3-4lbs over the sticker.
Share your personal tire psi vs the recomemded
- Thread starter 1978elcamino
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I usually just run around 2-3 psi higher than the door recommended pressure.
Tires: 39
Placard: 32
Like others mentioned and in my experience, edge wear is a real problem at factory settings. Still rides nice and handling is improved.
Placard: 32
Like others mentioned and in my experience, edge wear is a real problem at factory settings. Still rides nice and handling is improved.
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Anticipating cooler weather when I needed to add air to the Buick the other day I put them at 32 when it calls for 30, much more on these tiger paws and the start riding like a lumber wagon.
On the truck I keep them at 45 when it calls for 50 but again way to firm for me.
On the truck I keep them at 45 when it calls for 50 but again way to firm for me.
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Overnight cold on door decal. Ed
35 on the stick for the Atlas and I run 38.
36F/44R on the Porsche and I run 35F/40R.
36F/44R on the Porsche and I run 35F/40R.
VW Jetta 34 front and 32 rear ( -2, -4 per placard)
More give a hard and twitchy ride and no handling improvement.
Where it run it give the "magic carpet ride" and good handling.
On the Subaru with non factory Sumitomo tires
I am +2 front and rear over placard. Any less they roll over and steer poorly.
You guys going way over placard PSIG on factory tire size - have you tried emergency maneuvers in the rain?
Could be a big risk to unrecoverable oversteer/fishtailing along with pounding out strut top steering bearings.
Edge wear make sure you don't have excessive toe. In the front on FWD anymore than 0.10 deg may be too much
More give a hard and twitchy ride and no handling improvement.
Where it run it give the "magic carpet ride" and good handling.
On the Subaru with non factory Sumitomo tires
I am +2 front and rear over placard. Any less they roll over and steer poorly.
You guys going way over placard PSIG on factory tire size - have you tried emergency maneuvers in the rain?
Could be a big risk to unrecoverable oversteer/fishtailing along with pounding out strut top steering bearings.
Edge wear make sure you don't have excessive toe. In the front on FWD anymore than 0.10 deg may be too much
*I run 3 PSI ~ 4 PSI over the door placard recommendation and find I get a little less tire edge wear as previous poster indicated ... I'm concerned going over 4+ PSI over as not only ride will begin to suffer but also worried I might prematurely begin wearing out steering components (or is that just a myth) ?
My tires are 205/75R15s my tires call for 35 psi. I call for 32 psi because it makes for better traction on the tires for rain, snow, and especially sleet.
Originally Posted by ChrisD46
I'm concerned going over 4+ PSI over as not only ride will begin to suffer but also worried I might prematurely begin wearing out steering components (or is that just a myth) ?
In my experience, the more air in the tires the less overall rolling resistance.
Increasing the pressures on a manual steering car, makes steering easier.
Going by that logic, it would also reduce the wear (and pressures) on steering components.
I'm concerned going over 4+ PSI over as not only ride will begin to suffer but also worried I might prematurely begin wearing out steering components (or is that just a myth) ?
In my experience, the more air in the tires the less overall rolling resistance.
Increasing the pressures on a manual steering car, makes steering easier.
Going by that logic, it would also reduce the wear (and pressures) on steering components.
My pickup is supposed to be 50/80 f/r. Of course when it's empty it doesn't ride so great like that. So I run 45/50 , or in the winter I'll even drop the rears down to 40 so it can move without breaking traction. Of course whenever I tow, I run the rears at 80.
My Subaru I run at 36/35. That's spec'd 30f/29r - always seemed a bit low to me. There's a little mileage inprovement doing so and I kind of like the ride better.
My Subaru I run at 36/35. That's spec'd 30f/29r - always seemed a bit low to me. There's a little mileage inprovement doing so and I kind of like the ride better.
For me, it's variable for a reason.
Always check/inflate cold. Never warmed up. If you must check warmed, do not compensate for it. If you want to be at 35, inflate to 35 when warmed (this will end up at ~32 cold and will never get you in trouble with the maximum side).
If you're still using the original tires from the factory, go by the door sticker as a minimum, and go by the tire's limit as a maximum. Personally I like to be at least 5psi below the cold maximum, but sometimes that's not possible with factory tires (recommended 32 and max 35 as an example).
