Tire Pressure.
#16
Lexus Fanatic
iTrader: (1)
To each their own... These recommendations on the vehicle are specific to the type of tire the car came with. As mentioned, I’m not running stock tire size. Some vehicles spec different pressure in the front vs the back. I like to keep the front a bit more than the back. My personal preference. I deflate my AT tires down to 18 when I’m in soft sand and about 27 when I’m mudding. Then back to 36 on the street. The manual also says there is no need to change the transmission fluid. Think this is engineering as well?
#17
Pole Position
Absolutely "to each their own." However, you are dispensing bad information to others, saying it is not an engineering thing, but a comfort thing. Words matter. You have a responsibility to your readers to not mislead them especially when it comes to the safety of their vehicles.
If someone loses control of their vehicle due to loss of traction on a dry highway at posted speeds, and kills themselves or others, investigators will check the tire pressures. If they are to spec, according to the door sticker, nobody would be liable except the driver. If the tire inflation was far from spec, the person who inflated the tires could be liable. I'm not saying it is an open and shut case, I'm just saying it would be a consideration in the case, and for good reason.
It's not common, but huge liability cases have been decided based on tire inflation. There was a famous case where Ford and Firestone were off the hook because the rear tires on an Explorer were underinflated. Underinflated rear tires can cause a loss of control. In this case, a whole family died in the roll-over.
If someone loses control of their vehicle due to loss of traction on a dry highway at posted speeds, and kills themselves or others, investigators will check the tire pressures. If they are to spec, according to the door sticker, nobody would be liable except the driver. If the tire inflation was far from spec, the person who inflated the tires could be liable. I'm not saying it is an open and shut case, I'm just saying it would be a consideration in the case, and for good reason.
It's not common, but huge liability cases have been decided based on tire inflation. There was a famous case where Ford and Firestone were off the hook because the rear tires on an Explorer were underinflated. Underinflated rear tires can cause a loss of control. In this case, a whole family died in the roll-over.
#18
Lexus Fanatic
iTrader: (1)
Absolutely "to each their own." However, you are dispensing bad information to others, saying it is not an engineering thing, but a comfort thing. Words matter. You have a responsibility to your readers to not mislead them especially when it comes to the safety of their vehicles.
If someone loses control of their vehicle due to loss of traction on a dry highway at posted speeds, and kills themselves or others, investigators will check the tire pressures. If they are to spec, according to the door sticker, nobody would be liable except the driver. If the tire inflation was far from spec, the person who inflated the tires could be liable. I'm not saying it is an open and shut case, I'm just saying it would be a consideration in the case, and for good reason.
It's not common, but huge liability cases have been decided based on tire inflation. There was a famous case where Ford and Firestone were off the hook because the rear tires on an Explorer were underinflated. Underinflated rear tires can cause a loss of control. In this case, a whole family died in the roll-over.
If someone loses control of their vehicle due to loss of traction on a dry highway at posted speeds, and kills themselves or others, investigators will check the tire pressures. If they are to spec, according to the door sticker, nobody would be liable except the driver. If the tire inflation was far from spec, the person who inflated the tires could be liable. I'm not saying it is an open and shut case, I'm just saying it would be a consideration in the case, and for good reason.
It's not common, but huge liability cases have been decided based on tire inflation. There was a famous case where Ford and Firestone were off the hook because the rear tires on an Explorer were underinflated. Underinflated rear tires can cause a loss of control. In this case, a whole family died in the roll-over.
Last edited by Lavrishevo; 01-07-21 at 05:02 PM.
#19
Pole Position
I would not inflate over 44psi. The reason is when the tires get hot, the air expand. The warning is not there for fun.
#20
My tires at 33 cold run 36 hot on both my ls and Sc, have stem mounted Tpms on both.
#21
Lexus Fanatic
iTrader: (1)
Difficult to see but my tires have about 18 pounds of pressure in this picture
Last edited by Lavrishevo; 01-07-21 at 07:51 PM.
#22
Pole Position
My point was not to irritate. Too, I don't want to discredit you, only what you are putting in writing. I simply want readers to become educated about proper inflation if they aren't already.
