You can order some Snow Tyre straps from online which should help.
They dont cost very much and i think are an absolute necessity!
you’ll kick yourself if you didn’t have them. found this out the hard way myself on a Lesotho trip.
just remember to always carry extra and dont drive to fast. also. if your vehicle is only 2 WD – then you wont need to put on the back tyres obviously.
i also saw some skrew in snow spikes. BUT i wouldn’t recommend them. obviously.
As for you tyre pressure. just be careful you dont over inflate them. my suggestion is 1.2 KPA
similar to sand. but a hardend tyre will sink further in snow 😉
