Do you let your car idle and warm up before you drive it on a frigid cold Winter morning, /o/?
My general morning routine is to go outside, start my car, and fire up the heater. I go back in and have some coffee & toast and let the car get nice and toasty inside before I leave for work. I let it idle for about 10 minutes. Keep in mind this is between 4 and 5 AM so it's pretty fucking cold out there in Southwest Ohio.
Recently I read on the Internet that this is really bad and I'm basically slowly killing my car (and the environment). But a lot of people will probably tell you that warming up your car in the frigid cold is vital to your car's overall health.
So which is it? Am I doing bad or good? I drive a 2000 Honda Accord, btw.
Most car manuals will tell you to not do this and instead drive it lightly to warm it up. The engine suffers the most wear by far when it's cold and you're prolonging the amount of time it spends cold significantly by letting it idle.
The quicker your engine gets to operating temperature the quicker everything can expand. If you let your car idle in the cold it will take a long time to reach operating temperature so the tolerances will be tighter increasing where and as long as your engine is below a certain temperature the fuel mixture will remain rich thus polluting the atmosphere at a much higher rate. Turn your car on give it 10-15 seconds for all the fluids to go through and you're good to start driving casually until you reach operating temperature then you can drive normally but letting it idle in freezing temperature to warm up is a very bad idea
DEFA engine heater has my engine at about 35 degrees celcius every morning. If I have to leave suddenly with no chance of letting it warm up I'll just drive off normally. I might let it sit for a minute or two while I take a piss or check my kit before leaving if I have the time and the engine heater hasn't been running, but its not something I am too concerned about as I run 0w40 oil
I don't turn the heater on until the temperature gauge has moved up to normal.
Usually takes about the amount of time it takes to uncover the windshield and drive a mile or two.
If I need the defroster to be running, then I wait longer before leaving but still don't turn it on until warm.
I usually get in, start the engine, get my shit together and go. My car sucks at warming up from just idling. Idling doesn't warm up the transmission or ancillaries.
If I do warm it up by idling I usually put it in D with the e-brake on, it seems to warm up faster with a tough of load on the engine, duh.
In Ohio it's actually illegal to leave a running car unoccupied although I've never known anyone to be ticketed for it and it may require the keys to be in it protecting remote start users.
I really can't see the difference to the engine between idling and light driving. I suspect it's just tree huggers wanting the official position to be not wasting gas/producing exhaust.
Ski boots, snow boots, helmet, harness, hooks and clasps for riding wire, small tools, some rope and some miscellanous stuff. I don't have space to keep it at work, and I also have to unpack and let stuff dry when it has been in use or some snow might have entered the backpack to prevent rot and rust
>start car on cold morning
>start driving within ~60 seconds because I have a strong, independent engine who don't need no warming up
>crash ~65 seconds later because you couldn't see where you were going
Click and Clack have always seemed err on the side of 'no longer than 10mins' or so just to get things limbered up a bit. Otherwise may cause some disservice. I still go about 15 sometimes 20 depend how cold it is
I generally start the car before I put my coat/shoes on. Takes me maybe 1-2 minutes to make sure I have my spectacles, testicles, wallet and keys and get my boots on. Then I get in the car, put the seat heater on, and by the time I'm at the end of the street I put the heater on low until it blows hot. Drive easy but at medium/more than economical revs until the car gets to operating temp.
Never had a car wear prematurely.
Lel this actually works
It is less than a half mile to the highway ramp from my driveway
>below 10F & 3:30AM because work
>Stay in 2nd at 25 (2400RPM)
>Mash pedal when I hit on ramp
>2-3 at rev limiter (58 @ 5500RPM)
>3-4 at rev limiter (Nearly 80)
>Warm air on my face by the time I coast back down to 65
I have a piston engine and a rotary. The piston engine I will let warm up about a minute or two, then I will drive under 3k rpm till both engine and tranny has warmed up.
My rotary, I will let the engine warm up almost completely before driving away. Even after that, I will wait a minimum of 10 minutes before any track or spirited driving for sake of tranny. Of which is noticeably slower when cold.
For piston engines, it is ok to drive while still a bit cold as long as you don't floor it. For rotaries, you need to let it warm up inside first for all the parts to lubricate and run properly.
So what's low revs?
If it's cold i keep my Mazda2 at 2k, still accelerates up to highway speed just takes a while. But it's usually juat early cold mornings with no traffic.
I let it idle for like 2 minutes if anything.
I usually let my car idle for 15 minutes in the winter. Like this morning, when it was 0"F outside. My commute isn't too far so it helps give the battery time to recharge.
>Get in the Jetta
>Barely turns over
>Disengage parking brake
>Shift into reverse
>Lots of resistance
>Try to drive forward
>Can't, now stuck in the alley
>Get out, warm up the Grand Prix
>Borrow roommates truck, drag jetta back into parking space
>Get into GP
>Go to work
Eventually it warmed up 14 degrees and I was able to drive it free (mostly). Gotta break out the hammer and chisel now.
I lightly rev it up while it's sitting.
I wait until half of average operating temp until I drive off.