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Correct tire pressure? #4575589
11/15/17 10:33 PM
11/15/17 10:33 PM
Joined: Sep 2011
Posts: 423
IL
lukejo Offline OP
lukejo  Offline OP
Joined: Sep 2011
Posts: 423
IL
2009 Chevy Silverado 2500HD, gas, 17" on Z71 package. Sticker on door jamb is missing, don't see a chart in owners manual specifying for the 17". New Michelin Defenders but same size as the 17" OEM...also same 'E' load rating. Never paid much attention to the old tires, but tire shop (per TPM) set these at high 40's front and mid 60's rear. Where is the best place to get a definitive answer? Dealership?

Re: Correct tire pressure? [Re: lukejo] #4575632
11/15/17 11:56 PM
11/15/17 11:56 PM
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 11,088
Phoenix, AZ
My dad had an 04' Duramax and it called for 55 front 80 rear. But when not towing you could probably put the rears at 65 for a better ride.


2015 Hyundai Sonata 2.4L 88k Motorcraft Synthetic Blend 5w30 & OEM
2000 Toyota Camry 2.2L 231k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Correct tire pressure? [Re: lukejo] #4575644
11/16/17 12:38 AM
11/16/17 12:38 AM
Joined: Feb 2013
Posts: 425
Nevada, USA
gaijinnv Offline
gaijinnv  Offline
Joined: Feb 2013
Posts: 425
Nevada, USA
Originally Posted By: lukejo
2009 Chevy Silverado 2500HD, gas, 17" on Z71 package. Sticker on door jamb is missing, don't see a chart in owners manual specifying for the 17". New Michelin Defenders but same size as the 17" OEM...also same 'E' load rating. Never paid much attention to the old tires, but tire shop (per TPM) set these at high 40's front and mid 60's rear. Where is the best place to get a definitive answer? Dealership?


The 2012 issue of the Tire Guide ( 2012 Tire Guide ) has the following:

2009 Silverado 2500 HD 4x4 Crew Cab Std. Box (LT/LTZ) Z71 Pkg.: LT265/70R17/E 121/118Q 65psi Front / 80psi Rear

or

2009 Silverado 2500 HD 4x2 Crew Cab Std. Box (LT/LTZ) Z71 Pkg.: LT265/70R17/E 121/118Q 65psi Front / 80psi Rear

HTH


USN NAVSECGRU 1970-1974
Re: Correct tire pressure? [Re: lukejo] #4575692
11/16/17 05:20 AM
11/16/17 05:20 AM
Joined: Sep 2011
Posts: 423
IL
lukejo Offline OP
lukejo  Offline OP
Joined: Sep 2011
Posts: 423
IL
Great--thanks!! I'll make adjustments today.
I don't tow during the coldest winter months so will probably keep the year at 65?
That would surely be okay if 65 is correct for front?

Re: Correct tire pressure? [Re: lukejo] #4575701
11/16/17 05:36 AM
11/16/17 05:36 AM
Joined: Mar 2011
Posts: 411
new jersey
hemitruck Offline
hemitruck  Offline
Joined: Mar 2011
Posts: 411
new jersey
I would think that the pressure could go lower in front and rear when riding empty. As to how much lower, I go by how the truck feels and do the chalk test.

Re: Correct tire pressure? [Re: gaijinnv] #4575721
11/16/17 06:21 AM
11/16/17 06:21 AM
Joined: Sep 2015
Posts: 2,473
Malaysia
zeng Online content
zeng  Online Content
Joined: Sep 2015
Posts: 2,473
Malaysia
Originally Posted By: gaijinnv
The 2012 issue of the Tire Guide ( 2012 Tire Guide ) has the following:

2009 Silverado 2500 HD 4x4 Crew Cab Std. Box (LT/LTZ) Z71 Pkg.: LT265/70R17/E 121/118Q 65psi Front / 80psi Rear

or

2009 Silverado 2500 HD 4x2 Crew Cab Std. Box (LT/LTZ) Z71 Pkg.: LT265/70R17/E 121/118Q 65psi Front / 80psi Rear

HTH
Require account to access the site.
Mind sharing a screen shot here ?

Re: Correct tire pressure? [Re: hemitruck] #4575745
11/16/17 07:23 AM
11/16/17 07:23 AM
Joined: Oct 2006
Posts: 1,883
Oshawa, Ont. Canada
irv Offline
irv  Offline
Joined: Oct 2006
Posts: 1,883
Oshawa, Ont. Canada
Originally Posted By: hemitruck
I would think that the pressure could go lower in front and rear when riding empty. As to how much lower, I go by how the truck feels and do the chalk test.


Chalk test, could you please explain? I put my snowies on my truck the other day and have them all at 38 PSI. I was considering 35 but with winter fast approaching I figure they will be close to that anyways soon.


2017 Chevy Impala 3.6 L.
2013 Ram 5.7 L Hemi Bighorn QC 4x4
2008 Chevy Malibu 2.4 L Ecotec
Pennzoil Platinum and/or Pennzoil Ultra Platinum in all 3.
Re: Correct tire pressure? [Re: lukejo] #4575760
11/16/17 07:41 AM
11/16/17 07:41 AM
Joined: Apr 2016
Posts: 1,198
Campbellsville, KY
Alex_V Offline
Alex_V  Offline
Joined: Apr 2016
Posts: 1,198
Campbellsville, KY
If you tow or haul often you'll need to compromise, but most pickups (especially diesel) are going to be heavier in the front than the rear. Couple that with the greater propensity of front tires to wear the shoulder of the tread in turns, and I run my fronts higher than the rears on my C3500. Firestone Transforce A/T's rated for 80 PSI and I run them about 60/55 unless I'm hauling something heavy. If you can find a load/inflation chart for your tires you can take that and the weight/balance of your truck and do the math.


To quote a friend, "Synthetics, man."

'85 GMC C3500, 454, 132K
'82 Mercedes 300CD, OM617 turbo, 173K (totaled 2018, in rehab)
'85 Mercedes 300TD, OM617 turbo, 217K (wife's)
'67 Suburban, 350, 331K
Re: Correct tire pressure? [Re: zeng] #4575870
11/16/17 09:34 AM
11/16/17 09:34 AM
Joined: Feb 2013
Posts: 425
Nevada, USA
gaijinnv Offline
gaijinnv  Offline
Joined: Feb 2013
Posts: 425
Nevada, USA
Originally Posted By: zeng
Originally Posted By: gaijinnv
The 2012 issue of the Tire Guide ( 2012 Tire Guide ) has the following:

2009 Silverado 2500 HD 4x4 Crew Cab Std. Box (LT/LTZ) Z71 Pkg.: LT265/70R17/E 121/118Q 65psi Front / 80psi Rear

or

2009 Silverado 2500 HD 4x2 Crew Cab Std. Box (LT/LTZ) Z71 Pkg.: LT265/70R17/E 121/118Q 65psi Front / 80psi Rear

HTH
Require account to access the site.
Mind sharing a screen shot here ?


The link is to the site where you can purchase the Tire Guide book ... like I did.( Online Store )

No screen shots, sorry.

HTH

Last edited by gaijinnv; 11/16/17 09:35 AM.

USN NAVSECGRU 1970-1974

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