Tire PSI on a 1500
- Thread starter rcallen
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Check the sticker inside the driver's door, it will list the tire size with inflation pressure. Being those standard "P" tires there's probably not much need to reduce the rear tire pressure for ride comfort unlike if the truck is equipped with "LT" tires.
Curmudgeon
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2014 1500 Laramie 4x4, same tire size. Door sticker says 39 psi at all tires. I have Falken Wildpeaks. The ride is a bit nicer (just a little bit) if I drop the pressure to 36 psi.
I run 39 in winter because the tires will drop to 35-36 in extreme cold at startup.
I run 36 in summer because the tire pressure will show 42-43 at first startup, and go even higher once driving around.
I run 39 in winter because the tires will drop to 35-36 in extreme cold at startup.
I run 36 in summer because the tire pressure will show 42-43 at first startup, and go even higher once driving around.
indept
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Do the tire chalk test (search that on youtube).
I did with my truck & found the rear tires like 36 psi with no load in the bed. The fronts are good @39 since it has the engine weight on them
I did with my truck & found the rear tires like 36 psi with no load in the bed. The fronts are good @39 since it has the engine weight on them
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I run 37/38 for my Falkens seems to be sweet spot.
This is excellent advice. What we think is a good pressure isn’t always correct. When I replaced my tires I went with one size larger at 275/65R20 and they are an E load LT tire. The installer set them at 50 psi which was teeth rattling. I dropped them down to 45 psi and was content till I saw a YT video on the chalk test. After experimenting with the chalk I found 41psi was the number I was looking for and the tires are wearing very well three years later with proper inflation and rotations every 10k.
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Load E's have a longer range of psi, you can run them low or high, really high well over 50 psi. But for oem load c stuff that 40 sounds a tad high unless they are thick. If they are load d you are good, check load rating. Now the problem really comes with load, just town driving whatever, you start towing heavy or carry 1500 pounds in the back, follow recommendations in chart.
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My door says 42 I have yokahama x-at e rated tires I run between 42-44 psi
CanuckRam1313
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I run my summer LT295/65/R20 Michelin Defender LTX's at 39psi cold checked, for front and rear.
Comfy ride, and have never had scalloping, feathering, or any kind of uneven wear, and I live most of the time on the highway with my truck.
Comfy ride, and have never had scalloping, feathering, or any kind of uneven wear, and I live most of the time on the highway with my truck.
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ADDED: FTR, not wanna call ne body in here not knowledgeable. But @CanuckRam1313 said, air up when tires completely cold,. Even a couple of mile ride to town will throw off yer psi by a few pounds. Just general info, hee hee.
Racer9
Senior Member
Checking the door sticker is not always accurate if the tires have been changed.
Look at the sidewall of the tire. They have load ratings and tire pressure info. It's usually in fairly small lettering near the rim, like this.
Look at the sidewall of the tire. They have load ratings and tire pressure info. It's usually in fairly small lettering near the rim, like this.
CanuckRam1313
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The way I usually do it is to air up when I'm done for the night and staying home with no more driving. I'll over inflate 5# or so, and then in the morning before the sun starts hitting the tires as that will also skew things a bit, I use my accurate tire pressure gauge and air down to hit my 39psi, cold.
I do this every three to four weeks as it's just my thing and have always done this throughout my driving career.
My 6yo daughter and I now do it together and enjoy our time together. She asks many questions and gets right in there with her little hands all dirty... I'm a proud Dad!
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I just go out in the am, start the beast up, and drive down to garage. Get my air compressor going, get out digital gauge and set to desired PSI.
Sanihut
Junior Member
I came across the chalk test that is working for my Toyo LT tires. Over inflate your tires by 10-15 lbs or so. Go to an empty parking-lot and take a piece of chalk and run it across the full-width of tire. Drive in a straight line for at least two tire rotations. Look for chalk to be evenly removed across the tread. If there is chalk removed from the center of the tire and not the edges, there is too much pressure. Reduce the pressure by 2-3 pounds, drive in a straight line for another two tire rotations. Keep doing it until the chalk has been removed evenly across the tread. My pressure ended up being 50 psi, the tires have been rotated 3 times and there is even wear. And yes with LT tires and at that pressure the ride is a little bit rougher but the tires are on the spendy side and I am getting great life out of the tires.
Hydrasport23
Member
The door sticker is the federally mandated information that is supplied by the manufacturer and is specific to your vehicle, hence the Vin # on the sticker. This info is based on the vehicle specs such as gvwr and suspension specs. Changing tires to another brand does not change the vehicle specs such as weight. The sticker also states "cold " inflation specs so no need to calculate "hot" tire pressures.
Rlaman
Member
Good site to look up truck info. https://www.vindecoderz.com/EN/Dodge/TRUCK
Joseph Godvin
Member
Run 39psi on my Michelins
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