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warming up a car(9 posts)

warming up a carWoof the dog
Dec 13, 2003 9:54 AM
I hear two different things:

warming up the car (idle) is good because if you don't, cold engine will wear (i am not into cars, as you can tell). seems to apply to the types like toyota, honda, jap cars i guess

but then i hear that its bad for the engine actually, and it produces higher emition rates which I believe. so in this instance the recommendation is to just start driving slowly without letting the car run idle for a while.

What should I do
considering i have toyota corolla 92'


re: warming up a car4bykn
Dec 13, 2003 10:06 AM
Modern fuel-injected engines don't need to be warmed up, but I don't think it does any damage. In the old days (carbureted engines) cars would run a bit rough 'til warmed up but now that isn't an issue. Cold engines do produce more emmisions until the catalytic converter reaches operating temperature. Much or most engine wear may be attributed to cold starting, but as long as you don't drive too aggressively you really don't need to warm your engine up. Cold start wear will occur whether at idle or driving.
re: warming up a carJack9
Dec 13, 2003 2:10 PM
You can drive right away but don't drive hard or fast until it is warmed up. Don't accelerate hard leaving stop signs or lights until the water temp. guage is near it's regular setting. On a very cold morning give it a few seconds first, and never sit and rev the engine repeatedly.
I have a friend with an expensive BMW and it has lights on the tach that tell how high he can rev the engine until it is warmed up.
re: warming up a carCARBON110
Dec 13, 2003 3:33 PM
I warm my car up and highly recommend it especially if its the first time you drive it for the day. I find the car and myself perform more comforatably when its warm. Besides who likes sitting in a cold car? It takes about 10 minutes to warm up, why wouldnt you? Im talking temps 30' F and below. Anything below 20 I think your asking for trouble if the car hasnt been driven that day UNLESS you have a garage, then theres no need to warm up your car.....ahhhh nothing beats a garage in winter :D
re: warming up a car4bykn
Dec 13, 2003 4:07 PM
30 and below? I thought we were talking cold! ;->

There are times I can do my whole commute without seeing the temp gauge move. Of course that's 1:00am in January, with real (not wind aided) temps near -15F. Fifteen minute drive home and no heat. When conditions are like this I limit the engine speed to about 1500rpm for 5 minutes. As long as you have oil pressure you should be okay. The only time my truck gets any warm up time is if I start the engine and then proceed to scrape ice or frost off the windows.

Ride in Peace...Mike
Reminds me of my Volkswagen bus on cold Iowa mornings.Spoke Wrench
Dec 16, 2003 10:18 AM
I used to have to leave the transmission in either low or reverse depending on which direction I had to drive first in the morning. There was no way to shift the cold transmission until the car had been driven a couple of hundred feet.
Reminds me of my Volkswagen bus on cold Iowa mornings.4bykn
Dec 16, 2003 2:13 PM
Ah, yes, I remember them well. And talk about heat...non-existant when the temp got below about 20 deg F.
The best thing is to start the car, at...rwbadley
Dec 14, 2003 1:51 AM
winter temperatures especially and increase idle speed immediately to indicated redline. Now, you have to understand this is a recommended max rpm only, and that with a cold engine the best thing to do is at least a 20% increase over redline to achieve the best warm up. With the engine at say, 7500 rpm the fuel injection and oil pump will be working at maximum efficiency. The temperature will rise much quicker, and the heater output to the interior cabin will be more effective. That is of primary importance.

Good luck with the warranty, I'm sure whatever occurs will be covered
LOL ! i second the above.........CARBON110
Dec 14, 2003 5:54 AM
As a matter of fact I would suggest holding the gas peddle against the floor, put the E-brake on, shift to second and let the clutch out. This seems to warm my tires up amazingly well in cold weather. Or try reverse, it has better effects. If you have difficulty downshift to first or just get a steady start at about 20 mph and "yank" the E-brake up. Rear wheel drive preferred but only in snowy conditions