09-11-2019, 02:51 PM | #45 | |
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I am speaking about cars in general. The M3 lives in the garage and doesnt go outside to play in snow or ice anyway. |
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09-11-2019, 07:56 PM | #48 |
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09-12-2019, 07:34 AM | #49 |
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My fast idle slows to normal in 30 seconds...takes another minute or so for the wastegates to close and the exhaust to quiet down.
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09-14-2019, 02:58 AM | #50 | |
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09-20-2019, 06:32 PM | #52 |
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09-22-2019, 10:08 AM | #53 | ||
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Like some in this thread have mentioned, I just start the car and go - only taking the few seconds to put my seatbelt on and hit the M1 button on the steering wheel (which turns on Sport+ ). I also drive moderately until oil gets up to normal operating temp (180 deg F) before I start my "spirited" driving - a practice that is still relevant to all modern engines (that is why the oil warmup lights are there from the factory). It usually takes 5-10 min for oil to get up to normal operating temp, depending on the external temperature and how much traffic I have around me right after I drive off (depends on leaving work vs home).
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09-22-2019, 11:06 AM | #54 |
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My cousin that's a Bugatti tech said all modern cars have to be up to operating temp within 30 seconds of turning on due to SAE standards or something. I don't speak cars so I could have fucked up some terms.
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09-23-2019, 12:03 AM | #55 | |
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I simply give an innocent shoulder shrug and never mention the d-pipe and midpipe swap, plus the BM3 GTS startup rumble. And if the bitching gets too aggressive, I'm certainly not above re-flashing and putting the cold start back in to play.
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09-23-2019, 10:38 AM | #56 |
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10-10-2019, 03:44 AM | #58 |
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When the oil is 60 degrees C the rev limiter opens up to 7600 rpm so then i know that the oil is warm enough to start giving it some throttle. Before that i don't load up the Engine and only drive on lower revs.
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10-10-2019, 04:51 AM | #59 | |
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1."Luck" is an excuse for people that have failed at their mission to do something! (Allan McNish)
2. I’m not an (EXPERT) I’m just here with an opinion. So don’t hate me. (lukej) |
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10-24-2019, 09:14 AM | #61 |
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Thank you fo the replies and some sarcastic comments. As a new owner and wanted to ensure longevity on my vehicle purchase.
As the colder weather moves it I've noticed at startup the revs light start at 5500 and I wait till it goes to 6500 before I leave my garage. I just want make sure the oil even though it's thin and has enough time to lubricate the engine before I head out. For some people this is a lease or a monthly, for me at a dream to have a car like this and now I finally have it & would like to keep it. So as I say agin thank you for the prompt responses and I do enjoy coming on these forums and reading these comments. Enjoy you day everyone. |
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10-24-2019, 09:16 AM | #62 |
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10-24-2019, 09:17 AM | #63 | |
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10-24-2019, 10:41 AM | #64 |
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Not possible due to thermal expansion. It's still safe to operate but you should wait a little bit before going hard on the throttle.
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11-07-2019, 11:45 AM | #65 | |
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Read the same thing. I warm it up for minute in summer and two or three in winter. Hate the way the car shifts when its cold. Transmission lags on gear changes when it is cold out. |
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11-07-2019, 01:25 PM | #66 |
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If you are a TL;DR person, here's the short version of what I want to share: 5-15 seconds of idling is fine before driving at anything above 10 degree ambient temps (approximately). More importantly is driving it gently until the oil hits ~160-180 degrees fahrenheit and your trans and diff have had 5-10 minutes of driving on them to warm them up too.
Let's define warm-up: 1. Time before going into gear/driving - I used to do alot of oil analysis before I realized how completely useless it is at almost everything. Anyway, during that process I learned alot about oil flow properties at different oil temps. We use 0w or 5w oils in our engines; at 40-90 degrees fahrenheit, that shit is eveywhere in your engine within ~5 seconds of start-up. At 15-40 degrees ambient, it can take 10-15 seconds. These are broad strokes. I start the car and belt myself or otherwise have 5-15 seconds before drive off to allow time for the oil pump to push oil to all parts of the engine accordingly. Please remember that if you drove your car yesterday, oil is still coating everything. A cold start doesn't mean an unlubricated start - it simply means the engine is starting on oil from the last drive and you want oil pressure and fresh oil hitting those spots soon. No biggie on a properly functioning engine. 2. DRIVING warm-up: I'll see people spend 2 minutes idling a car and then drive it like it's warmed up. It's not. This is where you go gently if you car about your car. Gentle is subjective, but generally you want to do light to moderate throttle and keep it under 3500 rpms until the OIL hits operating temp. You have an oil temp gauge on your dash; the first hash mark is a good general guide that indicates your ENGINE ain't warmed up till it hits that mark. Further, your diff and trans don't warm up until you are driving for a bit. So idling doesn't do anything for warming up those parts. ... Hope this helps. There's no magic answer. Plenty of engines can beat on mercilessly cold and operate well for a long time. Just be gentle on your car for the first 5-15 minutes and you'll be doing the best you can. Last note: It's routinely 40 degrees out right now in my area. My car is taking 8-12 minutes to hit operating temp in this weather. And that's 8-12 minutes of driving. |
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