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| Member |
To each his own. If you ever have a problem that ends up in litigation with a vehicle or tire manufacturer, I wouldn't recommend telling them you purposely over inflated your tires. | |||
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| Victim of Life's Circumstances  |
I under inflate mine. 30psi is typical. I like the softer ride more than saving a penny or two is gas. ________________________ God spelled backwards is dog | |||
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| Member |
Mine run at 45-50 all the time. But then I am driving a Dodge Ram with 10 ply tires  That is factory standard for my truck as it can carry 2995# in the bed. Actually a very comfortable truck to drive. | |||
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| I have not yet begun to procrastinate |
Thanks for mentioning a good portable pump, I've been wanting one. (I only put it off 10 yrs) Any other recommendations out there? -------- After the game, the King and the pawn go into the same box. | |||
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| My other Sig is a Steyr.  |
Usually I'd inflate it to what the decal on the vehicle or owners manual specifies. The pressure rating for the tire is the maximum for the tire itself. The vehicle may need less. Check the pressure when the tire is cold or hasn't moved in a few hours. The tires on mine are rated for higher, but Ford suggests 110 PSI. For optimal tire wear, you can check the tire friction with thermal imaging to get a consistent temperature across the tread pattern, but I've only done that when I was bored. | |||
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Member |
I under inflate on my 4x4 for a softer ride. | |||
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Chip away the stone |
Check out the slideshow and captions here: http://www.fourwheeler.com/how...re-pressure-science/ Basically, they recommend using chalk or a crayon to make a line on the tire, then check the wear on the line. When the line wears away evenly across the width the tread, you've found the ideal PSI for your vehicle/that tire on your vehicle. This technique particularly interests me, because my truck gets somewhat poor rear traction in wet conditions, and I once hydroplaned a truck. Since that incident, driving in the rain always makes me nervous. | |||
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Member |
Overinflate? Never. The goal of tires is traction. Overinflation means you are taking away from handling. Taking away from handling is bad choice and reduces safety. My dd I use the OEM psi. I have other vehicles where the OEM psi is way too high so I run lower psi for better traction. What am I doing? I'm talking to an empty telephone | |||
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| Savor the limelight |
I use the Viair 400P to fill my 14ply tires to 110psi, but the 88P is what I would get for keeping car tires at proper inflation. Viair makes a quality product. As far a over inflation, no. I haven't had a car yet where following the manufacturer's recommendation has lead to uneven tire wear. My truck is a different story. Ford calls for 80psi in the rear tires and I run that when towing our 5th wheel or have the bed loaded, but the rest of the time I run 60 in the rears. Unloaded, the rear axle only has 3,300lbs on it and 60psi is more than enough for the that load. At 80psi, each tire by itself is rated to carry 3,640lbs. | |||
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Member |
36 psi nitrogen _________________________ | |||
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Member |
We use a 78% nitrogen mix at our shop. And generally speaking a slight increase in pressure results in positive wear and handling. _____________________ Be careful what you tolerate. You are teaching people how to treat you. | |||
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Ammoholic |
What do you like for a tire pressure gauge? Just another schmuck in traffic - Billy Joel | |||
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| Member |
Provided you don't exceed the tires max pressure have at it. Enjoy your life. In general (at least on cars that have handling) more is better handling and less is better ride. And of course on trucks you have the issue of tire load. At least on new OEM tires the mfg probably spent some effort to get a good balance. Once those are gone who cares what the door sticker says. I try and respect front/rear balance amounts as I'm guessing they actually did work on that and I don't have the energy to really do any testing. “So in war, the way is to avoid what is strong, and strike at what is weak.” | |||
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Irksome Whirling Dervish |
It makes no difference at a 1 psi difference. At XX psi once you get on the road they will warm up several degrees and on a hot day even more and perhaps over 40 psi. On a cold day it makes some difference keeping in mind the 1 psi for every 10 degrees rule. | |||
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Member |
"These are the new 100 psi tires, ...strictly experimental" Hunter Thompson, Fear and Loathing in Las Vegas. | |||
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Seeker of Clarity |
I go way what most forks would do. My e430 calls for 27psi. I set to 29 is is way under what the I think is really normal for a car with 4650 pound on it. .  | |||
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Giftedly Outspoken |
I go 3psi over recommended. Why? Because of the stupid TPMS system warning light constantly activating if I don't. Sometimes, you gotta roll the hard six | |||
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| Knows too little about too much  |
Yep. RMD TL Davis: “The Second Amendment is special, not because it protects guns, but because its violation signals a government with the intention to oppress its people…” Remember: After the first one, the rest are free. | |||
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Baroque Bloke |
I named the tire pressure gauge that I like in my OP. Serious about crackers | |||
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| Member |
Yes but only 1-2 psi. I run all highway miles and it makes a 2-3 mpg difference. No noteable change in ride. YMMV literally. | |||
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