Originally Posted by charliez
How do I find the max sidewall pressure information?
To be fair I did not find it on my Conti WinterContacts, but was crouching in the dark and snow so did not look too well. Just assume it will be somewhere on it.
I use just under 3 bar (44 PSI) all round on my 175/65/15 winter tyres, but may go a bit higher even. It was 2 bar when I got them, which is below spec.
It did have a real effect on mpg (over 5%); got personal record mpg on some trips under worse conditions than previous runs.
The Honda electic pump is impossible to attach or detach without leaking some air, so you never know exactly how much pressure you really started with or ended up with, unless you get a steady hand at it.
At pressures around 3 bar I lose .1 bar by either detaching or attaching; I inflate to 3.1 bar and find 2.9 left when reattaching directly afterwards, due to leaking air while turning the screwy ring.