ideal tire pressure
#1
Driver
Thread Starter
Join Date: Mar 2009
Location: pa
Posts: 134
Likes: 0
Received 0 Likes
on
0 Posts
ideal tire pressure
what should i set the tire pressure at? the tire says maximum psi of 51. if this is the case should i set it to 51? 49? 47? 31?
i have dunlop 5000 s or something like that.
i have dunlop 5000 s or something like that.
#3
Lead Lap
I'm on the 17" OEM with run-flats and tire pressure is set at 32 on mine....
#5
Whatever the suggested psi is on your door jam is where your tire pressure should be (don't rely on the sidewall).
FWIW...a few weeks ago before taking a 375 mile trip (L.A. - Phoenix), I set my pressure 'cold' to 30 psi and departed at 8AM. Once I reached Phoenix, psi increased to 37 (average speed was 72 MPH). Didn't drive my car for 26 hours. Before heading back home, tires were at 32 psi (Phoenix heat???). Set them back to 30 psi, Upon my return, tires were at 35 psi.
I conclude the drop of 2 psi coming home could be due to a late afternoon departure and averaging 61 MPH.
FWIW...a few weeks ago before taking a 375 mile trip (L.A. - Phoenix), I set my pressure 'cold' to 30 psi and departed at 8AM. Once I reached Phoenix, psi increased to 37 (average speed was 72 MPH). Didn't drive my car for 26 hours. Before heading back home, tires were at 32 psi (Phoenix heat???). Set them back to 30 psi, Upon my return, tires were at 35 psi.
I conclude the drop of 2 psi coming home could be due to a late afternoon departure and averaging 61 MPH.
Trending Topics
#8
Lexus Test Driver
Join Date: Oct 2006
Location: Texas
Posts: 864
Likes: 0
Received 0 Likes
on
0 Posts
My mechanic suggested +2 for the front to cancal out our 52:48 weight difference.
Also I remembered seen it somewhere in the news that you could improve the gas mileage by putting additional 5 PSI to the tires; so I am running at 40 FRONT 38 REAR.
Also I remembered seen it somewhere in the news that you could improve the gas mileage by putting additional 5 PSI to the tires; so I am running at 40 FRONT 38 REAR.
Last edited by slk_dds; 08-29-09 at 03:06 PM.
#9
F is for Fraud
Join Date: Aug 2009
Location: Québec
Posts: 1,174
Likes: 0
Received 0 Likes
on
0 Posts
The ideal tire pressure is written on the inside of your door jam along with tire size and maximum weight suggestions.
It is to be noted that whether or not the tire if filled with nitrogen, the pressure will remain the same as that which is noted within the door jam. The only advantage to nitrogen is that the pressure remains constant in a wider temperature range, whilst air expands or contracts under hotter or colder temperatures. Nitrogen remains relatively constant pressure-wise. This promotes even tire-wear, among other things.
It is to be noted that whether or not the tire if filled with nitrogen, the pressure will remain the same as that which is noted within the door jam. The only advantage to nitrogen is that the pressure remains constant in a wider temperature range, whilst air expands or contracts under hotter or colder temperatures. Nitrogen remains relatively constant pressure-wise. This promotes even tire-wear, among other things.
Thread
Thread Starter
Forum
Replies
Last Post