Tire Pressure Range For Summer

[jkburg]

The Facts:
I have a Sasquatch 4 Door 2021 Bronco.
My dealer is a complete incompetent dumbass, that I want to divorce.
Brought it in for the safety recall. I asked them no less than 3 times to reset my tire pressures for Summer. They said, part of the inspection which they will do.
Dealer gave me the inspection sheet with the tire pressures set at 35. He did not touch them because they were EXACTLY where they were when I dropped it off.
Dealer is either incompetent or a liar, but probably both.

My Question:
Assuming a temperature range of 70-90 during the summer. I am guessing my tires should be set about 38/39 psi when it's 80 but thoughts. Mostly city with some highway driving. Am I right or wrong.

Sponsored

 

[Scott R Nelson]

It's not going to make a big difference. I try to run 39 all year for highway use and drop to about 20 off road. I can air down in three minutes, but it's a good ten minutes to air back up with my SmittyBilt pump and 4-way valve contraption.

 

[bradcd]

What tire pressure is recommended in the door sticker? The pressure will increase as the tire is driven and heats up. You have no means to pump in air yourself?

 

[jkburg]

No summer rating, only 39 for winter. Typically it's the same for the whole year but with the crazy temperature ranges I wanted to make sure I was getting the best mileage and use out of the tires. They were popping all the way up to 42/43 when the temp was in the 90's, and that just seemed way too high. Felt like it wasn't gripping well in turns.

 

[BenderSquatch]

Is there any recommendations in the owner's manual by any chance?

 

[RHeinz]

I think you are depending on your dealer too much. They are (legally) required to follow the established specifications for the vehicle. Probably as is Discount Tire. I don’t see “Winter” vs “Summer” tire pressures recommendations posted on the door frame placard. On road, off road, summer, winter, it’s up to you to determine what you want to run depending on ambient conditions. Don’t blame Ford or the Dealer,

 

[Lcubed]

time to get the chalk out ...

 

[RHeinz]

No summer rating, only 39 for winter. Typically it's the same for the whole year but with the crazy temperature ranges I wanted to make sure I was getting the best mileage and use out of the tires. They were popping all the way up to 42/43 when the temp was in the 90's, and that just seemed way too high. Felt like it wasn't gripping well in turns.

Our winter here in Houston is not the same as your winter in Wisconsin. However, 39 psig is 39 psig regardless of the temperature. When the temperature goes up, your tire pressure will go up, when the temperature goes down your tire pressure will go down. It’s up to you to adjust the pressures to what you think is optimal.

 

[Scott R Nelson]

Is there any recommendations in the owner's manual by any chance?

The owner's manual says to look inside the driver's door for the sticker that indicates the pressure to use. Mine says 39 psi.

The only difference in cold weather is that it's likely to drop one or two psi in the winter. I've had other cars come up a bit low once it got cold. I run the pressure up and down enough when I go off road so that I'm always checking it anyway.

 

[Ripcurl]

Use the door frame label as a benchmark and adjust +/- to your tastes

 

[Razorbak86]

No summer rating, only 39 for winter. Typically it's the same for the whole year but with the crazy temperature ranges I wanted to make sure I was getting the best mileage and use out of the tires. They were popping all the way up to 42/43 when the temp was in the 90's, and that just seemed way too high. Felt like it wasn't gripping well in turns.

The 39 psi recommended on the door sticker is just a cold pressure rating, not a seasonal (winter) rating, established for maximum fuel efficiency. "Cold" here simply means the pressure is measured when the vehicle is not moving and the tires are not warmed up (e.g., in a covered garage). If the tires are inflated at 39 psi (cold), the pressure will quickly increase to 42-43 psi while driving after the tires warm up. That's normal.

If the ride is too firm for you, use a pencil-sized tire pressure gauge to reduce the cold pressure by 2-3 psi, and test drive it as the pressure rises during operation. If the ride is still too firm, lather, rinse and repeat, as necessary.

Lowering the pressure will improve the ride quality by absorbing bumps, but it will also lower fuel efficiency and wear. As with many other things in life, there are trade-offs with the choices you make regarding tire pressure.

 

[JohnnyBronco]

Cold temp means room temp, prior to driving. If the outside temp is 90-100 you want to lower psi and if 0-32 add until psi equals door sticker unless you run higher for load or sustained highway.

SUMMER AIR can be found right here with blinker fluid https://petroleumservicecompany.com... summer, the opposite,or worse: a popped tire.

 

[Headsong]

What RipCurl posted.
Never heard of such a thing........

 

[AKBronc49]

I'm real happy at 35-36psi stock Sasquatch.

 

[AMTRV]

Almost like an oil thread.

Sponsored