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  #25  
Old 01-17-2015, 11:56 AM
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Re: Handling the JGC on ice

I have a 2012 Limited with Michelin Latitude X-Ice XI2 245/70R17 tires. This is my first all wheel drive vehicle, purchased new in 2012. My family vehicles up to now have been front wheel drive. I have been running four winter tires on all my vehicles for too many years to count. I live in the Toronto suburbs and am a regular driver in snow/ice, with trips to cottage country and ski hills. For whatever it is worth, my second vehicle is typically a BMW 3-series, rear wheel drive, with winters of course.

I have been meaning to post about my experiences when driving on hard pack and ice, which I do not find as very confidence inspiring. When driving on hard pack that has glazed over, I find that traction is terrible. I have no feel feel for the road at all. I wish I could better describe how it feels. I have been wondering if it is these tires, or the fact that I typically run 36 psi, when 33 is recommended. The all seasons that came with the truck are 265. Going down to 245 should actually help.

Perhaps it is something else? How does the all wheel drive work when in snow mode? Is there a constant distribution of drive to each wheel? Which to me would be ideal.

Or does the all wheel drive react to loss of traction and re-distribute as required? Perhaps the distribution of power is constantly moving around, leaving me with a terrible loss of feeling?

It has been disconcerting to have been so sure footed in prior front wheel drive vehicles, only to be white knuckled in some situations in a JGC with winters.

Any help on this would be appreciated.

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  #26  
Old 01-17-2015, 12:01 PM
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Re: Handling the JGC on ice

Personally, I miss the QDII with VariLok axles that I had in my 02.
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Old 01-17-2015, 12:01 PM
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Re: Handling the JGC on ice

Snow mode is a 50/50 split with a more sensitive stability/traction control intervention.

Auto is I think 40/60 f/r and reacts according to current traction.

Skinnier tires is I good idea for snow pack. Better bite.

How old are your tires. X-ice run out quick as they are very soft.


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Old 01-17-2015, 12:08 PM
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Re: Handling the JGC on ice

Quote:
Originally Posted by ramblinman View Post
I just got a 2015 Overland, my first SUV. I live in Northern Virginia and we don't get a lot of snow, but we do get hard packed snow and ice. Last week we had our first snow/ice storm. There wasn't much snow, but it was cold and the snow packed down into a hard surface as slick as ice. A couple of times, the rear tires started to slip sideways into the turn as I turned from a standing stop. I was able to counter steer and straighten out the JGC, but it seemed like a had a bit less stability than I do in my other cars. As far as I could tell, the stability control never activated. I got the 18" wheels with Michelin tires, because we have so many potholes and my car has already had one bent rim and two tires replaced with pothole damage. I didn't want the 20 " wheels.

Do i need to be more careful with the JGC than a standard sedan on ice or hard packed snow? I understand that the oem tires are all season and I'd have better traction with winter tires. But I've always had good luck with all season tires in the past.
I didn't read all the replies, but we live in basically the same place so I wanted to comment.

I have a 2014 Overland with the 20s and the Goodyear Forteras, prior to that I had a 2011 Laredo X with the 18s and the same tires you have.

One issue is that the Michelin Lattitudes on your 18s are not very good tires. They're smooth and quiet, but do not have very good snow traction. I replaced them with a set of Michelin LTX M/S2, and the difference in the snow was really significant. I would recommend you do the same as your tires age.

My Forteras weren't nearly as sure footed as the M/S2 on my 2011, but the Snow mode and the better 4WD system on my 2014 compensates for that somewhat. Unfortunately they don't make those tires in the 20" size.

Now, with that said, the particular snow you're talking about came with VERY cold temps, significantly colder than we are used to here even during a snowstorm. When temps get down in the teens which they were, or even colder, all season tire rubber gets hard and even really good tires like the LTX M/S2 loose almost all of their grip. These are temps when having dedicated winter tires would be a big benefit. Our weather here is typically not that cold, so I've never run winter tires here.

All in all the Jeep is a very good vehicle in the snow. Its big and heavy though, and you need to think about that when turning vs an AWD sedan (for instance I actually prefer my Lexus in say, 2-3 inches of snow). But it will get through pretty much anything.
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