How much Warm before driving

A

ayussuf

New member
I have toyota's remote start and if you dont see the vehicle, you dont know if its started or not.

With the low temperature the last few days it takes quite a few to warm up my vehicle. The problem is, many time I am sitting there wondering "How much warmth is enough before driving in cold conditions"
 
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the truck will be fine starting it and driving it in cold temperatures without any long warmup time needed. IMHO the reason why most people warm up their vehicles is because they do not want to sit in a cold rig with extra clothing on and try to drive somewhere. its all about personal comfort.

germany actually has a law against idling and warming up your vehicle because of the exhaust emissions.
 
Your 4Runner is ready to drive as soon as you start it, regardless of the temperature, and your 4Runner is getting 0 mpg while you are letting it idle.

Unless you need to defrost the windows, get in, turn it on, and drive away.
 
The best way to warm your vehicle is to start and go. Just keep the rpm as low as possible untill normal operating temp.

Koz
 
I was told on different occasion that their engine lockup because the engine oil is frozen in the tubes or something like that.
 
:wow:
Really?
I think that your not just talking about your 4Runner right?
Best to turn on the car, get in and get going - be gentle until it gets warm...it is prolly a lot better than keeping it parked and running. Not good to idle that long and not good for the environment.
:bluejump:
 
i let mine warm up for about 5 mins when its below freezing. oil is not fully circulating throughout the engine until roughly 20-30 seconds after starting. a large percentage of engine wear occurs during cold starts.

btw- i have an aftermarket remote start. i know its running when i see either the side mirror lights turn on, or the DRL
 
Last edited:
prestone818 said:
i let mine warm up for about 5 mins when its below freezing. oil is not fully circulating throughout the engine until roughly 20-30 seconds after starting. a large percentage of engine wear occurs during cold starts.
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Yea during the cranking, not once its started. Start D, go. NO ISSUE
 
prestone818 said:
i let mine warm up for about 5 mins when its below freezing. oil is not fully circulating throughout the engine until roughly 20-30 seconds after starting. a large percentage of engine wear occurs during cold starts.
Click to expand...

Oil had better be circulating before 20-30 seconds unless it's about 100 below zero!
The only way to prevent some engine wear at start up at any outside temp is to not start it up.There's always that fraction of a second when the upper valve train is not under pressure at start up when it first turns over.

But seriously I was taught since birth to always let it warm up til I saw movement on the temp gauge if it had one or if not wait 3-5 minutes. Then I bought into the German way of thinking on warm up ,owning a few german sports cars and it actually kinda makes sense. Even though it took me a while to buy into it for sure being brainwashed since birth of course.

Their thinking is the engine has oil pressure at start up and if you let the engine warm up first then it's hard on the transmission because you then take off with a warm engine and cold trannsmission. And the temp difference(metal expansion rates)between them makes it hard on both.
Their thought is to start it up and drive slowly until it comes up to temp..

Everyone has their own opinions and no way to know for sure what is correct without extensive testing and would be hard to quantify. I drive mine as soon as it starts up and take it real easy til I see the water temp coming up over half way. Then I floor it!
 
Nothing can prevent cold start scoring in a reciprocatin engine. The most effective means of reducing it is with a pre-lube, as is the case with some large diesel engines. Oil has film strength additives so there is probably enough on your piston rings and cyclider walls to make it not a concerm
 
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