Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

tire pressure question...

Thread Tools
 
Search this Thread
 
Old Jun 28, 2005 | 07:52 AM
  #1  
kemerick's Avatar
kemerick
Thread Starter
|
Mountain Pass
Joined: Sep 2003
Posts: 143
Likes: 0
From: So Cal
tire pressure question...

I have a 2004 PSD with 35" BFG AT's (6" lift from Tag Motorsports) and the sidewall rating says 50 psi max I believe but the door psi rating says 60/70 max.

The tires are at 35 psi right now and am wondering if I should be at 50 or more instead?
 
Reply
Old Jun 28, 2005 | 09:38 AM
  #2  
wlihntr's Avatar
wlihntr
Postmaster
Joined: Jan 2004
Posts: 4,758
Likes: 7
From: colorado
with a bigger tire like that you only really need to put the max psi in them if you are loaded down. what will happen is they will start to wear in the middle of the tire
 
Reply
Old Jun 28, 2005 | 02:13 PM
  #3  
Zenunekim's Avatar
Zenunekim
Freshman User
Joined: Mar 2004
Posts: 28
Likes: 0
Do not put more air in the tire than is listed on the sidewall. The sticker on the door is for the tires that came with the truck from the Ford plant.
 
Reply
Old Jun 28, 2005 | 05:03 PM
  #4  
kemerick's Avatar
kemerick
Thread Starter
|
Mountain Pass
Joined: Sep 2003
Posts: 143
Likes: 0
From: So Cal
Sorry for appearing as though I am an idiot... but I was in a hurry and wanted to make it simple. I know I should not go over the rated sidewall numbers and that the door pillar marking is for the tires that shipped with the truck...

The real question if you all had been true mind readers - would be that I am at 30psi and would like to go higher as I am trying to up my gas mileage. Would it be benifical to do so?

Yes, I watch for abnormal wear patterns such as too high (middle) and too low (outside).
 
Reply
Old Jun 28, 2005 | 10:05 PM
  #5  
Dave Sponaugle's Avatar
Dave Sponaugle
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
Club FTE Silver Member

Air pressure at sidewall pressure rating will give you the best MPG on any tire.

But at some point the MPG increase will be offset by lower tire life.
 
Reply
Old Jun 28, 2005 | 11:03 PM
  #6  
wlihntr's Avatar
wlihntr
Postmaster
Joined: Jan 2004
Posts: 4,758
Likes: 7
From: colorado
to give you a "for instance" i run 285/75-16's on the stock rims to gat even tire wear i run 45 psi front and 40psi rear unloaded. max on the side wall is 65psi. i want the tires to wear evenly and am not worried about what ever the milage difference may be.
 
Reply




All times are GMT -5. The time now is 06:14 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE