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4WD & AWD systems explained

1376 messages,  Last post on Nov 23, 2009 at 9:11 AM

You are in the SUVs Forum. Your Hosts are steve_ & tidester

What is this discussion about? Chevrolet Suburban, Jeep Grand Cherokee, Subaru Outback, Ford Explorer, Nissan Pathfinder, GMC Envoy, Performance Mods, Tires, Suspension, Transmission, Truck, SUV


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#1326 of 1376
Re: AWD eats tires? [heyboer] by heyboer
Jul 14, 2008 (5:47 am)
Reply

Replying to: heyboer (Jul 09, 2008 9:31 am)

Thanks guys. Almost pulled the trigger on a 2005 Patfinder over the weekend. Geat deal, but no curtain airbags. Still might do it, but now looking at Toyota 4 runners also. Almost impossible to find one in Chicago with side/curtain airbags. Considering Merc Mountainier also because of the airbags. Any input on these vehicals? Reliability of the Merc?
#1327 of 1376
Re: AWD eats tires? [heyboer] by paisan
Jul 16, 2008 (5:54 pm)
Reply

Replying to: heyboer (Jul 14, 2008 5:47 am)

We drive the V8 Explorers at work, late models (last gen and present gen) and they are horribly unreliable. Haven't left us stranded but, little things seem to break on them a lot.
 
-mike
#1328 of 1376
Re: AWD eats tires? [paisan] by heyboer
Jul 17, 2008 (11:58 am)
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Replying to: paisan (Jul 16, 2008 5:54 pm)

Thanks. Actually I ended up with a 2004 4Runner Limited V8. I did some reading and decided the side and curtain air bags were a must. Not many have them. Test drove one at Carmax. Loved it. Bought it for 177w/ brand spanking new tires at a Benz dealer. Tough for a native Detroiter to say, but it is a sweet ride.
#1329 of 1376
Re: AWD eats tires? [heyboer] by paisan
Jul 17, 2008 (8:39 pm)
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Replying to: heyboer (Jul 17, 2008 11:58 am)

Good to hear you didn't buy the explorer/mountaineer.
 
Toyota makes a good vehicle, so I'm sure it will serve you well.
 
-mike
#1330 of 1376
Question 4x4 vs. AWD by aagic
Jul 26, 2008 (7:36 am)
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Hi guys, I'm new here and could use a little help. I do some light off-roading, mostly on the beach which can be a bit tricky if the vehicle is not somewhat capable. I currently drive a 4x4 Jeep Commander and I drove a Cherokee Sport before that. My lease is up soon and I'd like to get another SUV which will allow me to go on the beach but I'd also like to improve my gas mileage. The problem is that virtually all of the 2008s I see with good gas mileage are AWD instead of 4x4 and I'm not confident in their ability to get me out of the sand. I could use some advice. Are the AWDs capable enough? What are the true 4x4s out there for 2008 with decent gas mileage? Right now I'm looking at the Patriot which gets 20/22 MPG with the off road package. Thanks for your help. - AAGIC
#1331 of 1376
Re: Question 4x4 vs. AWD [aagic] by paisan
Jul 26, 2008 (7:16 pm)
Reply

Replying to: aagic (Jul 26, 2008 7:36 am)

Key is to air-down your tires.
 
I'm not a big fan of a FWD-based offroad vehicle like the patriot.
 
I'd look more toward the Nitro/Liberty if you plan on doing offroading with it.
 
-mike
#1332 of 1376
Re: AWD eats tires? [heyboer] by ateixeira
Jul 31, 2008 (7:41 am)
Reply

Replying to: heyboer (Jul 17, 2008 11:58 am)

Congrats, I think you made a great choice for your needs.
#1333 of 1376
Re: Question 4x4 vs. AWD [aagic] by ateixeira
Jul 31, 2008 (7:44 am)
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Replying to: aagic (Jul 26, 2008 7:36 am)

I think the problem is your needs are contrasting.
 
Heavier duty 4x4s with low ranges and locking axles tend to weight more and get poor mileage.
 
Light duty crossovers can be fuel efficient, but that is precisely because they are lighter.
 
Ask yourself how often you truly go off road. Once a year on the sand? I think a crossover with good ground clearance, AWD, and 18psi in the tires will do just fine. Every weekend on sand, gravel, unimproved roads, and some rocks? Then you may want something beefier with skid plates and a low range, but you will sacrifice mileage.
 
Try a Subaru Forester, which has the most ground clearance among car-based crossovers if you tend toward the former. For the latter, maybe consider Grand Vitara with a low range and the new engines coming for 2009, the 4 banger should be fairly efficient for a truck.
#1334 of 1376
4matic AWD in E500 by paisan
Jul 31, 2008 (3:51 pm)
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Anyone out there a MB guru? I'm looking at a few cars next year as my 3rd car and want to learn about the AWD systems out there on various cars. So far in the running for my 3rd car are:
 
A8L
A6 4.2
E500 4-Matic
2010 Legacy
G8 GT (No AWD of course)
 
The Audis and MB would be used, the Leg or G8 would be new. Anyone know the torque split and the traction control systems employed on the A8, A6 and E500?
 
-mike
#1335 of 1376
Re: 4matic AWD in E500 [paisan] by kdshapiro
Aug 01, 2008 (5:31 am)
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Replying to: paisan (Jul 31, 2008 3:51 pm)

If it were me, the 2010 Legacy would be choice. After the dust settles, imo, it would be the most utilitarian and most fun to drive, reliable, with a reasonable cost of ownership.

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