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Lavrishevo (01-08-21)
#23
FMany posts here about running different pressures. None with less than the door panel. May try the 36 on the front of my Sc. Car turns medium hard at 35/36 warmed up.
obviously car not made to rail corners. Chassis components flex I think also.
45 series did take a bit away. But the ride improvement was worth it.
Everything is a trade off.
costco put Tpms sensors in the car today so no tpms on the stems yet as i dismounted them in advance. Bet they put in 32 not 33 cold. Feels slightly soft. Let’s see if I am really that good at telling.
just a game to hone my skills.
obviously car not made to rail corners. Chassis components flex I think also.
45 series did take a bit away. But the ride improvement was worth it.
Everything is a trade off.
costco put Tpms sensors in the car today so no tpms on the stems yet as i dismounted them in advance. Bet they put in 32 not 33 cold. Feels slightly soft. Let’s see if I am really that good at telling.
just a game to hone my skills.
Last edited by Caflashbob; 01-08-21 at 10:02 PM.
#24
My passenger sides were 32psi. Drivers side 33. Seems I was a little right. I use nitrogen also.
may try 36 cold in the front next. Thanks for the suggestion
may try 36 cold in the front next. Thanks for the suggestion
#25
Pole Position
I don't see much of an advantage to running a higher pressure than the door sticker. Comfort aside, you want the greater contact patch the stock pressure provides. Besides being safer, it will make your tread wear more evenly. Generally, I monitor my tread wear evenness and adjust by a few pounds to correct for any uneven wear. Generally, people tend to run underinflated as air leaks out over time. This leads to more wear on the outside and inside edges of the tire. Overinflating a few pounds can provide some correction resulting in greater wear toward the center.
I only need to inflate my tires about every six months when I change the oil, or I'll check them anytime I'm taking a trip. I find they leak out 4-5 psi over six months, so I always inflate them a few pounds over spec. That way, as they leak down over time, I stay closer to the target pressure.
#26
It is best to not pay attention to anything but cold pressures, as that's what the door sticker and the max pressure on the sidewall refer to.
I don't see much of an advantage to running a higher pressure than the door sticker. Comfort aside, you want the greater contact patch the stock pressure provides. Besides being safer, it will make your tread wear more evenly. Generally, I monitor my tread wear evenness and adjust by a few pounds to correct for any uneven wear. Generally, people tend to run underinflated as air leaks out over time. This leads to more wear on the outside and inside edges of the tire. Overinflating a few pounds can provide some correction resulting in greater wear toward the center.
I only need to inflate my tires about every six months when I change the oil, or I'll check them anytime I'm taking a trip. I find they leak out 4-5 psi over six months, so I always inflate them a few pounds over spec. That way, as they leak down over time, I stay closer to the target pressure.
I don't see much of an advantage to running a higher pressure than the door sticker. Comfort aside, you want the greater contact patch the stock pressure provides. Besides being safer, it will make your tread wear more evenly. Generally, I monitor my tread wear evenness and adjust by a few pounds to correct for any uneven wear. Generally, people tend to run underinflated as air leaks out over time. This leads to more wear on the outside and inside edges of the tire. Overinflating a few pounds can provide some correction resulting in greater wear toward the center.
I only need to inflate my tires about every six months when I change the oil, or I'll check them anytime I'm taking a trip. I find they leak out 4-5 psi over six months, so I always inflate them a few pounds over spec. That way, as they leak down over time, I stay closer to the target pressure.
here is a link to the unit I am using. This is eBay. Same unit is on Amazon for much less.
https://www.ebay.com/itm/Vesafe-Tire...-/174380578822
Last edited by Caflashbob; 01-10-21 at 04:35 AM.
#28
I have three vesafes now and ordered a fourth unit today
#29
If you can be diligent and always watch your tire pressures, you can elect to disable the TPMS altogether and not deal with TPMS lights. YMMV.
#30
Pole Position
When you say you can disable your TPMS as long as you are diligent about watching your tire pressures, do you mean monitoring them with the Vesafe product? Monitoring them manually is far from ideal as a leak can occur at any time and you may not know it until it becomes an emergency. A warning light is even better than the Vesafe, as one might not be watching the cig-lighter display. It's hard to miss the dash light in your face!