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#1
02-03-2019, 08:41 PM
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-35 cold start in Toronto - 1985 Mercedes 300D original engine
Hey everyone,
I thought I would share this. Coldest day of the year -35 to -38 during the night, not plugged in or started for 16+ hours. I was shocked it started. -New AGM battery. -filters, fluids changed often. -Original engine, not rebuilt. -valves adjusted every year, well in spec. -5W40 liqui Molly oil, I use 15W40 in the summer/hot weather. -last compression test showed 350-400 on all 5 cylinders. -500,000km approx. -well maintained at dealer and specialists. https://www.youtube.com/watch?v=n1B4Bn305L8
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1976 Mercedes 240D (Sold) 1985 Mercedes 300D Turbo Diesel: 500,000KM 1986 Mercedes 300E (Sold) 1988 Mercedes 300E (Sold) 2002 Mercedes C240 (Sold) 2008 Mercedes C350 4matic A great site for purchasing industrial rubber products! Industrial Rubber 
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#2
02-03-2019, 09:09 PM
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Wow great that is amazing.
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92 e300d2.5t 01 e320 05 cdi 85 chev c10
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#4
02-03-2019, 10:35 PM
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R.I.P. Starter Motor.
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Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!)
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#6
02-03-2019, 11:58 PM
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No need for diesel anti-gel additive? If not at temperatures of -35 to -38 overnight, then when?!
Which 5W-40 Liqui Molly oil do you use? I'm completely unfamiliar with their oils so this isn't a question to start a feud, just trying to learn.
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#7
02-04-2019, 12:16 AM
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A couple glow cycles more might have cut down on the time, but -30 is really cold. I would love to test my 87 300D in cold weather, but it just doesn't get cold where I live.
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RenaissanceMan Labs: where the future is being made today. Garage: 2017 Chevy Colorado Diesel (nanny state emissions) 2005 Volvo S40 T5 AWD, 77k 1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 156k - 28.7 mpg 1996 Tracker 4x4, 2 door, 16v, 3 sp auto. 113k - 28.6 mpg WARNING: this post may contain dangerous free thinking.
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#8
02-04-2019, 12:32 AM
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Starting out from -35F I doubt it would get hot enough in 1-2 mins or less of cranking. I used to do a solid 45-60 seconds often in my 617 when it was under 5F out and the starter never died....even after many years of it.
The bluetec's are boring in comparison for cold starts. One 10ish second glow....turn key, cranks about twice and its running...even well below 0F.
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#9
02-04-2019, 08:40 AM
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For me the 5w40 oil makes a huge difference. The motor just turned through a couple revolutions to start at -2 F. I just hit the starter right after the glow plug relay opened.
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CC: NSA All things are burning, know this and be released. 82 Benz 240 D, Kuan Yin 12 Ford Escape 4wd You're four times It's hard to more likely to concentrate on have an accident two things when you're on at the same time. a cell phone. www.kiva.org It's not like there's anything wrong with feeling good, is there?
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#10
02-04-2019, 11:22 AM
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Impressive. Still better to use 2-3 glow cycles...and not trust the idiot light.
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife
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#11
02-04-2019, 12:48 PM
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If it's going to sit in cold weather for days, then I'll add an additive. There are lots in modern diesel anyway. I followed the owners manual for the W123, where it's stated to actually add 10-15% gasoline to the diesel tank. You can never surpass 30% though.
Quote:
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1976 Mercedes 240D (Sold) 1985 Mercedes 300D Turbo Diesel: 500,000KM 1986 Mercedes 300E (Sold) 1988 Mercedes 300E (Sold) 2002 Mercedes C240 (Sold) 2008 Mercedes C350 4matic A great site for purchasing industrial rubber products! Industrial Rubber
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#12
02-04-2019, 01:09 PM
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I made my son drain the tank on my 84SD over .17 gal of gas in an almost empty tank. He shut the pump off and never started the car so I figured 5 gal of diesel would be enough to handle what was left.
I don't car what the FSM says. I'll use kero but never gas.
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84 300SD 85 380SE 83 528e 95 318ic
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#13
02-04-2019, 01:20 PM
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I will keep this in mind, and use Kero next time in that case. I don't want to risk anything bad with this car.
Quote:
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1976 Mercedes 240D (Sold) 1985 Mercedes 300D Turbo Diesel: 500,000KM 1986 Mercedes 300E (Sold) 1988 Mercedes 300E (Sold) 2002 Mercedes C240 (Sold) 2008 Mercedes C350 4matic A great site for purchasing industrial rubber products! Industrial Rubber
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#14
02-04-2019, 01:25 PM
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Here's a pic of her all cleaned up
 
__________________
1976 Mercedes 240D (Sold) 1985 Mercedes 300D Turbo Diesel: 500,000KM 1986 Mercedes 300E (Sold) 1988 Mercedes 300E (Sold) 2002 Mercedes C240 (Sold) 2008 Mercedes C350 4matic A great site for purchasing industrial rubber products! Industrial Rubber
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#15
02-04-2019, 01:49 PM
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Quote:
__________________
RenaissanceMan Labs: where the future is being made today. Garage: 2017 Chevy Colorado Diesel (nanny state emissions) 2005 Volvo S40 T5 AWD, 77k 1987 Mercedes-Benz 300D turbodiesel, 4 sp auto, 156k - 28.7 mpg 1996 Tracker 4x4, 2 door, 16v, 3 sp auto. 113k - 28.6 mpg WARNING: this post may contain dangerous free thinking.
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