressive driving. I was pointing out that even driving 70mph instead of 60mph also "wastes" gas, as surely as idling does. Someone who criticizes idling as wasteful and polluting, while he admittedly drives above the optimum-mileage speed for his car, is a hypocrite.
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hyeglenn
Champion Author Fresno

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Message Posted: Apr 8, 2015 9:12:03 PM

Only in the winter.
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cwje
Rookie Author Springfield

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Message Posted: Apr 8, 2015 5:55:29 PM

when below zero (F), I warm the car for up to 15 seconds before slowly heading out the driveway
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Hemond
Champion Author Providence

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Message Posted: Apr 8, 2015 11:35:39 AM

:::::: since I have seen your other posts bragging about how fast you drive and how it's not worth the extra time to drive slower to save gas.::::


Agree. Performance street driving uses far more gas than 5 minutes of idling. If one is going to 'throw bricks' at other posters for wasting gas while idling, he should move out of his glass house.

Street racing, boy-racer style driving, cornering on 2 wheels, stop light racing, etc are all huge gas sucking pits of fuel waste. Not to mention knocking the tar out of a car. "Fast and Furious" is fantasy driving for the movie screen. Not for driving around town. Oh yeah,speaking of F&F, the same fate that befell Paul Walker is likely to happen to you boy racers.
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jay93LA
Champion Author New Orleans

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Message Posted: Apr 8, 2015 8:30:46 AM

no
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b899
Champion Author Connecticut

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Message Posted: Apr 8, 2015 8:08:19 AM

no
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hoopitup2000
Champion Author Virginia

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Message Posted: Apr 8, 2015 6:48:36 AM

99% of the time, I start & go.
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GLM4205
Champion Author Toledo

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Message Posted: Apr 8, 2015 6:09:10 AM

No
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redfish67
Champion Author Dallas

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Message Posted: Apr 7, 2015 1:25:13 PM

waste of money
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HotRod10
Champion Author Wyoming

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Message Posted: Apr 7, 2015 9:47:56 AM

"idling for even a few minutes is execeptionally polluting of the air we ALL breathe and contributing to global warming and the changing climate"

Driving faster than the speed where you get the optimum mileage (between 80 and 100 kph for most vehicles) also pollutes the air. gouged, you have no credibility on the issue of waste and pollution, since I have seen your other posts bragging about how fast you drive and how it's not worth the extra time to drive slower to save gas. Where is all this concern about polluting the air while you're flying down the freeway at 120 kph?
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twt
Champion Author Virginia Beach

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Message Posted: Apr 7, 2015 7:06:52 AM

it's a waste of time and fuel.
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Hemond
Champion Author Providence

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Message Posted: Apr 7, 2015 12:05:45 AM

::::HOwever, idling for even a few minutes is execeptionally polluting of the air we ALL breathe and contributing to global warming and the changing climate
:::


THere is no such thing as AGW global warming. There is no proof that mankind, or CO2 , or burning fossil fuels has any correlation to climate. Indeed there is no evidence of climate changing. If anything, its getting colder. I still have snow in my yard. March both came in and went out like a lion. April also came in like a lion. I expect to go skiing on tax day April 15th.

As for idling, that uses a miniscule amount of fuel. a few teaspoonfuls. One good jack rabbit traffic light start uses far more fuel than 5 minutes idling.
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Nar25
Rookie Author Toronto

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Message Posted: Apr 6, 2015 6:59:11 PM

o.k
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gougedQC
Champion Author Montreal

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Message Posted: Apr 6, 2015 6:56:23 PM

well, seems a lot of people still dont get that mechanically there is no reason whatsoever to "warm" the engine of modern vehicles...ie pretty much anything from the year 2000 on.

seems like spending a little money burning gas to warm up the interior doesnt worry them.. doesn't particularly bother me either..your money not mine.

HOwever, idling for even a few minutes is execeptionally polluting of the air we ALL breathe and contributing to global warming and the changing climate

[Edited by: gougedQC at 4/6/2015 6:56:51 PM EST]
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gator2002
Champion Author Calgary

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Message Posted: Apr 6, 2015 10:43:19 AM

I do in the winter months.
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HotRod10
Champion Author Wyoming

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Message Posted: Apr 6, 2015 9:22:52 AM

Very convincing argument, b899. You really earn that 20 points. Thanks for adding so much to the discussion!
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b899
Champion Author Connecticut

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Message Posted: Apr 6, 2015 8:30:01 AM

no
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b899
Champion Author Connecticut

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Message Posted: Apr 5, 2015 7:41:31 AM

no
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