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  #25  
Old 12-04-2012, 01:22 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

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Originally Posted by Ahujadaddy View Post
I have the V6, used to get combined 19mpg for the tank, now i'm lucky to get 18.. usually it's 17mpg for me. Haven't tested pure highway road trip yet on the new tires.

I wondered about the tire pressure, and tried doing some research. Still not 100% sure, but from what i saw you only needed to worry about this if you were changing rim size. Couldn't find info on if you are just plus sizing the tire on the same rim. Seems like it should be diff for us since we are going up to a 32" tire.

I started out with 35 psi, then tried 37-38 psi for a month. That was nice, and i thought maybe better with this bigger tire. They have settled back down to 36 and i think it is best to just keep em right there. Play around with it.

I called the tire manufacturer who said that for the 2011 Overland the correct tire pressure for the ltx ms2 size 275/55r20 is 36 psi.
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  #26  
Old 12-04-2012, 03:16 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

that's what Tire Rack said too... figured it was just a standard canned response since 36 PSI is the recommended pressure anyway on the placard of the car with the stock 265/50/20 tires.

Just so happens I am, in fact, liking 36 right now on mine, so yea... just stick with that.
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  #27  
Old 12-06-2012, 09:17 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

What did you do with the spare?
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  #28  
Old 12-07-2012, 09:41 AM
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Re: LTX M/S2 275/55R20 with Quadra Lift

left it alone. Still the factory spare. Was "topped off" with nitrogen several months ago, haven't checked it since. Forgot the PSI, but i'm sure it's there on the placard in the door jamb.
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Old 12-07-2012, 01:51 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

Just picked up my truck - there is absolutely rubbing at full lock in park mode. There seems to be rubbing at full lock in sport mode as well - but only slightly on the felt. The dealership over inflated the tires, so when I get off work I will deflate and check again. I am shocked that all members with this size tire said there was no rubbing at full lock at all ride heights.
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  #30  
Old 12-11-2012, 03:15 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

i did state in this thread there was rubbing in park mode. i hear it every day as a reverse from my driveway and turn the wheel. Sounded faint though, and just the soft wheel well lining.

I should go back and take a look under there to see if any visible signs of that now that its been a couple months.
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  #31  
Old 12-20-2012, 09:39 AM
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Re: LTX M/S2 275/55R20 with Quadra Lift

^^Are you still happy with these and what are your thoughts with hwy driving? Are they super smooth and quiet? Thanks!
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Old 12-23-2012, 06:39 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

I'm happy with mine. I have about 5k miles on them and they're doing we'll.

I inflate them to 37 or 38 psi and also noticed a reading of 1-2 mpg lower but hard to say how much of that as real as I would imagine the speedometer reading slower has an impact on this calculation.

My biggest issue with these tires is that there is no way to re-calibrate the computer so the mileage and whatnot is all measured properly.
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Old 12-25-2012, 01:16 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

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Originally Posted by johhn14 View Post

My biggest issue with these tires is that there is no way to re-calibrate the computer so the mileage and whatnot is all measured properly.
I agree!
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  #34  
Old 12-29-2012, 10:48 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

No way at all? I'm surprised there is no trick/hack/setting to fix the speedo/mpg for the tire size difference.
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Old 01-01-2013, 04:33 AM
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Re: LTX M/S2 275/55R20 with Quadra Lift

Only a tuner will adjust the speedo...and there isn't one available yet. It's right around the corner though...
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Old 01-01-2013, 12:54 PM
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Re: LTX M/S2 275/55R20 with Quadra Lift

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Originally Posted by lysol View Post
No way at all? I'm surprised there is no trick/hack/setting to fix the speedo/mpg for the tire size difference.
Chrysler has been doing this for years, since 2006 at least. They only allow the tech to enter tire factors for the OEM tire sizes (they pick from a menu), all other sizes are excluded. All the WK2 OEMs have the same tire diameter, so there is no need to adjust the factor and the menu item is not provided.

Most tuners allow you free reign.
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