Help Needed with tyre pressure

[james7471827906]

Gone from a 14" steel rims to 15" alloys, the sheet that i had when purchasing the alloys said "if moving to a larger wheel diameter you must add 1.5lbs to every inch increased ie. changing a 15" wheel O.E wheel @30lbs PSI to a 17" wheel wil require 33lbs PSI tyre pressure (30+(2x1.5)

So is just 1.5lbs PSI pressure on each corner.

My question is when i was checking the clio handbook is state my tyre pressure for motorway use should 2.0 on the front 1.9 on the back......what measurements are the renault books using not PSI obv?

sorry if i sound a bit dumb, not used to anything like this 1st car etc...just want to get it right especially now in the winter.

 

[Lee coley]

it will that amount on each corner,but that doesnt sound right to be honest,but im no expert,what wheels are they?

 

[james7471827906]

fox racing 15"

thanks

 

[Lee coley]

id say 31psi all around

 

[james7471827906]

ok thanks..what measurements do the renault books use not PSI?

 

[james7471827906]

any advnace on 31 all the way around ?

 

[2thumbs]

33 front
30 back.

 

[james7471827906]

thanks....

as i mentioned reno say 2.0 front 1.9 back.....what are these measurements in PSI anyone??

 

[JamesS]

The units will be 'bar'
2.0bar = 29psi
1.9bar = 27.5psi