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Old 02-02-2008, 06:14 PM   #1
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Severe cold weather driving

Hey everyone ... just as the title says Severe cold weather driving. As my profile says i live in North Dakota. Last week we just has some very cold weather. Lows at night were around -27 degrees fahrenheit, windchill temps were around -49 degrees. During the day the high temps were about -14 degrees with windchill temps around -36 degrees. I was wondering if it would be a wise decision to put all synthetic oil and fluids through out my entire jeep. Motor for one, i plan on putting Mobil one in the next time i get an oil change.

What i'm wondering about is the Clutch, Transmission NV 3550 5 speed manual, font axle Dana 30, rear axle Dana M35, and Transfer Case. These items were so stiff when it was that cold. When i started my jeep after sitting all day long at work, out in the wind, my clutch was so stiff pushing it in. It didn't loosen up till it ran about 10 minutes warming up in neutral. Once i started to drive, and when i pushed in the clutch to change gears, my Jeep slowed fast because the gear oil in the front and rear ends was so stiff from being cold. It was like pushing a brick on dry pavement. Would you people recommend putting synthetic in everything to keep the oil flowable? And if you do what kind would you recommend? The only thing synthetic i have used in the past is Mobil one in my last car i had.

Now don't think it gets that cold and stays that way all winter long. Its only once in a while it gets that cold. Most of the time its tolerable, Lows around zero to -5 and the day time highs around 10 to 15 degrees. Today was about 20 degrees and was real nice for going out and driving around, Everything worked nice and smooth today.

I would like to hear your thoughts on this.
thanks

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Old 02-02-2008, 09:43 PM   #2
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Honestly at -27F anything ya put in it is gonna get a lil syrupy.......

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Old 02-02-2008, 10:20 PM   #3
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Running all synthetic will really help in the cold weather. Even with this you will still notice a big difference in the cold. We went through the same chill you guys did (albeit not as bad temperature wise) and my Jeep did not like the idea of going from first to second gear. But no where near as bad as it was the year before when I was running dino oils throughout the Jeep.
As far a what to run,

Synthetic Engine Oil.

An oil meeting A1/A5 B1/B5 is better.
An oil meeting A3/B3 is PERFECT for the 4.0

Diffs
Run something that says it meets "J2360" Spec on the back of the bottle. The Walmart brand (made by Warren Dist.) actually meets this spec but you would be surprised how many Name brand high dollar synthetic lubes dont.
As for weight I run a 75-140 but my Jeep spends many miles a year pulling a trailer. If you dont have that load then a 75-90 should work just fine for you.
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Old 02-03-2008, 01:39 AM   #4
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-36????
Dude, stay at home dont drive anywhere!
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Old 02-03-2008, 06:36 AM   #5
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Quote:
Originally Posted by Smeghead View Post
-36????
Dude, stay at home dont drive anywhere!

LOL things don't get closed down when its that cold like it would in other parts of the country. Stores, Buisnesses, and work is still open like a normal day of operation. My Jeep starts just fine when its super cold out. It just feels so stiff driving it when i first start out. It does get loosened up after driving it for a few miles.
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