Have read the below in the manual… 2011 L322, but imagine it applies to everything.

I thought I’d follow it, so a few weeks ago I increased normal pressures by 2 PSI and I find it’s now crashing over pot holes and I feel most of the bumps in the road now… not as comfortable as it normally was. Turn in is a bit tighter though…

Is it worth it? Is it right? As it’s less than 10 degrees now, it means like 35 PSI in the front?

Click image to enlarge

Pressure varies with temperature. If you read that piece carefully, it says that tyre pressures can be changed at the start of a journey, OR they can be adjusted on spec.

It doesn't matter if you start your day at 10deg or zero degrees, if you check/adjust your tyres when they are cold just put them to the correct pressure. DO NOT ADJUST FOR AMBIENT TEMP

36psi on a cold tyre is 36psi at whatever the ambient temterature happens to be. You don't have to make an adjustment unless you are driving from the arctic to the sahara without stopping (which is difficult)......! The older I get, the more I realise that people confuse wrinkles for wisdom

I wait for TPMS to tell me the tyre is low  2018 SE SDV8 4.4 Byron Blue

i just maintain air pressure. i have a compressor in garage so it is a weekly ritual. before that i would check if there was a sudden drop or increase in temp 2012 Vogue 4.4 TDV8 - Current
2014 Navara V6 - Gone
2004 Vogue TD6 - Gone
Grand Cherokee - Gone
Discovery V8 (LPG) - Gone
Discovery TD5 - Gone

I’ve never adjusted tyre pressures for ambient temperature on any of my cars before.

Think I will set them back to what the label says. Don’t have TPMS, but imagine that won’t take ambient temp into account.

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Nope never done that. I just apply the pressure as per the label. Only adjust for the tyres i am running or the load I have.

It depends on where your car lives. If it is outside or in an unheated garage then it is just a case of maintaining the pressures at the recommended level for the car's load, whether you are towing etc. This is what happens to mine, though I will also check/adjust if the car feels wrong.

If your car is in a heated garage, say at plus 15 degrees and it is minus 5 outside then if the tyre pressures are "right" in the garage then they will drop to a level below what LR recommend when you are outside for any length of time. So in such situations you can increase the pressure at garage temperature to compensate for the anticipated drop. The LR chart tells you what to do if that is your situation. Only Range Rovers since 1988

As JMC points out - you shouldn't need to do anything special unless you are making an extreme journey.

What it's saying is that if you inflate your tyres when its +20 degrees and then drive somewhere where it's -10 degrees - expect them to read 6psi under once you are there & tyres cooled etc.

It's not saying that you should run at higher pressures during the winter.

It is simply saying adjust them before you set off - or check them once you get there & expect to need to add some air if going from hot to cold.

any responsible car owner should check pressures weekly at outside ambient temperatures I.e before you drive - this will account for any seasonal changes. 2012 TDV8 Vogue (L322)

Even in the days of having TPMS systems? Or do you count checking it on the TPMS as being responsible as well?

I’ll check mine every time my car starts, and I get warned on a app on my phone for my other cars.

If you have TPMS then clearly no. Still worth doing a weekly visual check for wear, damage etc. 2012 TDV8 Vogue (L322)

Thanks all. I clearly have misunderstood what it meant. Thought I might have, hence my query. They are back at the label pressures now. Much better 🤣

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport