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Falken 285/65/20 tire pressure?

C

Ctimrun

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Just put these on my 2500 Laramie CTD, wondering what others have found to be a good pressure for running around empty? I already lowered my TPMS threshold with a procal, and put the tires at 55 front and 50 rear. The front ones look a little low to me. Snow on the ground where I’m at so it’s tough to do a real contact test.
 
I would run my CCLB at 50/25 for empty snow use. If I were going to be empty and doing any interstate driving I would run 55/35.
 
I have a 2500 Limited CTD with Falken 285/65R20's on stock wheels. I chalk tested and decided on 63F/50R and it seems to work well. I have Ramboxes and carry about 150lbs at all times in the bed.
 
Razzman said:
I have a 2500 Limited CTD with Falken 285/65R20's on stock wheels. I chalk tested and decided on 63F/50R and it seems to work well. I have Ramboxes and carry about 150lbs at all times in the bed.
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You certainly have some room to drop pressure if you want to.

That pressure will support 6,350/5,670.
 
AH64ID said:
You certainly have some room to drop pressure if you want to.

That pressure will support 6,350/5,670.
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No reason to, the tires run flat with even wear and the truck rides almost as good as my 1500 did with the Thuren components installed.
 
Razzman said:
No reason to, the tires run flat with even wear and the truck rides almost as good as my 1500 did with the Thuren components installed.
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That doesn't mean there is no reason to.

Tire life, suceptibility to road hazards, braking, and traction are all improved when running proper pressure vs. overinflated. The chalk test is quite outdated and really just a short term solution if you don't know your weight.
 
AH64ID said:
That doesn't mean there is no reason to.

Tire life, suceptibility to road hazards, braking, and traction are all improved when running proper pressure vs. overinflated. The chalk test is quite outdated and really just a short term solution if you don't know your weight.
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Your preaching to the choir, I spent 15 years in the tire business, every tire from every manufacturer is different; ply material, sidewall structure, rubber compounds all play a part in getting the proper inflation. That's where the chart is just a guideline and always has been as every tire has a different threshold for proper inflation based on the wheel size and vehicle it's installed on. For the record the tires are nowhere near being over inflated. Being able to diagnose the wear pattern gives good indications. The chalk test simply verifies your tires are running flat and not over or under inflated and there's nothing outdated about that,
 
I would say chalk is just a broad guideline and charts are far more accurate, but better to be slightly overinflated than underinflated. Yes tires are built differently to achieve the same goal but that's the benefit of standardized load index.
 
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