Tyre pressures - confused?

gtr1000 · Oct 24th, 2009, 10:38

2010 model V70 (900 miles so far) with standard 17" rims, Continental Sportcontact II, 225/50 tyres -

The spec plate on the drivers door states 31/32psi for normal driving whilst the ECO pressure is 38psi.

At 38psi in the wet, the car seems very skittish (?) but at 31/32psi, it's very sure footed and planted. In order to maximise economy, I'd like to run @ 38psi but at what cost to safe driving?

Thoughts anyone or has anyone else experienced this?

Clan · Oct 24th, 2009, 12:05

how about a compromise ? 33 / 35

MartinK · Oct 28th, 2009, 16:13

GTR1000 - I absiolutely agree, my 2009 xc70 is the same.

I pumped mine up to ECO before driving from Edinburgh to Cornwall, and have left them there.

It does make the car skittish on poor surfaced roads.

Clan is correct. I do try using "compromise" pressures on other cars, and I think it's the best route.

Try things till you are happy. Suggest you use 31 psi as a "min" and 38 psi as a "max" though...

dannynic · Oct 29th, 2009, 13:34

I found this also. I found the car handled better and had a much better ride with the pressures in normal. I have found that having them in eco barely made any difference anyway to the mpg. So I left mine in the normal pressure.

Oct 24th, 2009, 10:38	#1
gtr1000 Junior Member Last Online: Jan 12th, 2012 21:23 Join Date: Oct 2009 Location: High Wycombe	Tyre pressures - confused? 2010 model V70 (900 miles so far) with standard 17" rims, Continental Sportcontact II, 225/50 tyres - The spec plate on the drivers door states 31/32psi for normal driving whilst the ECO pressure is 38psi. At 38psi in the wet, the car seems very skittish (?) but at 31/32psi, it's very sure footed and planted. In order to maximise economy, I'd like to run @ 38psi but at what cost to safe driving? Thoughts anyone or has anyone else experienced this?

Oct 24th, 2009, 12:05	#2
Clan Experienced Member Last Online: Yesterday 23:54 Join Date: Jun 2007 Location: L/H side	how about a compromise ? 33 / 35 __________________ My comments are only based on my opinions and vast experience .

Oct 28th, 2009, 16:13	#3
MartinK Senior Member Last Online: Jan 10th, 2019 14:27 Join Date: Apr 2009 Location: Edinburgh & Aviemore	GTR1000 - I absiolutely agree, my 2009 xc70 is the same. I pumped mine up to ECO before driving from Edinburgh to Cornwall, and have left them there. It does make the car skittish on poor surfaced roads. Clan is correct. I do try using "compromise" pressures on other cars, and I think it's the best route. Try things till you are happy. Suggest you use 31 psi as a "min" and 38 psi as a "max" though...

Oct 29th, 2009, 13:34	#4
dannynic Junior Member Last Online: May 1st, 2022 07:34 Join Date: May 2009 Location: Bridgwater Somerset	I found this also. I found the car handled better and had a much better ride with the pressures in normal. I have found that having them in eco barely made any difference anyway to the mpg. So I left mine in the normal pressure.

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