Optimal Tire Inflation Psi
#1
Optimal Tire Inflation Psi
I am still riding on stock tires and wheels. I will keep the stock wheels but will likely replace the tires at some point when they need it.
Right now the tires are still inflated to door jamb numbers. 32/33 I think.
Has anyone experimented with different inflation numbers on their Fit? I expect you could pump more air in and get better mileage and likely better tire life. Too much and the tires only wear in the middle and the ride suffers.
Is there a better psi to run?
Right now the tires are still inflated to door jamb numbers. 32/33 I think.
Has anyone experimented with different inflation numbers on their Fit? I expect you could pump more air in and get better mileage and likely better tire life. Too much and the tires only wear in the middle and the ride suffers.
Is there a better psi to run?
#2
I am still riding on stock tires and wheels. I will keep the stock wheels but will likely replace the tires at some point when they need it.
Right now the tires are still inflated to door jamb numbers. 32/33 I think.
Has anyone experimented with different inflation numbers on their Fit? I expect you could pump more air in and get better mileage and likely better tire life. Too much and the tires only wear in the middle and the ride suffers.
Is there a better psi to run?
Right now the tires are still inflated to door jamb numbers. 32/33 I think.
Has anyone experimented with different inflation numbers on their Fit? I expect you could pump more air in and get better mileage and likely better tire life. Too much and the tires only wear in the middle and the ride suffers.
Is there a better psi to run?
#3
On other cars I have run the recommended pressures and kept track of tire wear across the width of the tread.
Invariably, the front tires wear on the edges more than the middle so I adjust the pressure upward., usually about 8 PSI higher than recommended. This seems to make the fronts wear evenly.
The rears don't wear much at all regardless of pressure.
Invariably, the front tires wear on the edges more than the middle so I adjust the pressure upward., usually about 8 PSI higher than recommended. This seems to make the fronts wear evenly.
The rears don't wear much at all regardless of pressure.
#5
I don't know what you mean by 'recalibrate the TPMS' but the TPMS simply measures pressure and when it drops below a pre-set amount (I've heard 10% under recommended pressure, probably in the high twenties) then it triggers. If you run the tires up to 40 psi the TPMS doesn't care, it'll still alert you only when it drops below where they're set.
#6
I don't know what you mean by 'recalibrate the TPMS' but the TPMS simply measures pressure and when it drops below a pre-set amount (I've heard 10% under recommended pressure, probably in the high twenties) then it triggers. If you run the tires up to 40 psi the TPMS doesn't care, it'll still alert you only when it drops below where they're set.
So in Answer to the original question, Yes, if you run higher tire pressures, you should re calibrate the TPMS.
I have found better fuel economy can be found with 40 psi+ pressures! but it also has a negative affect on the ride of the car.
#7
From this page:
http://owners.honda.com/vehicles/inf...m-%28TPMS%29/3
Tire Pressure Monitoring System
An underinflated tire can impede handling and can be a safety hazard, so the Tire Pressure Monitoring System (TPMS) uses pressure sensors mounted in each wheel that send readings to a central electronic control unit to help you stay prepared. The system evaluates whether the pressure is at an acceptable range. If a reading is approximately 25% below the recommended level, the Fit will alert you through a warning light on the instrument panel.
http://owners.honda.com/vehicles/inf...m-%28TPMS%29/3
Tire Pressure Monitoring System
An underinflated tire can impede handling and can be a safety hazard, so the Tire Pressure Monitoring System (TPMS) uses pressure sensors mounted in each wheel that send readings to a central electronic control unit to help you stay prepared. The system evaluates whether the pressure is at an acceptable range. If a reading is approximately 25% below the recommended level, the Fit will alert you through a warning light on the instrument panel.
Last edited by Brain Champagne; 07-19-2014 at 08:23 PM.
#8
And yet the owner's manual says:
Instead of directly measuring the pressure in each tire, the TPMS on this vehicle
monitors and compares the rolling radius and rotational characteristics of each
wheel and tire while you are driving to determine if one or more tires are
significantly under-inflated. This will cause the low tire pressure/TPMS indicator to
come on.
Sloppy that it contradicts...
Instead of directly measuring the pressure in each tire, the TPMS on this vehicle
monitors and compares the rolling radius and rotational characteristics of each
wheel and tire while you are driving to determine if one or more tires are
significantly under-inflated. This will cause the low tire pressure/TPMS indicator to
come on.
Sloppy that it contradicts...
#9
I don't know what you mean by 'recalibrate the TPMS' but the TPMS simply measures pressure and when it drops below a pre-set amount (I've heard 10% under recommended pressure, probably in the high twenties) then it triggers. If you run the tires up to 40 psi the TPMS doesn't care, it'll still alert you only when it drops below where they're set.
#10
That's why it says:
Frankly, I'm happy that the new Fit has sensorless TPMS. The prospect of having to deal with sensor at tire change time, "Gee, sir, we "accidentally" broke two of your sensors but new ones are only $100..." was really not attractive to me. As long as I can recalibrate the sensors whenever I want I am happy.
Originally Posted by Honda's Website
Content may not apply to all models. See Related Information or consult your owner's manual for specific information about your vehicle.
#12
On other cars I have run the recommended pressures and kept track of tire wear across the width of the tread.
Invariably, the front tires wear on the edges more than the middle so I adjust the pressure upward., usually about 8 PSI higher than recommended. This seems to make the fronts wear evenly.
The rears don't wear much at all regardless of pressure.
Invariably, the front tires wear on the edges more than the middle so I adjust the pressure upward., usually about 8 PSI higher than recommended. This seems to make the fronts wear evenly.
The rears don't wear much at all regardless of pressure.
#18
#19
unless you're taking about the donut where it says 'inflate to' the psi stamped on the sidewall is usually the max psi the tire can handle. its waaaay too high for a Fit.. well, im sure the hypermilers dont care and use it anyways.
there are just so many better ways to save money and be eco-friendy.
there are just so many better ways to save money and be eco-friendy.
#20
unless you're taking about the donut where it says 'inflate to' the psi stamped on the sidewall is usually the max psi the tire can handle. its waaaay too high for a Fit.. well, im sure the hypermilers dont care and use it anyways.
there are just so many better ways to save money and be eco-friendy.
there are just so many better ways to save money and be eco-friendy.