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Recommended pressure 265/60R18
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JonM
 


Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1247

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4
Recommended pressure 265/60R18

The old girl is being treated to some new shoes (and feet) next week.

I've treated her to some Compomotive 18"s and putting BIG AT KO2 265/60/18s on. Does anyone know recommended pressures for these?

What were LR's recommended pressures for factory fitted 18“ wheels? MY2022 D5 HSE D300 - with extra nice bits added
MY2019 D5 HSE 3.0 SDV6 - sold to a dealer for a crazy price! - So good I bought another!
MY2012 D4 HSE 3.0 SDV6 - retired to a new home  
Post #17171128th Oct 2016 7:47 pm
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Naks
 


Member Since: 12 Jul 2010
Location: Stellenbosch, Republic of the Western Cape
Posts: 777

South Africa 2011 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

Good question Jon.

I've just fitted 265/65R18 BFG AT to mine, what pressures do you guys recommend? --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: http://bit.ly/22l8YHh
Range Rover/Sport L320/L322/L494 Workshop Manual: http://bit.ly/2iH7jgG  
Post #174057428th Nov 2016 10:17 am
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Sc0tt
 


Member Since: 03 Aug 2014
Location: Brisbane
Posts: 43

Australia 

Haha....Looks like we've all just put this size on our beasts. I just did the same size in Bridgestone D697 LT's.

I have been looking for the idea pressure and have found lots of conflicting information. There is actually a formula that supposedly gives values that are pretty close.

PSI = (max tyre psi / tyre load rating) * actual load

This gave me 33psi front and 36 rear, bang on the placard. When I tried this over a few hundred km the steering felt heavy and economy was affected by about 1.5l per 100km.

I added 4 psi to the above for the return journey and it was much better for both steering feel and economy.

Be great to see other opinions.

Scott  
Post #174059528th Nov 2016 11:11 am
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Naks
 


Member Since: 12 Jul 2010
Location: Stellenbosch, Republic of the Western Cape
Posts: 777

South Africa 2011 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

psi? that is this, the 18th century? Rolling with laughter

Ok, so 37/40, so that's 2.6/2.8 bar

thanks! Thumbs Up --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: http://bit.ly/22l8YHh
Range Rover/Sport L320/L322/L494 Workshop Manual: http://bit.ly/2iH7jgG  
Post #174061228th Nov 2016 11:33 am
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biskit
 


Member Since: 23 Dec 2009
Location: in my Mancave.
Posts: 1376

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Only had mine on 3months, I've tried a few combinations and ended up just under 40 on all tyres, works ok for me. Smile Mantec sump guard.
Prospeed tree slider/steps.
Flack duel battery system.
18"Compomotive/AT3 tyres
Brembo 4pot front brakes  
Post #174066328th Nov 2016 1:05 pm
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JonM
 


Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1247

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

First I tried the standard unloaded car pressures 33/36. The wet road grip, road noise and wallow in the corners was horrible. So, I increased to the loaded car pressures 36/42 and they seem perfect, no more wallow or noise than the standard tyres and plenty of wet grip Thumbs Up MY2022 D5 HSE D300 - with extra nice bits added
MY2019 D5 HSE 3.0 SDV6 - sold to a dealer for a crazy price! - So good I bought another!
MY2012 D4 HSE 3.0 SDV6 - retired to a new home  
Post #174068828th Nov 2016 2:14 pm
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Naks
 


Member Since: 12 Jul 2010
Location: Stellenbosch, Republic of the Western Cape
Posts: 777

South Africa 2011 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

The tyres were fitted at 2.2 all around.

I put them up to 2.6 this morning, and wow, what a difference. Much better ride now and less tyre noise as well.

I will try them at 2.8 tomorrow to see the difference. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: http://bit.ly/22l8YHh
Range Rover/Sport L320/L322/L494 Workshop Manual: http://bit.ly/2iH7jgG  
Post #174103429th Nov 2016 9:25 am
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