Can i run 75 psi for a while

[twindman]

I am in the mountains and my tires are supposed to be 80 psi. I will only be driving 100-150 miles per day for a total of around 500 miles. Anyway, because of cool temp and high elevation the tires are 3-5 psi low. Also, after about 10 miles the psi is up to over 80 each day.
I don't really want to add air for such a short distance and then have to let it out again. Suggestions??!?!?!?!

[dieselguy]

Some tire pressure gauges aren't even accurate to 3-5 PSI. I'd not worry about it ... put your gear selector in D. Several times, we've traveled from low to high elevations and back down without issue. I can't say the same for a couple of bags of potato chips however.

[mlh]

Your pressure will go up as the tires warm up but this is to be expected and they are designed for that. In order words forget about it and run pressure like you have been doing before this.
Lynwood

[AZ Traveler]

Tom,

You are OK with 75 PSI. Your tires should be checked at 60-70 deg. You don't let air out when they get hot and go over 80 PSI.

[twindman]

Thanks all. I was hoping I would be ok. Hooking up the compressor to the monty battery and taking off my TST sensor, filling it up, then re-attaching the sensors is a pain for just 3-4 lbs.

[BB_TX]

We have often traveled from 500’ elevation and 100 plus temps into 8,500’ elevation and daily high temps of 60-70 and never worried about it.

[mhs4771]

Changes in elevation is not much for tires, but be careful if you have a Sleep Number mattress or another air type of mattress. They only contain a pound or so of air to major changes in elevation can have serious effects.

[mlh]

Originally Posted by mhs4771

Changes in elevation is not much for tires, but be careful if you have a Sleep Number mattress or another air type of mattress. They only contain a pound or so of air to major changes in elevation can have serious effects.

There is another place it has an affect, mustard. We are at 1400 feet and went to Wyoming and 8300 feet. My brother turned the mustard bottle upside down and opened it up. It blowed mustard all over him.
Lynwood

[daveinaz]

Originally Posted by mlh

There is another place it has an affect, mustard. We are at 1400 feet and went to Wyoming and 8300 feet. My brother turned the mustard bottle upside down and opened it up. It blowed mustard all over him.
Lynwood

Thanks for that. I needed a laugh

[Byron B]

Originally Posted by mlh

There is another place it has an affect, mustard. We are at 1400 feet and went to Wyoming and 8300 feet. My brother turned the mustard bottle upside down and opened it up. It blowed mustard all over him.
Lynwood

As I am a bit slow on the learning curve, the same has happened to me. Include mayo and carbonated drinks to the list as well......

[mlh]

Originally Posted by Byron B

As I am a bit slow on the learning curve, the same has happened to me. Include mayo and carbonated drinks to the list as well......

Sure is funny when it happened to your brother.
Lynwood

[Bill M]

Totally agree with JGL. Even if gages are off by up to 5 psi, that could mean you are at 70 psi. Run at 80 psi then the gauge error will be ok. Always check pressure when tires are cold. Tire pressures also change 1 psi for every 10 degress of temperature change. This mean if you set your cold tire pressure to 80 psi at 40 degree temperture, then travel to a hot 90 degree temperature then your cold tire pressure will be 5 psi higher. The opposite happens when it is reversed.

[twindman]

Lynnwood, are you back at Union Pass again?

[mlh]

Originally Posted by twindman

Lynnwood, are you back at Union Pass again?

I wish. My wife can’t travel until she gets a hip replacement and a foot rework or just remove a toe. So long toe. The food rework recovery is 8 + weeks toe removal 2 weeks.
I would love to be up there. It’s my favorite place to camp. Lots of game, fishing is great. All I haft to do is be able to out run my wife if a brown bear wonts us for lunch. Seriously a friend and I were up there hiking and he had his dog with him. I ask “Dan what would happened if your dog ran up on a grisly?” Dan smiled and said “don’t worry he would bring him right back to us”.
Lynwood

[twindman]

Lynwood, I thought that Union pass was about the only place at 8300 feet except for the Big Horns (my favorite place). So where are you?

[mlh]

Originally Posted by twindman

Lynwood, I thought that Union pass was about the only place at 8300 feet except for the Big Horns (my favorite place). So where are you?

I’m sorry I didn’t mean I was on Union Pass that was several years ago.
Where in the big horns do you go?
Another place I enjoy on Wy is the Shirley Basin. On Union Pass you may see 2 or 3 cars a day. In the Shirley Basin you can go for week with out seeing anyone.
Lynwood

[CalandLinda]

Your OE tires should always be inflated to the placard recommended cold inflation pressures. With 5 PSI less in 16" tires you're going to lose around 600# in total tire load capacity.

The engineering of your tires accounts for the rise and fall of inflation pressures due to heat, cold and altitude. You should always start the day's travel at placard recommendations.

[TLightning]

Put the correct PSI for where you are in the morning....do that each morning.

[JGL]

I would not recommend it. Unless temperatures are low and you are driving 55 mph or less. Heat kills tires and low pressure allows more tire flex and heat generation. Much better to be 5 psi over. (Tires are Designed to handle significantly more pressure than max shown). Allows check cold. Low inflation is main cause for blowouts.

[paulinbaja]

Set your tires 80lb in the morning. All temperature and altitude changes are expected. That is why the tire says COLD next to the max pressure label.