Tire pressure? Do you use the recommended door psi or tire psi?
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Member
Joined: Mar 2008
Posts: 31
From: mpls
Tire pressure? Do you use the recommended door psi or tire psi?
I was just wondering what others use for tire pressure in there FIT sports. The tires say 45 psi and the door says 32 psi. Which one should I use?
Member
Joined: Oct 2008
Posts: 577
From: NJ
Neither. Try 36 front/34 rear (after they have totally cooled down, not right after driving) or something like that for the best results.
And check your pressures once a month - temperature changes affects the pressure in them.
And check your pressures once a month - temperature changes affects the pressure in them.
I'm with you. I currently run 35F/33R measured first thing in the cold morning. I like the ride quality as is, handling/braking is good, steering feel is good and my mileage...can't complain.
Member
Joined: Nov 2007
Posts: 105
From: libertyville, il
Wow 38-45 PSI? lol 1st off never go what the tire says, thats the max. PSI for the tire. Go what the car says, 32.
You run anything above that, 32, the center of your tires are gonna go bald due to over inflation and wear out faster.
You run anything above that, 32, the center of your tires are gonna go bald due to over inflation and wear out faster.
Member
Joined: Feb 2007
Posts: 1,244
From: Colorado Springs, CO
I usally go about 35psi. I know you get a little bit better mpg going higher, but you also ad more wear and tear to the tire. So you choose, pay more for gas, or pay to replace the tires sooner. Hence I don't max out the psi like a few folks have done.
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Joined: Aug 2008
Posts: 935
From: Sudbury, ON, CANADA
Member
Joined: Jun 2007
Posts: 524
From: Dallas, TX
You can do a bit of handling tuning (oversteer vs understeer) via tire pressures. A little more pressure in the fronts helps reduce understeer/push.
Member
Joined: Feb 2007
Posts: 1,244
From: Colorado Springs, CO
I better check it before my road trip next week lol.
Member
Joined: Aug 2008
Posts: 935
From: Sudbury, ON, CANADA
Thanks for explaining! + Rep
Member
Joined: Aug 2008
Posts: 935
From: Sudbury, ON, CANADA
Silly me, he's now at 65 PSI...no kidding! It's this guy "pb and h"
Member
Joined: Oct 2008
Posts: 577
From: NJ
The only time you want to possibly bump up the rear is if you know you'll have an extended trip with a laden down car.
I would never ever run tires at the sidewall PSI.
Member
Joined: Aug 2008
Posts: 935
From: Sudbury, ON, CANADA
Car is front heavy - front engine front wheel drive. The higher pressure helps compensate the most when cornering as most of the load is on a single front tire at that point, thus improving the handling a bit.
The only time you want to possibly bump up the rear is if you know you'll have an extended trip with a laden down car.
I would never ever run tires at the sidewall PSI.
The only time you want to possibly bump up the rear is if you know you'll have an extended trip with a laden down car.
I would never ever run tires at the sidewall PSI.
So what do people recommend? 35 psi front and 33 psi back seems "reasonable" to me...
45
45 all around. Mine's an 08 and the Dunlops say 51. Yeah I know 45 is very high. Guess what I put a high priority on mileage and yes it makes the ride more harsh! That's measured cold in my garage by the way.
The general "rule" is a few psi over the factory recommended specs. 33F/R is going to be more on the conservative side and skews a little toward ride comfort. I say if you're anything above 39 psi cold, your handling/braking/ride/tire wear/steering feel will suffer. But to each his own.
You may want to experiment for yourself and see what setting you like.
You may want to experiment for yourself and see what setting you like.