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I got all brand new tires. The max PSI writtin on the tire is 51. I put them to between 49 and 50. About a month later maby less, they all dropped down exactly 10 psi. Why? Im from south louisiana and its hot and humid...

2007-07-08 15:38:24 · 7 answers · asked by thiscoolguy!! 2 in Cars & Transportation Maintenance & Repairs

i need to mention, the tires i got are not the same as stock. stock is 225/55/16. i put 225/50/16.

2007-07-08 17:23:34 · update #1

7 answers

The new nature of the tires, road use, a hot climate, or the high pressure. There are a lot of reasons. I would check your car's tire pressure with the owner's manual. I have a 1989 Nissan truck that holds only 35 psi in its tires. But, different tires, made for different vehicles have different tire pressures.

Ford tried to make their SUVs more fuel efficient so they increased the tire pressure slightly. That was how they got the nickname Ford Exploders. For an SUV you might want to keep the tire pressure 10% to 15% below max. One good reason for this is that the slightly deflated tires grab the road better. I don't need to worry about that much for my little truck, but you probably have a much larger one.

2007-07-08 15:50:54 · answer #1 · answered by Dan S 7 · 0 0

This is a easy question that I have run into many, many times.

The air that is put in the tire has water in it; How did it get in there? When the tires were installed and inflated, the air compressor at the shop had moisture that was sucked from the air and then pumped in the tire, not much but enough to cause this problem. Sounds stupid I know, but thats what happened.
Areas with Ultra high or even moderate humidity have this problem unless the tires are inflated with Nitrogen, then this problem is eliminated.
It is hard logic and even harder for a lot of people to understand but some of the major corporate tire dealers are using Nitrogen to solve this issue.

2007-07-08 22:49:28 · answer #2 · answered by Mark L 4 · 0 0

Why would you inflate the tires to 51 psi? That's dangerous. 51 psi is the maximum rated pressure for the tire, not the recommended pressure for that tire on your vehicle. Use the tire pressure recommended by the vehicle manufacturer and found on the service plate inside the drivers door frame or inside the glovebox door.

2007-07-09 00:17:30 · answer #3 · answered by Naughtums 7 · 0 1

NEVER fill the tires to the max psi written on the tires, that is the safe upper most limit if you happen to be careless to overfill them. The appropriate PSI is tagged on the information sticker on the driver's door jamb next to the VIN information (probably around 30psi). There is no excuse for all of them to drop to 10psi regardless of area (drops in psi happen in cold climates not hot). Either you have multiple leaks, or someone is screwing with you.

2007-07-08 22:47:09 · answer #4 · answered by Ih8nmu 3 · 0 1

how hot were the tires when you added the air to them. You need measure them with similar heat to the tires. Your tires will show more pressure as they heat up so you should try to measure them at the same time of day with a similar amount of miles driven on them for that day. you are better off to use your own guage first thing in the morning before you drive o nthem at all. you can get a guage incredibly cheaply at any autoparts store or even at Walmart.

I am on line if you have other questions, just IM me.

2007-07-08 22:45:18 · answer #5 · answered by thewisetuner 2 · 0 0

Don't ever put that much air in your tire. The recomonded psi is on the decal in your door jamb. Also, don't put air in a hot tire.

2007-07-09 07:20:31 · answer #6 · answered by Jesse V 3 · 0 0

why do you have so much air in them? just because it say's the max is 51PSI doesn't mean you put in 51 PSI. good luck on the wear pattern in your tires. jus go by what it says on your driver side door jam

2007-07-08 23:37:59 · answer #7 · answered by Junky Man 1 · 0 0

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