Tire Pressure - Toyota Yaris Forums

cm07yaris · 08-06-2007, 11:00 PM

Are you supposed to fill your tires to the max. pressure stated on the sidewall? If not, how much should you?

cm07yaris · 08-07-2007, 12:18 AM

anyone?

OldSuperSport · 08-07-2007, 12:24 AM

Usually you would keep the pressure at the sidewall PSI. I think its more important these days with the super low profile tires. In the old days you could overpressure a tire and get better mileage (a little more) at the expense of faster center tread wear.

cm07yaris · 08-07-2007, 12:37 AM

so go with the sidewall max pressure? thanks

cm07yaris · 08-07-2007, 12:37 AM

tires came mounted and balanced at 35psi, sidewall max is 50

churp · 08-07-2007, 12:40 AM

Toyota manual says 32 psi, their recommendation for handling and comfort.....pressure listed on the tire sidewall is a maximum according to the tire manufacturer, at this psi mpg will be better, but traction while cornering may suffer, ride will be harsh, and some say tires will wear in the center of the tread quicker.

Personally I use the max sidewall pressure for mileage.

Indianspringsaz · 08-07-2007, 01:03 AM

Max-44psig. Thats where I run them

mr_squiggle · 08-07-2007, 01:16 AM

Mine are kept at 40psi
Seems to do the trick nicely.

cm07yaris · 08-07-2007, 01:19 AM

thanks for the input, i'm also not running the stock tires. i'm running 205/50-16, i'll just have to experiment a little, i'm guessing 45+ should be fine for my needs. thanks again

Black Yaris · 08-07-2007, 02:30 AM

Oh God.... not this debate again...... 32-35psi is the pressure recommended for this car depending on the tire sizing you upgraded to.... som of ya'll are running much too high of pressure for daily driving, you are going to wear tires out way too fast....

Motorhead6T5 · 08-07-2007, 08:50 AM

Quote:

Originally Posted by Black Yaris

Oh God.... not this debate again...... 32-35psi is the pressure recommended for this car depending on the tire sizing you upgraded to.... som of ya'll are running much too high of pressure for daily driving, you are going to wear tires out way too fast....

+1 Ride must be harsh too. I run mine at 32.

grampi · 08-07-2007, 09:37 AM

If the recommended pressure is 32, then 37 psi is probably about the optimum pressure.

Black Yaris · 08-07-2007, 10:26 AM

I run my 17's with 205/40's at 35 psi for the best ride, handling, and tirewear...

voodoo22 · 08-07-2007, 11:59 AM

I keep mine at 40 psi.

A little harsher ride, but I like the way the car handles with less sidewall flex.

I don't know how much better FE I get with 40 psi, but it can't hurt.

Thotprawsis · 08-07-2007, 09:27 PM

I'm running the stock tires. I've had them @ 32psi when on long trips for comfort. 40psi seems to improve the preformance, but very harsh ride. 35psi is where I'm at now and seems to be a good compromise for every day use.

ricky2k1 · 08-07-2007, 11:38 PM

the sticker on your door has the optimum tire pressure for your car.
anything else could cause uneven tire wear.

churp · 08-08-2007, 12:02 AM

Quote:

Originally Posted by ricky2k1

the sticker on your door has the optimum tire pressure for your car.
anything else could cause uneven tire wear.

This only pertains to the stock tires w/stock rims. Changing rim width, tire size or aspect ratio, spring rates, how you load your vehicle, etc. makes the manufacturers recomendations meaningless.

grampi · 08-08-2007, 09:16 AM

Quote:

Originally Posted by ricky2k1

the sticker on your door has the optimum tire pressure for your car.
anything else could cause uneven tire wear.

Not true. I can tell you from personal experience the pressure listed on the driver's door IS NOT the optimum pressure. I have found that running your tires at about 5 psi over the recommended pressure increases tread life, improves handling (stiffer sidewalls), reduces tire noise, and improves fuel economy. The only thing that's better at the recommended pressure is the ride, and even then, only somewhat better. Some people run their tires at the max pressure listed on the tire's sidewall, however I've found door pressure +5 is usually the best compromise between getting all the other bennies and a smooth ride.

08-06-2007, 11:00 PM	#1
cm07yaris View User's Garage Drives: 2007 Toyota Yaris Blazing Blue Join Date: May 2007 Location: Appleton, WI Posts: 647	Tire Pressure Are you supposed to fill your tires to the max. pressure stated on the sidewall? If not, how much should you?

