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  #1  
Old January 4th, 2016, 11:22 AM
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Derek Chace
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Winter Oil weights

Hey Guys,

Im going to be spending a lot of time night skiing in the mountains so whats the best weight oil for below 0 and negative temperatures in for my 110 with 3.5NA. Also I normally run Lucas oil additive should I stop doing that during the winter?

Thanks Guys!
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  #2  
Old January 4th, 2016, 01:07 PM
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Something like Mobil Delvac 0W40 would be advisable. Not sure about the additive but it probably would be OK. Depending on where you are headed, with no block heater and if parked outside overnight, any viscosity higher than 0W could make for hard starting. Diesels hate the cold.
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Old January 4th, 2016, 01:30 PM
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For 0 F, 5W40 is fine but 0W40 won't hurt. 5 W means is passes the SAE cranking test at -22 F. 0 W passes the test at -31.

There is no reason to use an oil additive. Wear rates as seen by oil analysis on these engines is low and on par with any modern engine. They are well designed from a wear perspective.

Make sure you have a strong battery. Glow for a long time and it should start fine. I've cold started my NA at -40 and it was no problem. I probably glowed for 90 seconds.

Your bigger concern is fuel gelling. If you buy fuel in a location that does not normally get cold, it may not be formulated for very cold temperatures. Use a good dose of an anti-gel diesel fuel conditioner.
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  #4  
Old January 4th, 2016, 02:01 PM
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You riding Bolton or doing night time skin/snowshoe and headlamp tours?

And you are talking 3.5 gasser V8 correct? I was happy with 0W-40 Mobil 1 in my 3.9 90. Nothing like VT but we had some bad winters here in NJ and it started fine.
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Old January 4th, 2016, 02:04 PM
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Jack Jumping at Bolton. I will be taking the 3.5V8 110 and some time the 109 ambulance but not that much.

------ Follow up post added January 4th, 2016 02:05 PM ------

Yes gas.
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Old January 4th, 2016, 02:25 PM
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Quote:
Originally Posted by greenmountainrover View Post
Yes gas.
Ah. I assumed when you typed "3.5NA", it was the "3" that was a typo. Makes more sense than "NA" being a typo.

Oh, well, then it probably does not matter. The wear rates in those things are horrid.

Probably a 0W40 diesel engine oil is your best bet. Rotella T6 is usually the easiest to find.
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  #7  
Old January 4th, 2016, 03:22 PM
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My bad guys is a 3.5 V8 gas. TO many rovers on the mind.
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Old January 5th, 2016, 10:34 AM
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Thanks for all the help. Thinking new Espar heater and the wold RAD insulation pack will really keep me warm.
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Old January 5th, 2016, 12:09 PM
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Good luck!

Had to look up Jack Jumping - you guys are crazy!

I was a lifty back in my college days at Bolton. I remember it being a fun place with a mellow/local vibe.
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