Probably important on a car like the 100hp...Im on 34/32 front rear / right now ...I think 35/32 is the 'specified' value.Even 34 is as high as Id like to go on the often damp ,greasy roads I travel on a fair bit daily.(But do MWay stretch too)Sometimes a little tweak to the PSI does wonders...Remember that a weather temperature change of even a few degrees Centigrade may change your tyre pressures a LOT!So check them tommorow !By the way Im always horrified that you UK folk have to PAY for your air(20p?!) in garages !!!Free over here in Republic of Ireland ....Mind you theres not too many things that are better value over here compared with UK!
Technical What Tyre PSI Do You Use?
- Thread starter ytareh
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Technical What Tyre PSI Do You Use?
Front 31. Rear 30 psi.
Garage air lines, wouldnt trust them, Michelin tyre pressure gauge and a foot pump.
Garage air lines, wouldnt trust them, Michelin tyre pressure gauge and a foot pump.
Where do you get these pressures from? The handbook gives the pressures in Bar not Psi. 2.2 in the front & 2.0 in the rear, that's 32 & 29 respectively, so both of you are running the wrong pressures.
Why not just work in Bar
Why not just work in Bar
There are some earlier posts on this:
try here: https://www.fiatforum.com/panda/154761-tyre-pressure.html?p=1638333
or here: https://www.fiatforum.com/panda/186200-not-so-smart-need-help.html?p=2004690
Either way, engineers and experts at Fiat and the tyre makers will have chosen values to give optimum mix of grip, wear. economy and comfort. I would suggest following their recommendations (which are in the instruction book...)
P
try here: https://www.fiatforum.com/panda/154761-tyre-pressure.html?p=1638333
or here: https://www.fiatforum.com/panda/186200-not-so-smart-need-help.html?p=2004690
Either way, engineers and experts at Fiat and the tyre makers will have chosen values to give optimum mix of grip, wear. economy and comfort. I would suggest following their recommendations (which are in the instruction book...)
P
This is very good advice: when the winter arrived with a bump in the middle of December, my tyre pressures fell dramatically. All to do with Boyles Law, I seem to recall...
32 all round.
29-30 psi all round at the moment. Never put more than 31-32 in the fronts. Seem to be wearing just fine after 10,000 miles (yes only 10k in just under 3 years).
For some reason I can't think about bar, and only PSI will do. I'm the same with fuel - gallons/mpg are what I think about, not l/km or l/mile. Apart from this I am very modern, honest. No inches or fl oz for me.
For some reason I can't think about bar, and only PSI will do. I'm the same with fuel - gallons/mpg are what I think about, not l/km or l/mile. Apart from this I am very modern, honest. No inches or fl oz for me.
Yeah I always check my tyre pressures when there are any big changes up or down in temperature. Personally I use the tyre manufacturers pressures (if provided) over Fiat's reccomendations.
I'm confused, why don't people just use what's in the handbook? Fiat know more about tyre pressures than most of us.
babbo umbro
Member
Do you mean the pressures on sidewall?These are MAXIMUM Values and wouldnt be recommended for daily use.
LOL
Of course I don't inflate tyres to the max pressure, I'm talking about checking the manufacturers website for the pressures they reccomend for that particular car and tyre combo.
ultrageek
New member
Certainly there is no harm in following the manual, and neither is there any if you should decide to over inflate a wee bit.
Of course, over inflating, has it's pro's and con's: you get a slightly better FC but at the reverse on a bumpier ride.
For me, FC matters more, so i'm at 33 and 32 respectively for front and back and it's ok as I'm on the expressway 97% of my entire commute to work...
Of course, over inflating, has it's pro's and con's: you get a slightly better FC but at the reverse on a bumpier ride.
For me, FC matters more, so i'm at 33 and 32 respectively for front and back and it's ok as I'm on the expressway 97% of my entire commute to work...
It think someone should mention that the correct inflation of the tyre is to give it the best over pattern touching the road ! If you under inflate you stand a chance of the sidewalls rubbing while cornering (causing wear and overheating, often the cause of blow outs). If you over inflate it means less of the tire will be in contact with the road so you are increasing your stopping distances and cornering ability....(and I might add, in the event of you having an accident it could mean the authorities checking the pressures and holding you totally responsible for the accident... )
Steve
Steve
A few PSI won't result in trouble post accident. I agree that 10-15 PSI could though. Of course it could be an unknown puncture anyway. I'd never let me tyres get more than a few PSI out of 'spec'.
Interestingly, on my TVR I run 24-25 PSI all round. TVR originally recommended 26, then 28 PSI in later years on my car. However it handles very nervously on the higher pressures. Every owner I know runs 24-25 PSI which makes the car much more stable. Tyre wear is fine - 13k on my current rears, 22k on the fronts, including track days.
Because the Panda 100 isn't what you'd call comfy - especially with the potholes out there at the moment. Dropping a few PSI gives a tiny bit more flex in the tyres and if it means my suspension survives the winter and my back is less achey then all is good. I would never let the pressures drop dangerously low and I do check them all the time. After 10k miles my F1s are wearing evenly all round and the car handles just fine.
I think as long as you keep on top of things a few PSI is hardly going to cause issues. If however you go for a lower pressure and set it when it's warm and then it cools down for a couple of months it could be a problem. I usually check pressures every couple of weeks as well as when there are big changes in temperature.
P100 GRR
New member
I wouldn't worry about the pressures getting you in trouble, it's more the wear on the tyre e.g. lack of tread which will get you into trouble.
I deal with accidents all the time and if we think the collision is caused by a problem with the vehicle the first place we look is at the tyres. Although i've never had any cause to check the pressures.
The most common type of collision we would check the tyres would be a rear wheel drive car on a wet road coming out of a bend.
A few weeks before christmas I had to drive a Porsche Boxster out of the tree the driver had put it in so recovery could get at it. As we dealt with that one another Boxster on the opposite side of the dual carriageway had done exactly the same thing coming the other way:bang:
