Tyre Pressures

Hi folks, I have just purchased an L322 with 20 inch alloys which have 295/40 tyres.
Can you tell me what the tyre pressures should be?

do the chalk test.

?

Blow them up until they are forced off the rims. Then put 10psi less in them next time.

wammers said:

Blow them up until they are forced off the rims. Then put 10psi less in them next time.

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Ha ha

I always go around 5 psi under the max stated pressures on the tyres

wammers said:

Blow them up until they are forced off the rims. Then put 10psi less in them next time.

Click to expand...

Snigger

2.0_hippo said:

I always go around 5 psi under the max stated pressures on the tyres

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Tyre pressures are related to the corner weight of the vehicle, in most cases going to 5 psi under the sidewall max will be massively over-inflating the tyre to the point of distorting the tyre footprint.

StuckAgainSteve said:

Tyre pressures are related to the corner weight of the vehicle, in most cases going to 5 psi under the sidewall max will be massively over-inflating the tyre to the point of distorting the tyre footprint.

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I'm doing something wrong then lol

Not had any tyre problems as of yet
Done the same to all my cars ! Oops

So what pressure should my 20" tyres be at ? Lol

Try this... http://www.tyre-pressures.com/

The Mad Hat Man said:

do the chalk test.

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blow them up to a nominal value,
rub a line of chalk across the tyre,
drive a couple of hundred yards in the dry,
look at chalk mark,
if centre of chalk mark is worn off, decrease pressure,
if outside of chalk mark is worn off, increase pressure,
repeat until all of chalk is worn off uniformly,

tyre pressure is ideal for you motor, loaded as per test.

2.0_hippo said:

Try this... Tyre Pressures - Search for and find correct Tyre Pressure values for your car

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tried it Hippo, for mine it said i should have 16's LOL

no option for changing the sizes

I found the 20" and 22" options when you select range rover auto 5 door

Make sure your not selecting manual as that will relate to the p38 sizes which use 16" tyres lol