Quote:
Originally Posted by MightyBobo
You're getting your research from...answerbag.com? Well hold the phone everyone, this debate is OVER! lol
Sensors wont do crap for the expansion and contraction of metals - all it can do is adjust timing and the base idle speed of the motor at certain temperatures (yeah, of course it can do a ton more like alter fuel and whatnot, none of which really matters in this case). It also cant control the fact that all your oil dripped to the bottom of the car, how viscous oil is when its cold and how metals tend to become more brittle in colder temperatures. That's chemistry by the way...not answerbag.com :-p
People are throwing their 2 cents around in here like they are physicists or chemists, and since THEY don't give their car time to warm up, EVERYONE shouldn't! I even use my trucks auto-starter as I'm walking up to it, just to give the valvetrain sufficient time to get nice and oily, along with giving it a small amount of time to get the internal components SOMEWHAT warm.
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Ok, I agree with you.. Running an engine in cold temperatures is bad because all the metal in the engine, and there is a lot of it, is cold.. and oil isn't sufficient everywhere.. But let's use common sense.. Whats worse, having an engine run 10 minutes while its cold (idling it to a warm temperature), OR having it run for about 2 minutes while its cold, while you drive it really nice and slow.. On my current car i start it and let the idle settle (not more than 30 seconds), then set off and shift at ~2,000 RPM.. This is with a slow turbo-charged engine which has NO power and torque at low revs.. But all this is just my opinion and everyone has their own.. and i seriously doubt this will affect the engine in any way, unless you daily start it when its really really cold and redline it right away.. other than that, i think we're all good..