Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1247
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
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
Member Since: 03 Aug 2014
Location: Brisbane
Posts: 43
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.
Member Since: 23 Dec 2009
Location: in my Mancave.
Posts: 1376
Only had mine on 3months, I've tried a few combinations and ended up just under 40 on all tyres, works ok for me. Mantec sump guard.
Prospeed tree slider/steps.
Flack duel battery system.
18"Compomotive/AT3 tyres
Brembo 4pot front brakes
28th Nov 2016 1:05 pm
JonM
Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1247
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 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
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
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