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E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm}


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Old Tue, Feb-07-2017, 03:42:07 AM   #1
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Question Slow Warm up?

I just read in the E46 thread that you should always do a slow warmup (engine) and I have to ask....I live about two blocks from the freeway entrance and then I have no choice but to hit 65 pretty quickly merging on, is that enough of a warm up?

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Old Tue, Feb-07-2017, 01:54:45 PM   #2
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Default Re: Slow Warm up?

I think slow warm up is very good practice. If you live in a cold climate even more so...
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Old Tue, Feb-07-2017, 06:28:00 PM   #3
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Default Re: Slow Warm up?

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Originally Posted by #1P4PKing View Post
I just read in the E46 thread that you should always do a slow warmup (engine) and I have to ask....I live about two blocks from the freeway entrance and then I have no choice but to hit 65 pretty quickly merging on, is that enough of a warm up?

Two blocks is not warmed up, no.

You should avoid using >50% throttle and keep RPMs low while merging, unless not doing so will make you crash.

Or take the next entrance to the highway.
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Old Tue, Feb-07-2017, 07:09:09 PM   #4
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Default Re: Slow Warm up?

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Originally Posted by Obioban View Post
Two blocks is not warmed up, no.

You should avoid using >50% throttle and keep RPMs low while merging, unless not doing so will make you crash.

Or take the next entrance to the highway.
How can I gauge when it's safe? What's the target temp I guess?
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Old Tue, Feb-07-2017, 07:09:47 PM   #5
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Default Re: Slow Warm up?

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Originally Posted by hogger453 View Post
I think slow warm up is very good practice. If you live in a cold climate even more so...
Do you warm up in idle or just take it easy for the first several miles?
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Old Tue, Feb-07-2017, 07:24:01 PM   #6
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Default Re: Slow Warm up?

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Do you warm up in idle or just take it easy for the first several miles?
Warming it up at idle is also bad for it.

The car has a.... not at all conservative enough variable redline. Follow that as your hard limit (as in, only do that if necessary, otherwise stay ~1500rpm under it), and use it as a "allowable throttle percentage gauge" (so if the variable redline is at 5000 rpm, you can use 5000/8400 = 59% throttle), and you should be reasonably okay.
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Old Tue, Feb-07-2017, 11:08:00 PM   #7
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Default Re: Slow Warm up?

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Originally Posted by #1P4PKing View Post
Do you warm up in idle or just take it easy for the first several miles?
Just take it easy for about for a couple of miles.
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Old Tue, Feb-07-2017, 11:25:31 PM   #8
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Default Re: Slow Warm up?

I stopped warming it up at idle after reading another thread on here. Im in a similar situation as Im reasonably close to the highway. I usually just baby the car and try to keep the RPMS under 3000-3500 until its warmed up and normal redline is reached. When I need to go on the highway right away, I merge on slowly (luckily have a long on ramp) and stay on the right lane around ~60-65mph until Im good.
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Old Tue, Feb-07-2017, 11:33:07 PM   #9
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Default Re: Slow Warm up?

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I stopped warming it up at idle after reading another thread on here. Im in a similar situation as Im reasonably close to the highway. I usually just baby the car and try to keep the RPMS under 3000-3500 until its warmed up and normal redline is reached. When I need to go on the highway right away, I merge on slowly (luckily have a long on ramp) and stay on the right lane around ~60-65mph until Im good.
RPMs don't reach that high on the freeway for me early on because my standard commute settings are "comfort" with the low power setting that causes shifting at around 3000 RPMs if I don't engage with paddles anyway.

In fact this concerned me to the point where I almost made a thread about it because I was reading threads about increased battery discharge and someone, somewhere said your battery doesn't even charge until you hit 6000 RPMs or so which made no sense to me, but I realized that I never hit high unless I go out of my way to drive hard and I don't do that often, but it didn't make sense to me that I would need to floor it to recharge my battery either....
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Old Wed, Feb-08-2017, 12:08:17 AM   #10
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Default Re: Slow Warm up?

somewhere said your battery doesn't even charge until you hit 6000 RPMs

what an idiot.
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Discussing Slow Warm up? in the E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) Forum - {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm} at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)