Reg. 4x4 vs. Trail Rated ... - Jeep Compass Forum
 
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post #1 of 18 Old 08-03-2011, 03:27 AM Thread Starter
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Reg. 4x4 vs. Trail Rated ...

I own a 2011 Jeep Compass Latitude 4x4 (non-trail rated). I don't know whether to kick myself for not going with the "Trail Rated". I do have snow here in New England ... but isn't the regular 4x4 good enough??

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post #2 of 18 Old 08-03-2011, 01:46 PM
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you're fine. it's actually very difficult for me to move a compass that has the freedom drive II. the difference is in the transmission. the FD-II has a low range feature to simulate the same low range function of a transfer case in a truck or larger SUV. the problem is, it sacrifices your gas mileage, even when you're not using it. your 21/26 mpg car goes down to 20/23 with the FD-II. that's why i bought the FD-I.

feel better? lol
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post #3 of 18 Old 08-03-2011, 03:59 PM
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How often do people actually use low range in their normal life unless your going off-roading? I've talked to alotta people that say " I didn't know there was a differance between high and low range."

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post #4 of 18 Old 08-03-2011, 04:05 PM
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exactly. i didn't want to pay extra for something that i'll never use, plus it would have killed my gas mileage.
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post #5 of 18 Old 08-03-2011, 06:08 PM
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I have a related question.. I changed my tie-rod and tow-link 2 times in 1 year. The dealer told me that it is a issue with the Compass and they can do something like 20 000km. This is crazy.. and now I see there is a Trail-Rated version, how the tie-rod and tow-link can resist a off-road condition ? Are they the same ? Do the trail-rated have something to different to prevent that problem ?

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post #6 of 18 Old 08-04-2011, 02:46 AM Thread Starter
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Ok thanks everyone! I assume the FD1 regular 4x4 is still good in the snow and bad weather etc. I am happy to know my MPG is better and yet still with confidence of the Jeep FD1 system.

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post #7 of 18 Old 08-04-2011, 02:53 AM
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Yes, the FDI is great in bad weather.

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post #8 of 18 Old 08-04-2011, 04:09 PM
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And remind me the way the FD1 works is that if the system senses slippage it engages the 4x4, correct? I know we can also lock the 4x4 but it is the system is going to do it automatically, that would save gas.
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post #9 of 18 Old 08-04-2011, 04:29 PM
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Yes, you are right, it does it automaticly, and you can lock it up when going through deep snow or whatever to give you more traction. I usually keep it locked most of the time in winter cuz it makes me feel safer.

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post #10 of 18 Old 08-04-2011, 04:57 PM
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Sounds good, now I just have to get rid of these Firestone Affinity tires before the NY snow starts flying. I want to get a set of Yokohama Geolandar A/T-S.
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post #11 of 18 Old 08-04-2011, 05:24 PM
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It hasn't seen a winter yet? I have the Firestones on mine ran them in the snow, they didn't do bad at all.

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post #12 of 18 Old 08-04-2011, 06:34 PM
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Quote:
Originally Posted by giantsnation View Post
And remind me the way the FD1 works is that if the system senses slippage it engages the 4x4, correct? I know we can also lock the 4x4 but it is the system is going to do it automatically, that would save gas.
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Yes, you are right, it does it automaticly, and you can lock it up when going through deep snow or whatever to give you more traction. I usually keep it locked most of the time in winter cuz it makes me feel safer.
no, that is NOT correct. your jeep is an AWD system. it constantly has power to both the front and rear wheels at all times. but in normal mode, it shifts the power from the front to the rear as it sees fit. the only thing that your "4WD LOCK" button does is it locks your transfer case differential so that the power is split equally front and rear, 50% power to the front, 50% power to the rear.
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post #13 of 18 Old 08-04-2011, 06:34 PM
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We'll see, they'll be good enough for doing donuts
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post #14 of 18 Old 08-04-2011, 06:43 PM
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Quote:
Originally Posted by IRSmart View Post
no, that is NOT correct. your jeep is an AWD system. it constantly has power to both the front and rear wheels at all times. but in normal mode, it shifts the power from the front to the rear as it sees fit. the only thing that your "4WD LOCK" button does is it locks your transfer case differential so that the power is split equally front and rear, 50% power to the front, 50% power to the rear.
We're both right

Jeep - 4x4 Basics - How Jeep 4x4 Systems Work - Freedom-Drive I - 4WD SUVs

During dry conditions it is FWD until it senses slippage and then it provides power to the rear wheels. BUT it is not considered AWD.
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post #15 of 18 Old 08-05-2011, 04:31 AM
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i was told that it puts power to the front wheels only when driving normally, and sends power to the rear only when wheel slip is detected or exra power is needed.

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post #16 of 18 Old 08-05-2011, 03:27 PM
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Exactly. I found out some more details as well. It is considered an AUTO 4x4 system. NOT AWD. The difference is AWD is just that AWD all the time. If you were to put our compass on a lift and press the gas, only the front wheels would move. An AWD on the other hand, would have all the wheels spinning.
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post #17 of 18 Old 08-06-2011, 05:33 PM
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on a lift the 4 wheels spin and the ESP light turn on.. thats why
Is it me or when I slip in the snow, more power is transfered to the rear, something like 75%, not 50/50

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post #18 of 18 Old 08-06-2011, 05:56 PM
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On a lift, the car doesn't know it's on a lift, it just sees it as wheel slip and automaticly puts power to all four wheels.

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