If it does snow is it wise to reduce the psi or leave at 34/32??

If it does snow is it wise to reduce the psi or leave at 34/32??

Keep up to recommended pressures. Pressure in tyres will actually drop in lower temperatures ie about 1 psi for every 10 C. Tyre pressure should be set when ambient temperature ie about 15C of possible.

Theory I heard is that lower tyre pressures close up grooves in tyres and actual does not help.

Important thing is to take weight out of boot ie optimise weight over front wheels. If possible only keep your winter coat, spade, flask of bovril, kendal mint cake in the boot.

Edited 26 November, 201015 yr by lol

Theory I heard is that lower tyre pressures close up grooves in tyres and actual does not help.

:wonder:

:wonder:

You sure???

A few bags of sand in the passenger footwell I'm sure will help balance the driver. What do you think?

Hmmm interesting, would a lower pressure cause the tyre to spread thus actually opening up the treads? Also lower pressure = larger footprint = more friction??

I've never quite understood how the tyre compound makes such a big difference but it obviously does.

Thinner tyres are better in winter

If possible only keep your winter coat, spade, flask of bovril, kendal mint cake in the boot.

LOL. This made me giggle, not sure why.

Advice in my Leon's manual says to increase pressure by 0.2 bar for winter tyres. Don't know if this is a temperature compensation thing though.

I raised the pressure of my winter tyres by 2psi. If i had summer tyres still on i personally would do the same as to compensate for pressure dropping

http://www.klebertyres.co.uk/KleberUK/front/index.jsp?codeRubrique=8032005184643&codePage=KLEBER_PAG_conseilsvehic

I raised the pressure of my winter tyres by 2psi. If i had summer tyres still on i personally would do the same as to compensate for pressure dropping

http://www.klebertyres.co.uk/KleberUK/front/index.jsp?codeRubrique=8032005184643&codePage=KLEBER_PAG_conseilsvehic

Yeah I have put mine up to 35

LOL. This made me giggle, not sure why.

Me too!

Keep up to recommended pressures. Pressure in tyres will actually drop in lower temperatures ie about 1 psi for every 10 C. Tyre pressure should be set when ambient temperature ie about 15C of possible.

Theory I heard is that lower tyre pressures close up grooves in tyres and actual does not help.

Important thing is to take weight out of boot ie optimise weight over front wheels. If possible only keep your winter coat, spade, flask of bovril, kendal mint cake in the boot.

Lol bovril and kendal mint cake.

If you lower the pressure, the tyre will spread out. This would be fine on soft ground as it wouldn't sink as much, but on snow it will make the tyre sit on top of the snow when you want it to cut through the snow to get to the tarmac. Also running the tyres at low pressure will make them overheat at speed.

The ideal tyre in snow, is a narrow winter tyre.

raise by 2 simples

If you lower the pressure, the tyre will spread out. This would be fine on soft ground as it wouldn't sink as much, but on snow it will make the tyre sit on top of the snow when you want it to cut through the snow to get to the tarmac. Also running the tyres at low pressure will make them overheat at speed.

The ideal tyre in snow, is a narrow winter tyre.

Right, the definative incorrect answer - as proved by some "clever" person at work:- 1) reduce pressure by quite a bit, 2) drive to work, 3) stand back in amazment when you have discovered that one tyre now has the beads off the wheel rims. Now the really "cleverer" part, nip out at lunch time and come back after buying, a mini compressor to blow the tyres back up, after charging the tyres with lighter fuel (as seen on TopGear) and lighting the open valve with the matches that were also bought (again as seen on TopGear) - for those who did not see this "tip", the lighter gas fuel "explosion" is meant to force the tyre beads back onto the wheel rim. I did not hang about to see what the outcome was though for my amusement, I would not mind hearing about the outcome!!

Oh, but this was just a "get me by" action as winter tyres are on order and have been despatched!

Edited 1 December, 201015 yr by rum4mo