Once those original tires are gone, the sticker is irrelevant. I use the rule of 30psi as a minimum, and 5psi below the max on the upper end. Usually my tires max between 44-51psi (cars). Typically my tires are usually between 32-40psi, most commonly at 35.
Then there's also the visual factor. If at 32psi the tire looks low, I increase it within the above rules to help with tire wear. If it looks low at 39 on a 44 max tire, well it's staying at 39.
If there's a lot of weight in the car and/or going on a road trip, I set the pressures higher than usual (but still within the above rules). Never had a flat or blowout (other than uncontrollable nails) in my life. Of course I replace my tires at 2/32 like a sensible person should too.
I have a family member who uses a different rule though. He reads the individual tire's maximum and inflates it to that, regardless of hot/cold/winter/summer/heavy truck/tiny Yaris. I've always hated that. Seems like a blowout from too much pressure waiting to happen.
Always check/inflate cold. Never warmed up. If you must check warmed, do not compensate for it. If you want to be at 35, inflate to 35 when warmed (this will end up at ~32 cold and will never get you in trouble with the maximum side).
If you're still using the original tires from the factory, go by the door sticker as a minimum, and go by the tire's limit as a maximum. Personally I like to be at least 5psi below the cold maximum, but sometimes that's not possible with factory tires (recommended 32 and max 35 as an example).
Once those original tires are gone, the sticker is irrelevant. I use the rule of 30psi as a minimum, and 5psi below the max on the upper end. Usually my tires max between 44-51psi (cars). Typically my tires are usually between 32-40psi, most commonly at 35.
Then there's also the visual factor. If at 32psi the tire looks low, I increase it within the above rules to help with tire wear. If it looks low at 39 on a 44 max tire, well it's staying at 39.
If there's a lot of weight in the car and/or going on a road trip, I set the pressures higher than usual (but still within the above rules). Never had a flat or blowout (other than uncontrollable nails) in my life. Of course I replace my tires at 2/32 like a sensible person should too.
I have a family member who uses a different rule though. He reads the individual tire's maximum and inflates it to that, regardless of hot/cold/winter/summer/heavy truck/tiny Yaris. I've always hated that. Seems like a blowout from too much pressure waiting to happen.
I often go a couple above. No impact to wear. Firms up the ride a bit too. I think you have to really overinflate to impact wear. Our Camry's though I tend to leave at 32psi. They're Camry's after all.
On a prior car I was running the summers at like 8psi over, but when I tried that with winter tires it was a no-go, those tires found every groove in the pavement and pulled. Dropped down to 32psi or so and all was well.
I usually leave my truck at 32-35psi but when I was moving and towing a trailer I wound up bumping to 40 or 42 on the rear tires as handling seemed a bit wonky. Door says 32 but by jove, things felt a bit soft back there.
On a prior car I was running the summers at like 8psi over, but when I tried that with winter tires it was a no-go, those tires found every groove in the pavement and pulled. Dropped down to 32psi or so and all was well.
I usually leave my truck at 32-35psi but when I was moving and towing a trailer I wound up bumping to 40 or 42 on the rear tires as handling seemed a bit wonky. Door says 32 but by jove, things felt a bit soft back there.
Originally Posted by RayCJ
2018 Mazda3. Door sticker says 36 / 36. Tire max is 51.
I run 38 / 38 measured cold after sitting all night. At temperature they rise to 40 or 41.
Not concerned about minuscule loss of handling on wet roads because, I know how to drive.
That's funny.
I am an advanced skillset driver but
Someone pulls out in front of you from a left side road on the State Route 133, it's raining lightly, you steer around them to the left, but the rear end whips around with snap oversteer and you are going backwards in to a utility pole.
Jab .. jab JAB the brakes - BAM!
Out the back window you go.
But you are not "way overdoor placard" so maybe you are OK.
2018 Mazda3. Door sticker says 36 / 36. Tire max is 51.
I run 38 / 38 measured cold after sitting all night. At temperature they rise to 40 or 41.
Not concerned about minuscule loss of handling on wet roads because, I know how to drive.
That's funny.
I am an advanced skillset driver but
Someone pulls out in front of you from a left side road on the State Route 133, it's raining lightly, you steer around them to the left, but the rear end whips around with snap oversteer and you are going backwards in to a utility pole.
Jab .. jab JAB the brakes - BAM!
Out the back window you go.
But you are not "way overdoor placard" so maybe you are OK.
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