08-07-2007, 12:40 AM	#6
churp Clean and (dis)Functional View User's Garage Drives: Yaris 2dr--Black Betty Join Date: Mar 2007 Location: Tropical Minnesota Posts: 562	Toyota manual says 32 psi, their recommendation for handling and comfort.....pressure listed on the tire sidewall is a maximum according to the tire manufacturer, at this psi mpg will be better, but traction while cornering may suffer, ride will be harsh, and some say tires will wear in the center of the tread quicker. Personally I use the max sidewall pressure for mileage. __________________ ____________ Old School Cobble Jockey

08-07-2007, 01:16 AM	#8
mr_squiggle Upsidedown Drives: 2007 Yaris 1.3l Join Date: Jul 2007 Location: Australia (Western Australia) Posts: 6	Mine are kept at 40psi Seems to do the trick nicely. __________________ Conversation with a friend who owns a turbo car "Why would you do that to a yaris? It's a sissy car" My reply. "Because I can... and to scare people..."

08-07-2007, 02:30 AM	#10
Black Yaris der Zeck View User's Garage Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006 Location: Toledo, OH Posts: 5,231	Oh God.... not this debate again...... 32-35psi is the pressure recommended for this car depending on the tire sizing you upgraded to.... som of ya'll are running much too high of pressure for daily driving, you are going to wear tires out way too fast.... __________________

08-07-2007, 10:26 AM	#13
Black Yaris der Zeck View User's Garage Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006 Location: Toledo, OH Posts: 5,231	I run my 17's with 205/40's at 35 psi for the best ride, handling, and tirewear... __________________

08-07-2007, 12:18 AM	#2
cm07yaris View User's Garage Drives: 2007 Toyota Yaris Blazing Blue Join Date: May 2007 Location: Appleton, WI Posts: 647	anyone?

08-07-2007, 12:24 AM	#3
OldSuperSport Owner/Operator View User's Garage Drives: 2007 Yaris Hatchback Join Date: Aug 2007 Location: Ohio Posts: 1	Usually you would keep the pressure at the sidewall PSI. I think its more important these days with the super low profile tires. In the old days you could overpressure a tire and get better mileage (a little more) at the expense of faster center tread wear.

08-07-2007, 12:37 AM	#4
cm07yaris View User's Garage Drives: 2007 Toyota Yaris Blazing Blue Join Date: May 2007 Location: Appleton, WI Posts: 647	so go with the sidewall max pressure? thanks

08-07-2007, 01:03 AM	#7
Indianspringsaz Drives: 07 Bitchin Blue HB Join Date: Jul 2007 Location: AZ Posts: 106	Max-44psig. Thats where I run them

08-07-2007, 01:19 AM	#9
cm07yaris View User's Garage Drives: 2007 Toyota Yaris Blazing Blue Join Date: May 2007 Location: Appleton, WI Posts: 647	thanks for the input, i'm also not running the stock tires. i'm running 205/50-16, i'll just have to experiment a little, i'm guessing 45+ should be fine for my needs. thanks again

08-07-2007, 09:37 AM	#12
grampi Drives: Corolla Join Date: May 2007 Location: Ohio Posts: 325	If the recommended pressure is 32, then 37 psi is probably about the optimum pressure.

08-07-2007, 11:59 AM	#14
voodoo22 Drives: Yaris Sedan (auto) Join Date: Jun 2007 Location: Toronto, Ontario Posts: 545	I keep mine at 40 psi. A little harsher ride, but I like the way the car handles with less sidewall flex. I don't know how much better FE I get with 40 psi, but it can't hurt.

08-07-2007, 09:27 PM	#15
Thotprawsis View User's Garage Drives: '07 Blazin' Blue LB Join Date: Jun 2007 Location: Michigan Posts: 201	I'm running the stock tires. I've had them @ 32psi when on long trips for comfort. 40psi seems to improve the preformance, but very harsh ride. 35psi is where I'm at now and seems to be a good compromise for every day use.

08-07-2007, 11:38 PM	#16
ricky2k1 Drives: Black YARIS RS Join Date: Apr 2007 Location: Vancouver BC Posts: 16	the sticker on your door has the optimum tire pressure for your car. anything else could cause uneven tire wear.

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